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3553 lines
112 KiB
3553 lines
112 KiB
/* This file is part of the KDE project
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Copyright (C) 2003-2007 Jaroslaw Staniek <js@iidea.pl>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <kexidb/connection.h>
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#include "error.h"
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#include "connection_p.h"
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#include "connectiondata.h"
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#include "driver.h"
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#include "driver_p.h"
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#include "schemadata.h"
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#include "tableschema.h"
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#include "relationship.h"
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#include "transaction.h"
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#include "cursor.h"
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#include "global.h"
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#include "roweditbuffer.h"
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#include "utils.h"
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#include "dbproperties.h"
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#include "lookupfieldschema.h"
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#include "parser/parser.h"
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#include <kexiutils/utils.h>
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#include <kexiutils/identifier.h>
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#include <tqdir.h>
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#include <tqfileinfo.h>
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#include <tqguardedptr.h>
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#include <tqdom.h>
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#include <klocale.h>
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#include <kdebug.h>
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#define KEXIDB_EXTENDED_TABLE_SCHEMA_VERSION 1
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//#define KEXIDB_LOOKUP_FIELD_TEST
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namespace KexiDB {
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Connection::SelectStatementOptions::SelectStatementOptions()
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: identifierEscaping(Driver::EscapeDriver|Driver::EscapeAsNecessary)
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, alsoRetrieveROWID(false)
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, addVisibleLookupColumns(true)
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{
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}
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Connection::SelectStatementOptions::~SelectStatementOptions()
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{
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}
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//================================================
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ConnectionInternal::ConnectionInternal(Connection *conn)
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: connection(conn)
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{
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}
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ConnectionInternal::~ConnectionInternal()
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{
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}
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//================================================
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//! @internal
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class ConnectionPrivate
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{
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public:
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ConnectionPrivate(Connection* const conn, ConnectionData &conn_data)
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: conn(conn)
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, conn_data(&conn_data)
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, tableSchemaChangeListeners(1009)
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, m_parser(0)
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, tables_byname(1009, false)
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, queries_byname(1009, false)
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, kexiDBSystemTables(101)
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, dont_remove_transactions(false)
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, skip_databaseExists_check_in_useDatabase(false)
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, default_trans_started_inside(false)
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, isConnected(false)
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, autoCommit(true)
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{
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tableSchemaChangeListeners.setAutoDelete(true);
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obsoleteQueries.setAutoDelete(true);
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tables.setAutoDelete(true);
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tables_byname.setAutoDelete(false);//tables is owner, not me
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kexiDBSystemTables.setAutoDelete(true);//only system tables
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queries.setAutoDelete(true);
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queries_byname.setAutoDelete(false);//queries is owner, not me
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//reasonable sizes: TODO
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tables.resize(1009);
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queries.resize(1009);
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}
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~ConnectionPrivate()
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{
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delete m_parser;
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}
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void errorInvalidDBContents(const TQString& details) {
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conn->setError( ERR_INVALID_DATABASE_CONTENTS, i18n("Invalid database contents. ")+details);
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}
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TQString strItIsASystemObject() const {
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return i18n("It is a system object.");
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}
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inline Parser *parser() { return m_parser ? m_parser : (m_parser = new Parser(conn)); }
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Connection* const conn; //!< The \a Connection instance this \a ConnectionPrivate belongs to.
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TQGuardedPtr<ConnectionData> conn_data; //!< the \a ConnectionData used within that connection.
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/*! Default transaction handle.
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If transactions are supported: Any operation on database (e.g. inserts)
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that is started without specifying transaction context, will be performed
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in the context of this transaction. */
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Transaction default_trans;
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TQValueList<Transaction> transactions;
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TQPtrDict< TQPtrList<Connection::TableSchemaChangeListenerInterface> > tableSchemaChangeListeners;
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//! Used in Connection::setQuerySchemaObsolete( const TQString& queryName )
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//! to collect obsolete queries. THese are deleted on connection deleting.
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TQPtrList<QuerySchema> obsoleteQueries;
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//! server version information for this connection.
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KexiDB::ServerVersionInfo serverVersion;
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//! Daabase version information for this connection.
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KexiDB::DatabaseVersionInfo databaseVersion;
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Parser *m_parser;
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//! Table schemas retrieved on demand with tableSchema()
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TQIntDict<TableSchema> tables;
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TQDict<TableSchema> tables_byname;
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TQIntDict<QuerySchema> queries;
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TQDict<QuerySchema> queries_byname;
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//! used just for removing system TableSchema objects on db close.
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TQPtrDict<TableSchema> kexiDBSystemTables;
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//! Database properties
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DatabaseProperties* dbProperties;
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TQString availableDatabaseName; //!< used by anyAvailableDatabaseName()
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TQString usedDatabase; //!< database name that is opened now (the currentDatabase() name)
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//! true if rollbackTransaction() and commitTransaction() shouldn't remove
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//! the transaction object from 'transactions' list; used by closeDatabase()
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bool dont_remove_transactions : 1;
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//! used to avoid endless recursion between useDatabase() and databaseExists()
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//! when useTemporaryDatabaseIfNeeded() works
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bool skip_databaseExists_check_in_useDatabase : 1;
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/*! Used when single transactions are only supported (Driver::SingleTransactions).
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True value means default transaction has been started inside connection object
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(by beginAutoCommitTransaction()), otherwise default transaction has been started outside
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of the object (e.g. before createTable()), so we shouldn't autocommit the transaction
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in commitAutoCommitTransaction(). Also, beginAutoCommitTransaction() doesn't restarts
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transaction if default_trans_started_inside is false. Such behaviour allows user to
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execute a sequence of actions like CREATE TABLE...; INSERT DATA...; within a single transaction
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and commit it or rollback by hand. */
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bool default_trans_started_inside : 1;
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bool isConnected : 1;
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bool autoCommit : 1;
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/*! True for read only connection. Used especially for file-based drivers. */
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bool readOnly : 1;
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};
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}//namespace KexiDB
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//================================================
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using namespace KexiDB;
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//! static: list of internal KexiDB system table names
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TQStringList KexiDB_kexiDBSystemTableNames;
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Connection::Connection( Driver *driver, ConnectionData &conn_data )
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: TQObject()
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,KexiDB::Object()
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,d(new ConnectionPrivate(this, conn_data))
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,m_driver(driver)
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,m_destructor_started(false)
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{
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d->dbProperties = new DatabaseProperties(this);
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m_cursors.setAutoDelete(true);
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// d->transactions.setAutoDelete(true);
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//reasonable sizes: TODO
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m_cursors.resize(101);
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// d->transactions.resize(101);//woohoo! so many transactions?
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m_sql.reserve(0x4000);
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}
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void Connection::destroy()
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{
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disconnect();
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//do not allow the driver to touch me: I will kill myself.
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m_driver->d->connections.take( this );
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}
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Connection::~Connection()
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{
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m_destructor_started = true;
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// KexiDBDbg << "Connection::~Connection()" << endl;
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delete d->dbProperties;
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delete d;
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d = 0;
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/* if (m_driver) {
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if (m_is_connected) {
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//delete own table schemas
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d->tables.clear();
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//delete own cursors:
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m_cursors.clear();
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}
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//do not allow the driver to touch me: I will kill myself.
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m_driver->m_connections.take( this );
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}*/
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}
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ConnectionData* Connection::data() const
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{
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return d->conn_data;
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}
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bool Connection::connect()
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{
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clearError();
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if (d->isConnected) {
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setError(ERR_ALREADY_CONNECTED, i18n("Connection already established.") );
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return false;
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}
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d->serverVersion.clear();
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if (!(d->isConnected = drv_connect(d->serverVersion))) {
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setError(m_driver->isFileDriver() ?
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i18n("Could not open \"%1\" project file.").arg(TQDir::convertSeparators(d->conn_data->fileName()))
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: i18n("Could not connect to \"%1\" database server.").arg(d->conn_data->serverInfoString()) );
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}
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return d->isConnected;
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}
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bool Connection::isDatabaseUsed() const
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{
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return !d->usedDatabase.isEmpty() && d->isConnected && drv_isDatabaseUsed();
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}
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void Connection::clearError()
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{
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Object::clearError();
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m_sql = TQString();
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}
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bool Connection::disconnect()
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{
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clearError();
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if (!d->isConnected)
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return true;
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if (!closeDatabase())
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return false;
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bool ok = drv_disconnect();
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if (ok)
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d->isConnected = false;
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return ok;
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}
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bool Connection::isConnected() const
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{
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return d->isConnected;
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}
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bool Connection::checkConnected()
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{
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if (d->isConnected) {
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clearError();
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return true;
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}
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setError(ERR_NO_CONNECTION, i18n("Not connected to the database server.") );
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return false;
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}
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bool Connection::checkIsDatabaseUsed()
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{
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if (isDatabaseUsed()) {
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clearError();
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return true;
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}
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setError(ERR_NO_DB_USED, i18n("Currently no database is used.") );
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return false;
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}
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TQStringList Connection::databaseNames(bool also_system_db)
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{
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KexiDBDbg << "Connection::databaseNames("<<also_system_db<<")"<< endl;
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if (!checkConnected())
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return TQStringList();
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TQString tmpdbName;
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//some engines need to have opened any database before executing "create database"
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if (!useTemporaryDatabaseIfNeeded(tmpdbName))
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return TQStringList();
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TQStringList list, non_system_list;
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bool ret = drv_getDatabasesList( list );
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if (!tmpdbName.isEmpty()) {
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//whatever result is - now we have to close temporary opened database:
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if (!closeDatabase())
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return TQStringList();
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}
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if (!ret)
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return TQStringList();
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if (also_system_db)
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return list;
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//filter system databases:
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for (TQStringList::ConstIterator it = list.constBegin(); it!=list.constEnd(); ++it) {
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KexiDBDbg << "Connection::databaseNames(): " << *it << endl;
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if (!m_driver->isSystemDatabaseName(*it)) {
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KexiDBDbg << "add " << *it << endl;
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non_system_list << (*it);
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}
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}
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return non_system_list;
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}
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bool Connection::drv_getDatabasesList( TQStringList &list )
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{
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list.clear();
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return true;
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}
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bool Connection::drv_databaseExists( const TQString &dbName, bool ignoreErrors )
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{
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TQStringList list = databaseNames(true);//also system
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if (error()) {
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return false;
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}
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if (list.find( dbName )==list.end()) {
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if (!ignoreErrors)
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setError(ERR_OBJECT_NOT_FOUND, i18n("The database \"%1\" does not exist.").arg(dbName));
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return false;
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}
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return true;
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}
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bool Connection::databaseExists( const TQString &dbName, bool ignoreErrors )
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{
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// KexiDBDbg << "Connection::databaseExists(" << dbName << "," << ignoreErrors << ")" << endl;
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if (!checkConnected())
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return false;
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clearError();
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if (m_driver->isFileDriver()) {
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//for file-based db: file must exists and be accessible
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//js: moved from useDatabase():
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TQFileInfo file(d->conn_data->fileName());
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if (!file.exists() || ( !file.isFile() && !file.isSymLink()) ) {
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if (!ignoreErrors)
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setError(ERR_OBJECT_NOT_FOUND, i18n("Database file \"%1\" does not exist.")
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.arg(TQDir::convertSeparators(d->conn_data->fileName())) );
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return false;
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}
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if (!file.isReadable()) {
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if (!ignoreErrors)
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setError(ERR_ACCESS_RIGHTS, i18n("Database file \"%1\" is not readable.")
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.arg(TQDir::convertSeparators(d->conn_data->fileName())) );
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return false;
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}
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if (!file.isWritable()) {
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if (!ignoreErrors)
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setError(ERR_ACCESS_RIGHTS, i18n("Database file \"%1\" is not writable.")
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.arg(TQDir::convertSeparators(d->conn_data->fileName())) );
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return false;
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}
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return true;
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}
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TQString tmpdbName;
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//some engines need to have opened any database before executing "create database"
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const bool orig_skip_databaseExists_check_in_useDatabase = d->skip_databaseExists_check_in_useDatabase;
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d->skip_databaseExists_check_in_useDatabase = true;
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bool ret = useTemporaryDatabaseIfNeeded(tmpdbName);
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d->skip_databaseExists_check_in_useDatabase = orig_skip_databaseExists_check_in_useDatabase;
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if (!ret)
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return false;
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ret = drv_databaseExists(dbName, ignoreErrors);
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if (!tmpdbName.isEmpty()) {
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//whatever result is - now we have to close temporary opened database:
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if (!closeDatabase())
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return false;
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}
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return ret;
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}
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#define createDatabase_CLOSE \
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{ if (!closeDatabase()) { \
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setError(i18n("Database \"%1\" created but could not be closed after creation.").arg(dbName) ); \
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return false; \
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} }
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#define createDatabase_ERROR \
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{ createDatabase_CLOSE; return false; }
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bool Connection::createDatabase( const TQString &dbName )
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{
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if (!checkConnected())
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return false;
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if (databaseExists( dbName )) {
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setError(ERR_OBJECT_EXISTS, i18n("Database \"%1\" already exists.").arg(dbName) );
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return false;
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}
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if (m_driver->isSystemDatabaseName( dbName )) {
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setError(ERR_SYSTEM_NAME_RESERVED,
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i18n("Cannot create database \"%1\". This name is reserved for system database.").arg(dbName) );
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return false;
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}
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if (m_driver->isFileDriver()) {
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//update connection data if filename differs
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d->conn_data->setFileName( dbName );
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}
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TQString tmpdbName;
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//some engines need to have opened any database before executing "create database"
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if (!useTemporaryDatabaseIfNeeded(tmpdbName))
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return false;
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//low-level create
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if (!drv_createDatabase( dbName )) {
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setError(i18n("Error creating database \"%1\" on the server.").arg(dbName) );
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closeDatabase();//sanity
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return false;
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}
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if (!tmpdbName.isEmpty()) {
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//whatever result is - now we have to close temporary opened database:
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if (!closeDatabase())
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return false;
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}
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if (!tmpdbName.isEmpty() || !m_driver->d->isDBOpenedAfterCreate) {
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//db need to be opened
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if (!useDatabase( dbName, false/*not yet kexi compatible!*/ )) {
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setError(i18n("Database \"%1\" created but could not be opened.").arg(dbName) );
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return false;
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}
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}
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else {
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//just for the rule
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d->usedDatabase = dbName;
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}
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Transaction trans;
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if (m_driver->transactionsSupported()) {
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trans = beginTransaction();
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if (!trans.active())
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return false;
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}
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//not needed since closeDatabase() rollbacks transaction: TransactionGuard trans_g(this);
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// if (error())
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// return false;
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//-create system tables schema objects
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if (!setupKexiDBSystemSchema())
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return false;
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//-physically create system tables
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for (TQPtrDictIterator<TableSchema> it(d->kexiDBSystemTables); it.current(); ++it) {
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if (!drv_createTable( it.current()->name() ))
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createDatabase_ERROR;
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}
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/* moved to KexiProject...
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//-create default part info
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TableSchema *ts;
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if (!(ts = tableSchema("kexi__parts")))
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createDatabase_ERROR;
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FieldList *fl = ts->subList("p_id", "p_name", "p_mime", "p_url");
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if (!fl)
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createDatabase_ERROR;
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if (!insertRecord(*fl, TQVariant(1), TQVariant("Tables"), TQVariant("kexi/table"), TQVariant("http://koffice.org/kexi/")))
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createDatabase_ERROR;
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if (!insertRecord(*fl, TQVariant(2), TQVariant("Queries"), TQVariant("kexi/query"), TQVariant("http://koffice.org/kexi/")))
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createDatabase_ERROR;
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*/
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//-insert KexiDB version info:
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TableSchema *t_db = tableSchema("kexi__db");
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if (!t_db)
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createDatabase_ERROR;
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if ( !insertRecord(*t_db, "kexidb_major_ver", KexiDB::version().major)
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|| !insertRecord(*t_db, "kexidb_minor_ver", KexiDB::version().minor))
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createDatabase_ERROR;
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if (trans.active() && !commitTransaction(trans))
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createDatabase_ERROR;
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createDatabase_CLOSE;
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return true;
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}
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#undef createDatabase_CLOSE
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#undef createDatabase_ERROR
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|
|
bool Connection::useDatabase( const TQString &dbName, bool kexiCompatible, bool *cancelled, MessageHandler* msgHandler )
|
|
{
|
|
if (cancelled)
|
|
*cancelled = false;
|
|
KexiDBDbg << "Connection::useDatabase(" << dbName << "," << kexiCompatible <<")" << endl;
|
|
if (!checkConnected())
|
|
return false;
|
|
|
|
if (dbName.isEmpty())
|
|
return false;
|
|
TQString my_dbName = dbName;
|
|
// if (my_dbName.isEmpty()) {
|
|
// const TQStringList& db_lst = databaseNames();
|
|
// if (!db_lst.isEmpty())
|
|
// my_dbName = db_lst.first();
|
|
// }
|
|
if (d->usedDatabase == my_dbName)
|
|
return true; //already used
|
|
|
|
if (!d->skip_databaseExists_check_in_useDatabase) {
|
|
if (!databaseExists(my_dbName, false /*don't ignore errors*/))
|
|
return false; //database must exist
|
|
}
|
|
|
|
if (!d->usedDatabase.isEmpty() && !closeDatabase()) //close db if already used
|
|
return false;
|
|
|
|
d->usedDatabase = "";
|
|
|
|
if (!drv_useDatabase( my_dbName, cancelled, msgHandler )) {
|
|
if (cancelled && *cancelled)
|
|
return false;
|
|
TQString msg(i18n("Opening database \"%1\" failed.").arg( my_dbName ));
|
|
if (error())
|
|
setError( this, msg );
|
|
else
|
|
setError( msg );
|
|
return false;
|
|
}
|
|
|
|
//-create system tables schema objects
|
|
if (!setupKexiDBSystemSchema())
|
|
return false;
|
|
|
|
if (kexiCompatible && my_dbName.lower()!=anyAvailableDatabaseName().lower()) {
|
|
//-get global database information
|
|
int num;
|
|
bool ok;
|
|
// static TQString notfound_str = i18n("\"%1\" database property not found");
|
|
num = d->dbProperties->value("kexidb_major_ver").toInt(&ok);
|
|
if (!ok)
|
|
return false;
|
|
d->databaseVersion.major = num;
|
|
/* if (true!=querySingleNumber(
|
|
"select db_value from kexi__db where db_property=" + m_driver->escapeString(TQString("kexidb_major_ver")), num)) {
|
|
d->errorInvalidDBContents(notfound_str.arg("kexidb_major_ver"));
|
|
return false;
|
|
}*/
|
|
num = d->dbProperties->value("kexidb_minor_ver").toInt(&ok);
|
|
if (!ok)
|
|
return false;
|
|
d->databaseVersion.minor = num;
|
|
/* if (true!=querySingleNumber(
|
|
"select db_value from kexi__db where db_property=" + m_driver->escapeString(TQString("kexidb_minor_ver")), num)) {
|
|
d->errorInvalidDBContents(notfound_str.arg("kexidb_minor_ver"));
|
|
return false;
|
|
}*/
|
|
|
|
#if 0 //this is already checked in DriverManagerInternal::lookupDrivers()
|
|
//** error if major version does not match
|
|
if (m_driver->versionMajor()!=KexiDB::versionMajor()) {
|
|
setError(ERR_INCOMPAT_DATABASE_VERSION,
|
|
i18n("Database version (%1) does not match Kexi application's version (%2)")
|
|
.arg( TQString("%1.%2").arg(versionMajor()).arg(versionMinor()) )
|
|
.arg( TQString("%1.%2").arg(KexiDB::versionMajor()).arg(KexiDB::versionMinor()) ) );
|
|
return false;
|
|
}
|
|
if (m_driver->versionMinor()!=KexiDB::versionMinor()) {
|
|
//js TODO: COMPATIBILITY CODE HERE!
|
|
//js TODO: CONVERSION CODE HERE (or signal that conversion is needed)
|
|
}
|
|
#endif
|
|
}
|
|
d->usedDatabase = my_dbName;
|
|
return true;
|
|
}
|
|
|
|
bool Connection::closeDatabase()
|
|
{
|
|
if (d->usedDatabase.isEmpty())
|
|
return true; //no db used
|
|
if (!checkConnected())
|
|
return true;
|
|
|
|
bool ret = true;
|
|
|
|
/*! \todo (js) add CLEVER algorithm here for nested transactions */
|
|
if (m_driver->transactionsSupported()) {
|
|
//rollback all transactions
|
|
TQValueList<Transaction>::ConstIterator it;
|
|
d->dont_remove_transactions=true; //lock!
|
|
for (it=d->transactions.constBegin(); it!= d->transactions.constEnd(); ++it) {
|
|
if (!rollbackTransaction(*it)) {//rollback as much as you can, don't stop on prev. errors
|
|
ret = false;
|
|
}
|
|
else {
|
|
KexiDBDbg << "Connection::closeDatabase(): transaction rolled back!" << endl;
|
|
KexiDBDbg << "Connection::closeDatabase(): trans.refcount==" <<
|
|
((*it).m_data ? TQString::number((*it).m_data->refcount) : "(null)") << endl;
|
|
}
|
|
}
|
|
d->dont_remove_transactions=false; //unlock!
|
|
d->transactions.clear(); //free trans. data
|
|
}
|
|
|
|
//delete own cursors:
|
|
m_cursors.clear();
|
|
//delete own schemas
|
|
d->tables.clear();
|
|
d->kexiDBSystemTables.clear();
|
|
d->queries.clear();
|
|
|
|
if (!drv_closeDatabase())
|
|
return false;
|
|
|
|
d->usedDatabase = "";
|
|
// KexiDBDbg << "Connection::closeDatabase(): " << ret << endl;
|
|
return ret;
|
|
}
|
|
|
|
TQString Connection::currentDatabase() const
|
|
{
|
|
return d->usedDatabase;
|
|
}
|
|
|
|
bool Connection::useTemporaryDatabaseIfNeeded(TQString &tmpdbName)
|
|
{
|
|
if (!m_driver->isFileDriver() && m_driver->beh->USING_DATABASE_REQUIRED_TO_CONNECT
|
|
&& !isDatabaseUsed()) {
|
|
//we have no db used, but it is required by engine to have used any!
|
|
tmpdbName = anyAvailableDatabaseName();
|
|
if (tmpdbName.isEmpty()) {
|
|
setError(ERR_NO_DB_USED, i18n("Cannot find any database for temporary connection.") );
|
|
return false;
|
|
}
|
|
const bool orig_skip_databaseExists_check_in_useDatabase = d->skip_databaseExists_check_in_useDatabase;
|
|
d->skip_databaseExists_check_in_useDatabase = true;
|
|
bool ret = useDatabase(tmpdbName, false);
|
|
d->skip_databaseExists_check_in_useDatabase = orig_skip_databaseExists_check_in_useDatabase;
|
|
if (!ret) {
|
|
setError(errorNum(),
|
|
i18n("Error during starting temporary connection using \"%1\" database name.")
|
|
.arg(tmpdbName) );
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool Connection::dropDatabase( const TQString &dbName )
|
|
{
|
|
if (!checkConnected())
|
|
return false;
|
|
|
|
TQString dbToDrop;
|
|
if (dbName.isEmpty() && d->usedDatabase.isEmpty()) {
|
|
if (!m_driver->isFileDriver()
|
|
|| (m_driver->isFileDriver() && d->conn_data->fileName().isEmpty()) ) {
|
|
setError(ERR_NO_NAME_SPECIFIED, i18n("Cannot drop database - name not specified.") );
|
|
return false;
|
|
}
|
|
//this is a file driver so reuse previously passed filename
|
|
dbToDrop = d->conn_data->fileName();
|
|
}
|
|
else {
|
|
if (dbName.isEmpty()) {
|
|
dbToDrop = d->usedDatabase;
|
|
} else {
|
|
if (m_driver->isFileDriver()) //lets get full path
|
|
dbToDrop = TQFileInfo(dbName).absFilePath();
|
|
else
|
|
dbToDrop = dbName;
|
|
}
|
|
}
|
|
|
|
if (dbToDrop.isEmpty()) {
|
|
setError(ERR_NO_NAME_SPECIFIED, i18n("Cannot delete database - name not specified.") );
|
|
return false;
|
|
}
|
|
|
|
if (m_driver->isSystemDatabaseName( dbToDrop )) {
|
|
setError(ERR_SYSTEM_NAME_RESERVED, i18n("Cannot delete system database \"%1\".").arg(dbToDrop) );
|
|
return false;
|
|
}
|
|
|
|
if (isDatabaseUsed() && d->usedDatabase == dbToDrop) {
|
|
//we need to close database because cannot drop used this database
|
|
if (!closeDatabase())
|
|
return false;
|
|
}
|
|
|
|
TQString tmpdbName;
|
|
//some engines need to have opened any database before executing "drop database"
|
|
if (!useTemporaryDatabaseIfNeeded(tmpdbName))
|
|
return false;
|
|
|
|
//ok, now we have access to dropping
|
|
bool ret = drv_dropDatabase( dbToDrop );
|
|
|
|
if (!tmpdbName.isEmpty()) {
|
|
//whatever result is - now we have to close temporary opened database:
|
|
if (!closeDatabase())
|
|
return false;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
TQStringList Connection::objectNames(int objType, bool* ok)
|
|
{
|
|
TQStringList list;
|
|
|
|
if (!checkIsDatabaseUsed()) {
|
|
if(ok)
|
|
*ok = false;
|
|
return list;
|
|
}
|
|
|
|
TQString sql;
|
|
if (objType==KexiDB::AnyObjectType)
|
|
sql = "SELECT o_name FROM kexi__objects";
|
|
else
|
|
sql = TQString::fromLatin1("SELECT o_name FROM kexi__objects WHERE o_type=%1").arg(objType);
|
|
|
|
Cursor *c = executeQuery(sql);
|
|
if (!c) {
|
|
if(ok)
|
|
*ok = false;
|
|
return list;
|
|
}
|
|
|
|
for (c->moveFirst(); !c->eof(); c->moveNext()) {
|
|
TQString name = c->value(0).toString();
|
|
if (KexiUtils::isIdentifier( name )) {
|
|
list.append(name);
|
|
}
|
|
}
|
|
|
|
if (!deleteCursor(c)) {
|
|
if(ok)
|
|
*ok = false;
|
|
return list;
|
|
}
|
|
|
|
if(ok)
|
|
*ok = true;
|
|
return list;
|
|
}
|
|
|
|
TQStringList Connection::tableNames(bool also_system_tables)
|
|
{
|
|
bool ok = true;
|
|
TQStringList list = objectNames(TableObjectType, &ok);
|
|
if (also_system_tables && ok) {
|
|
list += Connection::kexiDBSystemTableNames();
|
|
}
|
|
return list;
|
|
}
|
|
|
|
//! \todo (js): this will depend on KexiDB lib version
|
|
const TQStringList& Connection::kexiDBSystemTableNames()
|
|
{
|
|
if (KexiDB_kexiDBSystemTableNames.isEmpty()) {
|
|
KexiDB_kexiDBSystemTableNames
|
|
<< "kexi__objects"
|
|
<< "kexi__objectdata"
|
|
<< "kexi__fields"
|
|
// << "kexi__querydata"
|
|
// << "kexi__queryfields"
|
|
// << "kexi__querytables"
|
|
<< "kexi__db"
|
|
;
|
|
}
|
|
return KexiDB_kexiDBSystemTableNames;
|
|
}
|
|
|
|
KexiDB::ServerVersionInfo* Connection::serverVersion() const
|
|
{
|
|
return isConnected() ? &d->serverVersion : 0;
|
|
}
|
|
|
|
KexiDB::DatabaseVersionInfo* Connection::databaseVersion() const
|
|
{
|
|
return isDatabaseUsed() ? &d->databaseVersion : 0;
|
|
}
|
|
|
|
DatabaseProperties& Connection::databaseProperties()
|
|
{
|
|
return *d->dbProperties;
|
|
}
|
|
|
|
TQValueList<int> Connection::tableIds()
|
|
{
|
|
return objectIds(KexiDB::TableObjectType);
|
|
}
|
|
|
|
TQValueList<int> Connection::queryIds()
|
|
{
|
|
return objectIds(KexiDB::QueryObjectType);
|
|
}
|
|
|
|
TQValueList<int> Connection::objectIds(int objType)
|
|
{
|
|
TQValueList<int> list;
|
|
|
|
if (!checkIsDatabaseUsed())
|
|
return list;
|
|
|
|
Cursor *c = executeQuery(
|
|
TQString::fromLatin1("SELECT o_id, o_name FROM kexi__objects WHERE o_type=%1").arg(objType));
|
|
if (!c)
|
|
return list;
|
|
for (c->moveFirst(); !c->eof(); c->moveNext())
|
|
{
|
|
TQString tname = c->value(1).toString(); //kexi__objects.o_name
|
|
if (KexiUtils::isIdentifier( tname )) {
|
|
list.append(c->value(0).toInt()); //kexi__objects.o_id
|
|
}
|
|
}
|
|
|
|
deleteCursor(c);
|
|
|
|
return list;
|
|
}
|
|
|
|
TQString Connection::createTableStatement( const KexiDB::TableSchema& tableSchema ) const
|
|
{
|
|
// Each SQL identifier needs to be escaped in the generated query.
|
|
TQString sql;
|
|
sql.reserve(4096);
|
|
sql = "CREATE TABLE " + escapeIdentifier(tableSchema.name()) + " (";
|
|
bool first=true;
|
|
Field::ListIterator it( tableSchema.m_fields );
|
|
Field *field;
|
|
for (;(field = it.current())!=0; ++it) {
|
|
if (first)
|
|
first = false;
|
|
else
|
|
sql += ", ";
|
|
TQString v = escapeIdentifier(field->name()) + " ";
|
|
const bool autoinc = field->isAutoIncrement();
|
|
const bool pk = field->isPrimaryKey() || (autoinc && m_driver->beh->AUTO_INCREMENT_REQUIRES_PK);
|
|
//TODO: warning: ^^^^^ this allows only one autonumber per table when AUTO_INCREMENT_REQUIRES_PK==true!
|
|
if (autoinc && m_driver->beh->SPECIAL_AUTO_INCREMENT_DEF) {
|
|
if (pk)
|
|
v += m_driver->beh->AUTO_INCREMENT_TYPE + " " + m_driver->beh->AUTO_INCREMENT_PK_FIELD_OPTION;
|
|
else
|
|
v += m_driver->beh->AUTO_INCREMENT_TYPE + " " + m_driver->beh->AUTO_INCREMENT_FIELD_OPTION;
|
|
}
|
|
else {
|
|
if (autoinc && !m_driver->beh->AUTO_INCREMENT_TYPE.isEmpty())
|
|
v += m_driver->beh->AUTO_INCREMENT_TYPE;
|
|
else
|
|
v += m_driver->sqlTypeName(field->type(), field->precision());
|
|
|
|
if (field->isUnsigned())
|
|
v += (" " + m_driver->beh->UNSIGNED_TYPE_KEYWORD);
|
|
|
|
if (field->isFPNumericType() && field->precision()>0) {
|
|
if (field->scale()>0)
|
|
v += TQString::fromLatin1("(%1,%2)").arg(field->precision()).arg(field->scale());
|
|
else
|
|
v += TQString::fromLatin1("(%1)").arg(field->precision());
|
|
}
|
|
else if (field->type()==Field::Text && field->length()>0)
|
|
v += TQString::fromLatin1("(%1)").arg(field->length());
|
|
|
|
if (autoinc)
|
|
v += (" " +
|
|
(pk ? m_driver->beh->AUTO_INCREMENT_PK_FIELD_OPTION : m_driver->beh->AUTO_INCREMENT_FIELD_OPTION));
|
|
else
|
|
//TODO: here is automatically a single-field key created
|
|
if (pk)
|
|
v += " PRIMARY KEY";
|
|
if (!pk && field->isUniqueKey())
|
|
v += " UNIQUE";
|
|
///@todo IS this ok for all engines?: if (!autoinc && !field->isPrimaryKey() && field->isNotNull())
|
|
if (!autoinc && !pk && field->isNotNull())
|
|
v += " NOT NULL"; //only add not null option if no autocommit is set
|
|
if (field->defaultValue().isValid()) {
|
|
TQString valToSQL( m_driver->valueToSQL( field, field->defaultValue() ) );
|
|
if (!valToSQL.isEmpty()) //for sanity
|
|
v += TQString::fromLatin1(" DEFAULT ") + valToSQL;
|
|
}
|
|
}
|
|
sql += v;
|
|
}
|
|
sql += ")";
|
|
return sql;
|
|
}
|
|
|
|
//yeah, it is very efficient:
|
|
#define C_A(a) , const TQVariant& c ## a
|
|
|
|
#define V_A0 m_driver->valueToSQL( tableSchema.field(0), c0 )
|
|
#define V_A(a) +","+m_driver->valueToSQL( \
|
|
tableSchema.field(a) ? tableSchema.field(a)->type() : Field::Text, c ## a )
|
|
|
|
// KexiDBDbg << "******** " << TQString("INSERT INTO ") +
|
|
// escapeIdentifier(tableSchema.name()) +
|
|
// " VALUES (" + vals + ")" <<endl;
|
|
|
|
#define C_INS_REC(args, vals) \
|
|
bool Connection::insertRecord(KexiDB::TableSchema &tableSchema args) {\
|
|
return executeSQL( \
|
|
TQString("INSERT INTO ") + escapeIdentifier(tableSchema.name()) + " VALUES (" + vals + ")" \
|
|
); \
|
|
}
|
|
|
|
#define C_INS_REC_ALL \
|
|
C_INS_REC( C_A(0), V_A0 ) \
|
|
C_INS_REC( C_A(0) C_A(1), V_A0 V_A(1) ) \
|
|
C_INS_REC( C_A(0) C_A(1) C_A(2), V_A0 V_A(1) V_A(2) ) \
|
|
C_INS_REC( C_A(0) C_A(1) C_A(2) C_A(3), V_A0 V_A(1) V_A(2) V_A(3) ) \
|
|
C_INS_REC( C_A(0) C_A(1) C_A(2) C_A(3) C_A(4), V_A0 V_A(1) V_A(2) V_A(3) V_A(4) ) \
|
|
C_INS_REC( C_A(0) C_A(1) C_A(2) C_A(3) C_A(4) C_A(5), V_A0 V_A(1) V_A(2) V_A(3) V_A(4) V_A(5) ) \
|
|
C_INS_REC( C_A(0) C_A(1) C_A(2) C_A(3) C_A(4) C_A(5) C_A(6), V_A0 V_A(1) V_A(2) V_A(3) V_A(4) V_A(5) V_A(6) ) \
|
|
C_INS_REC( C_A(0) C_A(1) C_A(2) C_A(3) C_A(4) C_A(5) C_A(6) C_A(7), V_A0 V_A(1) V_A(2) V_A(3) V_A(4) V_A(5) V_A(6) V_A(7) )
|
|
|
|
C_INS_REC_ALL
|
|
|
|
#undef V_A0
|
|
#undef V_A
|
|
#undef C_INS_REC
|
|
|
|
#define V_A0 value += m_driver->valueToSQL( flist->first(), c0 );
|
|
#define V_A( a ) value += ("," + m_driver->valueToSQL( flist->next(), c ## a ));
|
|
//#define V_ALAST( a ) valueToSQL( flist->last(), c ## a )
|
|
|
|
|
|
#define C_INS_REC(args, vals) \
|
|
bool Connection::insertRecord(FieldList& fields args) \
|
|
{ \
|
|
TQString value; \
|
|
Field::List *flist = fields.fields(); \
|
|
vals \
|
|
return executeSQL( \
|
|
TQString("INSERT INTO ") + \
|
|
((fields.fields()->first() && fields.fields()->first()->table()) ? \
|
|
escapeIdentifier(fields.fields()->first()->table()->name()) : \
|
|
"??") \
|
|
+ "(" + fields.sqlFieldsList(m_driver) + ") VALUES (" + value + ")" \
|
|
); \
|
|
}
|
|
|
|
C_INS_REC_ALL
|
|
|
|
#undef C_A
|
|
#undef V_A
|
|
#undef V_ALAST
|
|
#undef C_INS_REC
|
|
#undef C_INS_REC_ALL
|
|
|
|
bool Connection::insertRecord(TableSchema &tableSchema, TQValueList<TQVariant>& values)
|
|
{
|
|
// Each SQL identifier needs to be escaped in the generated query.
|
|
Field::List *fields = tableSchema.fields();
|
|
Field *f = fields->first();
|
|
// TQString s_val;
|
|
// s_val.reserve(4096);
|
|
m_sql = TQString();
|
|
TQValueList<TQVariant>::ConstIterator it = values.constBegin();
|
|
// int i=0;
|
|
while (f && (it!=values.end())) {
|
|
if (m_sql.isEmpty())
|
|
m_sql = TQString("INSERT INTO ") +
|
|
escapeIdentifier(tableSchema.name()) +
|
|
" VALUES (";
|
|
else
|
|
m_sql += ",";
|
|
m_sql += m_driver->valueToSQL( f, *it );
|
|
// KexiDBDbg << "val" << i++ << ": " << m_driver->valueToSQL( f, *it ) << endl;
|
|
++it;
|
|
f=fields->next();
|
|
}
|
|
m_sql += ")";
|
|
|
|
// KexiDBDbg<<"******** "<< m_sql << endl;
|
|
return executeSQL(m_sql);
|
|
}
|
|
|
|
bool Connection::insertRecord(FieldList& fields, TQValueList<TQVariant>& values)
|
|
{
|
|
// Each SQL identifier needs to be escaped in the generated query.
|
|
Field::List *flist = fields.fields();
|
|
Field *f = flist->first();
|
|
if (!f)
|
|
return false;
|
|
// TQString s_val;
|
|
// s_val.reserve(4096);
|
|
m_sql = TQString();
|
|
TQValueList<TQVariant>::ConstIterator it = values.constBegin();
|
|
// int i=0;
|
|
while (f && (it!=values.constEnd())) {
|
|
if (m_sql.isEmpty())
|
|
m_sql = TQString("INSERT INTO ") +
|
|
escapeIdentifier(flist->first()->table()->name()) + "(" +
|
|
fields.sqlFieldsList(m_driver) + ") VALUES (";
|
|
else
|
|
m_sql += ",";
|
|
m_sql += m_driver->valueToSQL( f, *it );
|
|
// KexiDBDbg << "val" << i++ << ": " << m_driver->valueToSQL( f, *it ) << endl;
|
|
++it;
|
|
f=flist->next();
|
|
}
|
|
m_sql += ")";
|
|
|
|
return executeSQL(m_sql);
|
|
}
|
|
|
|
bool Connection::executeSQL( const TQString& statement )
|
|
{
|
|
m_sql = statement; //remember for error handling
|
|
if (!drv_executeSQL( m_sql )) {
|
|
m_errMsg = TQString(); //clear as this could be most probably jsut "Unknown error" string.
|
|
m_errorSql = statement;
|
|
setError(this, ERR_SQL_EXECUTION_ERROR, i18n("Error while executing SQL statement."));
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
TQString Connection::selectStatement( KexiDB::QuerySchema& querySchema,
|
|
const TQValueList<TQVariant>& params,
|
|
const SelectStatementOptions& options) const
|
|
{
|
|
//"SELECT FROM ..." is theoretically allowed "
|
|
//if (querySchema.fieldCount()<1)
|
|
// return TQString();
|
|
// Each SQL identifier needs to be escaped in the generated query.
|
|
|
|
if (!querySchema.statement().isEmpty())
|
|
return querySchema.statement();
|
|
|
|
//! @todo looking at singleTable is visually nice but a field name can conflict
|
|
//! with function or variable name...
|
|
Field *f;
|
|
uint number = 0;
|
|
bool singleTable = querySchema.tables()->count() <= 1;
|
|
if (singleTable) {
|
|
//make sure we will have single table:
|
|
for (Field::ListIterator it = querySchema.fieldsIterator(); (f = it.current()); ++it, number++) {
|
|
if (querySchema.isColumnVisible(number) && f->table() && f->table()->lookupFieldSchema( *f )) {
|
|
//uups, no, there's at least one left join
|
|
singleTable = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
TQString sql; //final sql string
|
|
sql.reserve(4096);
|
|
//unused TQString s_from_additional; //additional tables list needed for lookup fields
|
|
TQString s_additional_joins; //additional joins needed for lookup fields
|
|
TQString s_additional_fields; //additional fields to append to the fields list
|
|
uint internalUniqueTableAliasNumber = 0; //used to build internalUniqueTableAliases
|
|
uint internalUniqueQueryAliasNumber = 0; //used to build internalUniqueQueryAliases
|
|
number = 0;
|
|
TQPtrList<QuerySchema> subqueries_for_lookup_data; // subqueries will be added to FROM section
|
|
TQString kexidb_subquery_prefix("__kexidb_subquery_");
|
|
for (Field::ListIterator it = querySchema.fieldsIterator(); (f = it.current()); ++it, number++) {
|
|
if (querySchema.isColumnVisible(number)) {
|
|
if (!sql.isEmpty())
|
|
sql += TQString::fromLatin1(", ");
|
|
|
|
if (f->isQueryAsterisk()) {
|
|
if (!singleTable && static_cast<QueryAsterisk*>(f)->isSingleTableAsterisk()) //single-table *
|
|
sql += escapeIdentifier(f->table()->name(), options.identifierEscaping) +
|
|
TQString::fromLatin1(".*");
|
|
else //all-tables * (or simplified table.* when there's only one table)
|
|
sql += TQString::fromLatin1("*");
|
|
}
|
|
else {
|
|
if (f->isExpression()) {
|
|
sql += f->expression()->toString();
|
|
}
|
|
else {
|
|
if (!f->table()) //sanity check
|
|
return TQString();
|
|
|
|
TQString tableName;
|
|
int tablePosition = querySchema.tableBoundToColumn(number);
|
|
if (tablePosition>=0)
|
|
tableName = querySchema.tableAlias(tablePosition);
|
|
if (tableName.isEmpty())
|
|
tableName = f->table()->name();
|
|
|
|
if (!singleTable) {
|
|
sql += (escapeIdentifier(tableName, options.identifierEscaping) + ".");
|
|
}
|
|
sql += escapeIdentifier(f->name(), options.identifierEscaping);
|
|
}
|
|
TQString aliasString = TQString(querySchema.columnAlias(number));
|
|
if (!aliasString.isEmpty())
|
|
sql += (TQString::fromLatin1(" AS ") + aliasString);
|
|
//! @todo add option that allows to omit "AS" keyword
|
|
}
|
|
LookupFieldSchema *lookupFieldSchema = (options.addVisibleLookupColumns && f->table())
|
|
? f->table()->lookupFieldSchema( *f ) : 0;
|
|
if (lookupFieldSchema && lookupFieldSchema->boundColumn()>=0) {
|
|
// Lookup field schema found
|
|
// Now we also need to fetch "visible" value from the lookup table, not only the value of binding.
|
|
// -> build LEFT OUTER JOIN clause for this purpose (LEFT, not INNER because the binding can be broken)
|
|
// "LEFT OUTER JOIN lookupTable ON thisTable.thisField=lookupTable.boundField"
|
|
LookupFieldSchema::RowSource& rowSource = lookupFieldSchema->rowSource();
|
|
if (rowSource.type()==LookupFieldSchema::RowSource::Table) {
|
|
TableSchema *lookupTable = querySchema.connection()->tableSchema( rowSource.name() );
|
|
FieldList* visibleColumns = 0;
|
|
Field *boundField = 0;
|
|
if (lookupTable
|
|
&& (uint)lookupFieldSchema->boundColumn() < lookupTable->fieldCount()
|
|
&& (visibleColumns = lookupTable->subList( lookupFieldSchema->visibleColumns() ))
|
|
&& (boundField = lookupTable->field( lookupFieldSchema->boundColumn() )))
|
|
{
|
|
//add LEFT OUTER JOIN
|
|
if (!s_additional_joins.isEmpty())
|
|
s_additional_joins += TQString::fromLatin1(" ");
|
|
TQString internalUniqueTableAlias( TQString("__kexidb_") + lookupTable->name() + "_"
|
|
+ TQString::number(internalUniqueTableAliasNumber++) );
|
|
s_additional_joins += TQString("LEFT OUTER JOIN %1 AS %2 ON %3.%4=%5.%6")
|
|
.arg(escapeIdentifier(lookupTable->name(), options.identifierEscaping))
|
|
.arg(internalUniqueTableAlias)
|
|
.arg(escapeIdentifier(f->table()->name(), options.identifierEscaping))
|
|
.arg(escapeIdentifier(f->name(), options.identifierEscaping))
|
|
.arg(internalUniqueTableAlias)
|
|
.arg(escapeIdentifier(boundField->name(), options.identifierEscaping));
|
|
|
|
//add visibleField to the list of SELECTed fields //if it is not yet present there
|
|
//not needed if (!querySchema.findTableField( visibleField->table()->name()+"."+visibleField->name() )) {
|
|
#if 0
|
|
if (!querySchema.table( visibleField->table()->name() )) {
|
|
/* not true
|
|
//table should be added after FROM
|
|
if (!s_from_additional.isEmpty())
|
|
s_from_additional += TQString::fromLatin1(", ");
|
|
s_from_additional += escapeIdentifier(visibleField->table()->name(), options.identifierEscaping);
|
|
*/
|
|
}
|
|
#endif
|
|
if (!s_additional_fields.isEmpty())
|
|
s_additional_fields += TQString::fromLatin1(", ");
|
|
// s_additional_fields += (internalUniqueTableAlias + "." //escapeIdentifier(visibleField->table()->name(), options.identifierEscaping) + "."
|
|
// escapeIdentifier(visibleField->name(), options.identifierEscaping));
|
|
//! @todo Add lookup schema option for separator other than ' ' or even option for placeholders like "Name ? ?"
|
|
//! @todo Add possibility for joining the values at client side.
|
|
s_additional_fields += visibleColumns->sqlFieldsList(
|
|
driver(), " || ' ' || ", internalUniqueTableAlias, options.identifierEscaping);
|
|
}
|
|
delete visibleColumns;
|
|
}
|
|
else if (rowSource.type()==LookupFieldSchema::RowSource::Query) {
|
|
QuerySchema *lookupQuery = querySchema.connection()->querySchema( rowSource.name() );
|
|
if (!lookupQuery) {
|
|
KexiDBWarn << "Connection::selectStatement(): !lookupQuery" << endl;
|
|
return TQString();
|
|
}
|
|
const QueryColumnInfo::Vector fieldsExpanded( lookupQuery->fieldsExpanded() );
|
|
if ((uint)lookupFieldSchema->boundColumn() >= fieldsExpanded.count()) {
|
|
KexiDBWarn << "Connection::selectStatement(): (uint)lookupFieldSchema->boundColumn() >= fieldsExpanded.count()" << endl;
|
|
return TQString();
|
|
}
|
|
QueryColumnInfo *boundColumnInfo = fieldsExpanded.at( lookupFieldSchema->boundColumn() );
|
|
if (!boundColumnInfo) {
|
|
KexiDBWarn << "Connection::selectStatement(): !boundColumnInfo" << endl;
|
|
return TQString();
|
|
}
|
|
Field *boundField = boundColumnInfo->field;
|
|
if (!boundField) {
|
|
KexiDBWarn << "Connection::selectStatement(): !boundField" << endl;
|
|
return TQString();
|
|
}
|
|
//add LEFT OUTER JOIN
|
|
if (!s_additional_joins.isEmpty())
|
|
s_additional_joins += TQString::fromLatin1(" ");
|
|
TQString internalUniqueQueryAlias(
|
|
kexidb_subquery_prefix + lookupQuery->name() + "_"
|
|
+ TQString::number(internalUniqueQueryAliasNumber++) );
|
|
s_additional_joins += TQString("LEFT OUTER JOIN (%1) AS %2 ON %3.%4=%5.%6")
|
|
.arg(selectStatement( *lookupQuery, params, options ))
|
|
.arg(internalUniqueQueryAlias)
|
|
.arg(escapeIdentifier(f->table()->name(), options.identifierEscaping))
|
|
.arg(escapeIdentifier(f->name(), options.identifierEscaping))
|
|
.arg(internalUniqueQueryAlias)
|
|
.arg(escapeIdentifier(boundColumnInfo->aliasOrName(), options.identifierEscaping));
|
|
|
|
if (!s_additional_fields.isEmpty())
|
|
s_additional_fields += TQString::fromLatin1(", ");
|
|
const TQValueList<uint> visibleColumns( lookupFieldSchema->visibleColumns() );
|
|
TQString expression;
|
|
foreach (TQValueList<uint>::ConstIterator, visibleColumnsIt, visibleColumns) {
|
|
//! @todo Add lookup schema option for separator other than ' ' or even option for placeholders like "Name ? ?"
|
|
//! @todo Add possibility for joining the values at client side.
|
|
if (fieldsExpanded.count() <= (*visibleColumnsIt)) {
|
|
KexiDBWarn << "Connection::selectStatement(): fieldsExpanded.count() <= (*visibleColumnsIt) : "
|
|
<< fieldsExpanded.count() << " <= " << *visibleColumnsIt << endl;
|
|
return TQString();
|
|
}
|
|
if (!expression.isEmpty())
|
|
expression += " || ' ' || ";
|
|
expression += (internalUniqueQueryAlias + "." +
|
|
escapeIdentifier(fieldsExpanded[*visibleColumnsIt]->aliasOrName(),
|
|
options.identifierEscaping));
|
|
}
|
|
s_additional_fields += expression;
|
|
//subqueries_for_lookup_data.append(lookupQuery);
|
|
}
|
|
else {
|
|
KexiDBWarn << "Connection::selectStatement(): unsupported row source type "
|
|
<< rowSource.typeName() << endl;
|
|
return TQString();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//add lookup fields
|
|
if (!s_additional_fields.isEmpty())
|
|
sql += (TQString::fromLatin1(", ") + s_additional_fields);
|
|
|
|
if (options.alsoRetrieveROWID) { //append rowid column
|
|
TQString s;
|
|
if (!sql.isEmpty())
|
|
s = TQString::fromLatin1(", ");
|
|
if (querySchema.masterTable())
|
|
s += (escapeIdentifier(querySchema.masterTable()->name())+".");
|
|
s += m_driver->beh->ROW_ID_FIELD_NAME;
|
|
sql += s;
|
|
}
|
|
|
|
sql.prepend("SELECT ");
|
|
TableSchema::List* tables = querySchema.tables();
|
|
if ((tables && !tables->isEmpty()) || !subqueries_for_lookup_data.isEmpty()) {
|
|
sql += TQString::fromLatin1(" FROM ");
|
|
TQString s_from;
|
|
if (tables) {
|
|
TableSchema *table;
|
|
number = 0;
|
|
for (TableSchema::ListIterator it(*tables); (table = it.current());
|
|
++it, number++)
|
|
{
|
|
if (!s_from.isEmpty())
|
|
s_from += TQString::fromLatin1(", ");
|
|
s_from += escapeIdentifier(table->name(), options.identifierEscaping);
|
|
TQString aliasString = TQString(querySchema.tableAlias(number));
|
|
if (!aliasString.isEmpty())
|
|
s_from += (TQString::fromLatin1(" AS ") + aliasString);
|
|
}
|
|
/*unused if (!s_from_additional.isEmpty()) {//additional tables list needed for lookup fields
|
|
if (!s_from.isEmpty())
|
|
s_from += TQString::fromLatin1(", ");
|
|
s_from += s_from_additional;
|
|
}*/
|
|
}
|
|
// add subqueries for lookup data
|
|
uint subqueries_for_lookup_data_counter = 0;
|
|
for (TQPtrListIterator<QuerySchema> it(subqueries_for_lookup_data);
|
|
subqueries_for_lookup_data.current(); ++it, subqueries_for_lookup_data_counter++)
|
|
{
|
|
if (!s_from.isEmpty())
|
|
s_from += TQString::fromLatin1(", ");
|
|
s_from += TQString::fromLatin1("(");
|
|
s_from += selectStatement( *it.current(), params, options );
|
|
s_from += TQString::fromLatin1(") AS %1%2")
|
|
.arg(kexidb_subquery_prefix).arg(subqueries_for_lookup_data_counter);
|
|
}
|
|
sql += s_from;
|
|
}
|
|
TQString s_where;
|
|
s_where.reserve(4096);
|
|
|
|
//JOINS
|
|
if (!s_additional_joins.isEmpty()) {
|
|
sql += TQString::fromLatin1(" ") + s_additional_joins + TQString::fromLatin1(" ");
|
|
}
|
|
|
|
//@todo: we're using WHERE for joins now; use INNER/LEFT/RIGHT JOIN later
|
|
|
|
//WHERE
|
|
Relationship *rel;
|
|
bool wasWhere = false; //for later use
|
|
for (Relationship::ListIterator it(*querySchema.relationships()); (rel = it.current()); ++it) {
|
|
if (s_where.isEmpty()) {
|
|
wasWhere = true;
|
|
}
|
|
else
|
|
s_where += TQString::fromLatin1(" AND ");
|
|
Field::Pair *pair;
|
|
TQString s_where_sub;
|
|
for (TQPtrListIterator<Field::Pair> p_it(*rel->fieldPairs()); (pair = p_it.current()); ++p_it) {
|
|
if (!s_where_sub.isEmpty())
|
|
s_where_sub += TQString::fromLatin1(" AND ");
|
|
s_where_sub += (
|
|
escapeIdentifier(pair->first->table()->name(), options.identifierEscaping) +
|
|
TQString::fromLatin1(".") +
|
|
escapeIdentifier(pair->first->name(), options.identifierEscaping) +
|
|
TQString::fromLatin1(" = ") +
|
|
escapeIdentifier(pair->second->table()->name(), options.identifierEscaping) +
|
|
TQString::fromLatin1(".") +
|
|
escapeIdentifier(pair->second->name(), options.identifierEscaping));
|
|
}
|
|
if (rel->fieldPairs()->count()>1) {
|
|
s_where_sub.prepend("(");
|
|
s_where_sub += TQString::fromLatin1(")");
|
|
}
|
|
s_where += s_where_sub;
|
|
}
|
|
//EXPLICITLY SPECIFIED WHERE EXPRESSION
|
|
if (querySchema.whereExpression()) {
|
|
QuerySchemaParameterValueListIterator paramValuesIt(*m_driver, params);
|
|
QuerySchemaParameterValueListIterator *paramValuesItPtr = params.isEmpty() ? 0 : ¶mValuesIt;
|
|
if (wasWhere) {
|
|
//TODO: () are not always needed
|
|
s_where = "(" + s_where + ") AND (" + querySchema.whereExpression()->toString(paramValuesItPtr) + ")";
|
|
}
|
|
else {
|
|
s_where = querySchema.whereExpression()->toString(paramValuesItPtr);
|
|
}
|
|
}
|
|
if (!s_where.isEmpty())
|
|
sql += TQString::fromLatin1(" WHERE ") + s_where;
|
|
//! \todo (js) add other sql parts
|
|
//(use wasWhere here)
|
|
|
|
// ORDER BY
|
|
TQString orderByString(
|
|
querySchema.orderByColumnList().toSQLString(!singleTable/*includeTableName*/,
|
|
driver(), options.identifierEscaping) );
|
|
const TQValueVector<int> pkeyFieldsOrder( querySchema.pkeyFieldsOrder() );
|
|
if (orderByString.isEmpty() && !pkeyFieldsOrder.isEmpty()) {
|
|
//add automatic ORDER BY if there is no explicity defined (especially helps when there are complex JOINs)
|
|
OrderByColumnList automaticPKOrderBy;
|
|
const QueryColumnInfo::Vector fieldsExpanded( querySchema.fieldsExpanded() );
|
|
foreach (TQValueVector<int>::ConstIterator, it, pkeyFieldsOrder) {
|
|
if ((*it) < 0) // no field mentioned in this query
|
|
continue;
|
|
if ((*it) >= (int)fieldsExpanded.count()) {
|
|
KexiDBWarn << "Connection::selectStatement(): ORDER BY: (*it) >= fieldsExpanded.count() - "
|
|
<< (*it) << " >= " << fieldsExpanded.count() << endl;
|
|
continue;
|
|
}
|
|
QueryColumnInfo *ci = fieldsExpanded[ *it ];
|
|
automaticPKOrderBy.appendColumn( *ci );
|
|
}
|
|
orderByString = automaticPKOrderBy.toSQLString(!singleTable/*includeTableName*/,
|
|
driver(), options.identifierEscaping);
|
|
}
|
|
if (!orderByString.isEmpty())
|
|
sql += (" ORDER BY " + orderByString);
|
|
|
|
//KexiDBDbg << sql << endl;
|
|
return sql;
|
|
}
|
|
|
|
TQString Connection::selectStatement( KexiDB::TableSchema& tableSchema,
|
|
const SelectStatementOptions& options) const
|
|
{
|
|
return selectStatement( *tableSchema.query(), options );
|
|
}
|
|
|
|
Field* Connection::findSystemFieldName(KexiDB::FieldList* fieldlist)
|
|
{
|
|
Field *f = fieldlist->fields()->first();
|
|
while (f) {
|
|
if (m_driver->isSystemFieldName( f->name() ))
|
|
return f;
|
|
f = fieldlist->fields()->next();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
TQ_ULLONG Connection::lastInsertedAutoIncValue(const TQString& aiFieldName, const TQString& tableName,
|
|
TQ_ULLONG* ROWID)
|
|
{
|
|
TQ_ULLONG row_id = drv_lastInsertRowID();
|
|
if (ROWID)
|
|
*ROWID = row_id;
|
|
if (m_driver->beh->ROW_ID_FIELD_RETURNS_LAST_AUTOINCREMENTED_VALUE) {
|
|
return row_id;
|
|
}
|
|
RowData rdata;
|
|
if (row_id<=0 || true!=querySingleRecord(
|
|
TQString::fromLatin1("SELECT ") + tableName + TQString::fromLatin1(".") + aiFieldName + TQString::fromLatin1(" FROM ") + tableName
|
|
+ TQString::fromLatin1(" WHERE ") + m_driver->beh->ROW_ID_FIELD_NAME + TQString::fromLatin1("=") + TQString::number(row_id), rdata))
|
|
{
|
|
// KexiDBDbg << "Connection::lastInsertedAutoIncValue(): row_id<=0 || true!=querySingleRecord()" << endl;
|
|
return (TQ_ULLONG)-1; //ULL;
|
|
}
|
|
return rdata[0].toULongLong();
|
|
}
|
|
|
|
TQ_ULLONG Connection::lastInsertedAutoIncValue(const TQString& aiFieldName,
|
|
const KexiDB::TableSchema& table, TQ_ULLONG* ROWID)
|
|
{
|
|
return lastInsertedAutoIncValue(aiFieldName,table.name(), ROWID);
|
|
}
|
|
|
|
//! Creates a Field list for kexi__fields, for sanity. Used by createTable()
|
|
static FieldList* createFieldListForKexi__Fields(TableSchema *kexi__fieldsSchema)
|
|
{
|
|
if (!kexi__fieldsSchema)
|
|
return 0;
|
|
return kexi__fieldsSchema->subList(
|
|
"t_id",
|
|
"f_type",
|
|
"f_name",
|
|
"f_length",
|
|
"f_precision",
|
|
"f_constraints",
|
|
"f_options",
|
|
"f_default",
|
|
"f_order",
|
|
"f_caption",
|
|
"f_help"
|
|
);
|
|
}
|
|
|
|
//! builds a list of values for field's \a f properties. Used by createTable().
|
|
void buildValuesForKexi__Fields(TQValueList<TQVariant>& vals, Field* f)
|
|
{
|
|
vals.clear();
|
|
vals
|
|
<< TQVariant(f->table()->id())
|
|
<< TQVariant(f->type())
|
|
<< TQVariant(f->name())
|
|
<< TQVariant(f->isFPNumericType() ? f->scale() : f->length())
|
|
<< TQVariant(f->isFPNumericType() ? f->precision() : 0)
|
|
<< TQVariant(f->constraints())
|
|
<< TQVariant(f->options())
|
|
// KexiDB::variantToString() is needed here because the value can be of any TQVariant type,
|
|
// depending on f->type()
|
|
<< (f->defaultValue().isNull()
|
|
? TQVariant() : TQVariant(KexiDB::variantToString( f->defaultValue() )))
|
|
<< TQVariant(f->order())
|
|
<< TQVariant(f->caption())
|
|
<< TQVariant(f->description());
|
|
}
|
|
|
|
bool Connection::storeMainFieldSchema(Field *field)
|
|
{
|
|
if (!field || !field->table())
|
|
return false;
|
|
FieldList *fl = createFieldListForKexi__Fields(d->tables_byname["kexi__fields"]);
|
|
if (!fl)
|
|
return false;
|
|
|
|
TQValueList<TQVariant> vals;
|
|
buildValuesForKexi__Fields(vals, field);
|
|
TQValueList<TQVariant>::ConstIterator valsIt = vals.constBegin();
|
|
Field *f;
|
|
bool first = true;
|
|
TQString sql = "UPDATE kexi__fields SET ";
|
|
for (Field::ListIterator it( fl->fieldsIterator() ); (f = it.current()); ++it, ++valsIt) {
|
|
sql.append( (first ? TQString() : TQString(", ")) +
|
|
f->name() + "=" + m_driver->valueToSQL( f, *valsIt ) );
|
|
if (first)
|
|
first = false;
|
|
}
|
|
delete fl;
|
|
|
|
sql.append(TQString(" WHERE t_id=") + TQString::number( field->table()->id() )
|
|
+ " AND f_name=" + m_driver->valueToSQL( Field::Text, field->name() ) );
|
|
return executeSQL( sql );
|
|
}
|
|
|
|
#define createTable_ERR \
|
|
{ KexiDBDbg << "Connection::createTable(): ERROR!" <<endl; \
|
|
setError(this, i18n("Creating table failed.")); \
|
|
rollbackAutoCommitTransaction(tg.transaction()); \
|
|
return false; }
|
|
//setError( errorNum(), i18n("Creating table failed.") + " " + errorMsg());
|
|
|
|
//! Creates a table according to the given schema
|
|
/*! Creates a table according to the given TableSchema, adding the table and
|
|
column definitions to kexi__* tables. Checks that a database is in use,
|
|
that the table name is not that of a system table, and that the schema
|
|
defines at least one column.
|
|
If the table exists, and replaceExisting is true, the table is replaced.
|
|
Otherwise, the table is not replaced.
|
|
*/
|
|
bool Connection::createTable( KexiDB::TableSchema* tableSchema, bool replaceExisting )
|
|
{
|
|
if (!tableSchema || !checkIsDatabaseUsed())
|
|
return false;
|
|
|
|
//check if there are any fields
|
|
if (tableSchema->fieldCount()<1) {
|
|
clearError();
|
|
setError(ERR_CANNOT_CREATE_EMPTY_OBJECT, i18n("Cannot create table without fields."));
|
|
return false;
|
|
}
|
|
const bool internalTable = dynamic_cast<InternalTableSchema*>(tableSchema);
|
|
|
|
const TQString &tableName = tableSchema->name().lower();
|
|
|
|
if (!internalTable) {
|
|
if (m_driver->isSystemObjectName( tableName )) {
|
|
clearError();
|
|
setError(ERR_SYSTEM_NAME_RESERVED, i18n("System name \"%1\" cannot be used as table name.")
|
|
.arg(tableSchema->name()));
|
|
return false;
|
|
}
|
|
|
|
Field *sys_field = findSystemFieldName(tableSchema);
|
|
if (sys_field) {
|
|
clearError();
|
|
setError(ERR_SYSTEM_NAME_RESERVED,
|
|
i18n("System name \"%1\" cannot be used as one of fields in \"%2\" table.")
|
|
.arg(sys_field->name()).arg(tableName));
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool previousSchemaStillKept = false;
|
|
|
|
KexiDB::TableSchema *existingTable = 0;
|
|
if (replaceExisting) {
|
|
//get previous table (do not retrieve, though)
|
|
existingTable = d->tables_byname[tableName];
|
|
if (existingTable) {
|
|
if (existingTable == tableSchema) {
|
|
clearError();
|
|
setError(ERR_OBJECT_EXISTS,
|
|
i18n("Could not create the same table \"%1\" twice.").arg(tableSchema->name()) );
|
|
return false;
|
|
}
|
|
//TODO(js): update any structure (e.g. queries) that depend on this table!
|
|
if (existingTable->id()>0)
|
|
tableSchema->m_id = existingTable->id(); //copy id from existing table
|
|
previousSchemaStillKept = true;
|
|
if (!dropTable( existingTable, false /*alsoRemoveSchema*/ ))
|
|
return false;
|
|
}
|
|
}
|
|
else {
|
|
if (this->tableSchema( tableSchema->name() ) != 0) {
|
|
clearError();
|
|
setError(ERR_OBJECT_EXISTS, i18n("Table \"%1\" already exists.").arg(tableSchema->name()) );
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/* if (replaceExisting) {
|
|
//get previous table (do not retrieve, though)
|
|
KexiDB::TableSchema *existingTable = d->tables_byname.take(name);
|
|
if (oldTable) {
|
|
}*/
|
|
|
|
TransactionGuard tg;
|
|
if (!beginAutoCommitTransaction(tg))
|
|
return false;
|
|
|
|
if (!drv_createTable(*tableSchema))
|
|
createTable_ERR;
|
|
|
|
//add schema data to kexi__* tables
|
|
if (!internalTable) {
|
|
//update kexi__objects
|
|
if (!storeObjectSchemaData( *tableSchema, true ))
|
|
createTable_ERR;
|
|
|
|
TableSchema *ts = d->tables_byname["kexi__fields"];
|
|
if (!ts)
|
|
return false;
|
|
//for sanity: remove field info (if any) for this table id
|
|
if (!KexiDB::deleteRow(*this, ts, "t_id", tableSchema->id()))
|
|
return false;
|
|
|
|
FieldList *fl = createFieldListForKexi__Fields(d->tables_byname["kexi__fields"]);
|
|
if (!fl)
|
|
return false;
|
|
|
|
// int order = 0;
|
|
Field *f;
|
|
for (Field::ListIterator it( *tableSchema->fields() ); (f = it.current()); ++it/*, order++*/) {
|
|
TQValueList<TQVariant> vals;
|
|
buildValuesForKexi__Fields(vals, f);
|
|
if (!insertRecord(*fl, vals ))
|
|
createTable_ERR;
|
|
}
|
|
delete fl;
|
|
|
|
if (!storeExtendedTableSchemaData(*tableSchema))
|
|
createTable_ERR;
|
|
}
|
|
|
|
//finally:
|
|
/* if (replaceExisting) {
|
|
if (existingTable) {
|
|
d->tables.take(existingTable->id());
|
|
delete existingTable;
|
|
}
|
|
}*/
|
|
|
|
bool res = commitAutoCommitTransaction(tg.transaction());
|
|
|
|
if (res) {
|
|
if (internalTable) {
|
|
//insert the internal table into structures
|
|
insertInternalTableSchema(tableSchema);
|
|
}
|
|
else {
|
|
if (previousSchemaStillKept) {
|
|
//remove previous table schema
|
|
removeTableSchemaInternal(tableSchema);
|
|
}
|
|
//store one schema object locally:
|
|
d->tables.insert(tableSchema->id(), tableSchema);
|
|
d->tables_byname.insert(tableSchema->name().lower(), tableSchema);
|
|
}
|
|
//ok, this table is not created by the connection
|
|
tableSchema->m_conn = this;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
void Connection::removeTableSchemaInternal(TableSchema *tableSchema)
|
|
{
|
|
d->tables_byname.remove(tableSchema->name());
|
|
d->tables.remove(tableSchema->id());
|
|
}
|
|
|
|
bool Connection::removeObject( uint objId )
|
|
{
|
|
clearError();
|
|
//remove table schema from kexi__* tables
|
|
if (!KexiDB::deleteRow(*this, d->tables_byname["kexi__objects"], "o_id", objId) //schema entry
|
|
|| !KexiDB::deleteRow(*this, d->tables_byname["kexi__objectdata"], "o_id", objId)) {//data blocks
|
|
setError(ERR_DELETE_SERVER_ERROR, i18n("Could not remove object's data."));
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool Connection::drv_dropTable( const TQString& name )
|
|
{
|
|
m_sql = "DROP TABLE " + escapeIdentifier(name);
|
|
return executeSQL(m_sql);
|
|
}
|
|
|
|
//! Drops a table corresponding to the name in the given schema
|
|
/*! Drops a table according to the name given by the TableSchema, removing the
|
|
table and column definitions to kexi__* tables. Checks first that the
|
|
table is not a system table.
|
|
|
|
TODO: Should check that a database is currently in use? (c.f. createTable)
|
|
*/
|
|
tristate Connection::dropTable( KexiDB::TableSchema* tableSchema )
|
|
{
|
|
return dropTable( tableSchema, true );
|
|
}
|
|
|
|
tristate Connection::dropTable( KexiDB::TableSchema* tableSchema, bool alsoRemoveSchema)
|
|
{
|
|
// Each SQL identifier needs to be escaped in the generated query.
|
|
clearError();
|
|
if (!tableSchema)
|
|
return false;
|
|
|
|
TQString errmsg(i18n("Table \"%1\" cannot be removed.\n"));
|
|
//be sure that we handle the correct TableSchema object:
|
|
if (tableSchema->id() < 0
|
|
|| this->tableSchema(tableSchema->name())!=tableSchema
|
|
|| this->tableSchema(tableSchema->id())!=tableSchema)
|
|
{
|
|
setError(ERR_OBJECT_NOT_FOUND, errmsg.arg(tableSchema->name())
|
|
+i18n("Unexpected name or identifier."));
|
|
return false;
|
|
}
|
|
|
|
tristate res = closeAllTableSchemaChangeListeners(*tableSchema);
|
|
if (true!=res)
|
|
return res;
|
|
|
|
//sanity checks:
|
|
if (m_driver->isSystemObjectName( tableSchema->name() )) {
|
|
setError(ERR_SYSTEM_NAME_RESERVED, errmsg.arg(tableSchema->name()) + d->strItIsASystemObject());
|
|
return false;
|
|
}
|
|
|
|
TransactionGuard tg;
|
|
if (!beginAutoCommitTransaction(tg))
|
|
return false;
|
|
|
|
//for sanity we're checking if this table exists physically
|
|
if (drv_containsTable(tableSchema->name())) {
|
|
if (!drv_dropTable(tableSchema->name()))
|
|
return false;
|
|
}
|
|
|
|
TableSchema *ts = d->tables_byname["kexi__fields"];
|
|
if (!KexiDB::deleteRow(*this, ts, "t_id", tableSchema->id())) //field entries
|
|
return false;
|
|
|
|
//remove table schema from kexi__objects table
|
|
if (!removeObject( tableSchema->id() )) {
|
|
return false;
|
|
}
|
|
|
|
if (alsoRemoveSchema) {
|
|
//! \todo js: update any structure (e.g. queries) that depend on this table!
|
|
tristate res = removeDataBlock( tableSchema->id(), "extended_schema");
|
|
if (!res)
|
|
return false;
|
|
removeTableSchemaInternal(tableSchema);
|
|
}
|
|
return commitAutoCommitTransaction(tg.transaction());
|
|
}
|
|
|
|
tristate Connection::dropTable( const TQString& table )
|
|
{
|
|
clearError();
|
|
TableSchema* ts = tableSchema( table );
|
|
if (!ts) {
|
|
setError(ERR_OBJECT_NOT_FOUND, i18n("Table \"%1\" does not exist.")
|
|
.arg(table));
|
|
return false;
|
|
}
|
|
return dropTable(ts);
|
|
}
|
|
|
|
tristate Connection::alterTable( TableSchema& tableSchema, TableSchema& newTableSchema )
|
|
{
|
|
clearError();
|
|
tristate res = closeAllTableSchemaChangeListeners(tableSchema);
|
|
if (true!=res)
|
|
return res;
|
|
|
|
if (&tableSchema == &newTableSchema) {
|
|
setError(ERR_OBJECT_THE_SAME, i18n("Could not alter table \"%1\" using the same table.")
|
|
.arg(tableSchema.name()));
|
|
return false;
|
|
}
|
|
//TODO(js): implement real altering
|
|
//TODO(js): update any structure (e.g. query) that depend on this table!
|
|
bool ok, empty;
|
|
#if 0//TODO ucomment:
|
|
empty = isEmpty( tableSchema, ok ) && ok;
|
|
#else
|
|
empty = true;
|
|
#endif
|
|
if (empty) {
|
|
ok = createTable(&newTableSchema, true/*replace*/);
|
|
}
|
|
return ok;
|
|
}
|
|
|
|
bool Connection::alterTableName(TableSchema& tableSchema, const TQString& newName, bool replace)
|
|
{
|
|
clearError();
|
|
if (&tableSchema!=d->tables[tableSchema.id()]) {
|
|
setError(ERR_OBJECT_NOT_FOUND, i18n("Unknown table \"%1\"").arg(tableSchema.name()));
|
|
return false;
|
|
}
|
|
if (newName.isEmpty() || !KexiUtils::isIdentifier(newName)) {
|
|
setError(ERR_INVALID_IDENTIFIER, i18n("Invalid table name \"%1\"").arg(newName));
|
|
return false;
|
|
}
|
|
const TQString oldTableName = tableSchema.name();
|
|
const TQString newTableName = newName.lower().stripWhiteSpace();
|
|
if (oldTableName.lower().stripWhiteSpace() == newTableName) {
|
|
setError(ERR_OBJECT_THE_SAME, i18n("Could rename table \"%1\" using the same name.")
|
|
.arg(newTableName));
|
|
return false;
|
|
}
|
|
//TODO: alter table name for server DB backends!
|
|
//TODO: what about objects (queries/forms) that use old name?
|
|
//TODO
|
|
TableSchema *tableToReplace = this->tableSchema( newName );
|
|
const bool destTableExists = tableToReplace != 0;
|
|
const int origID = destTableExists ? tableToReplace->id() : -1; //will be reused in the new table
|
|
if (!replace && destTableExists) {
|
|
setError(ERR_OBJECT_EXISTS,
|
|
i18n("Could not rename table \"%1\" to \"%2\". Table \"%3\" already exists.")
|
|
.arg(tableSchema.name()).arg(newName).arg(newName));
|
|
return false;
|
|
}
|
|
|
|
//helper:
|
|
#define alterTableName_ERR \
|
|
tableSchema.setName(oldTableName) //restore old name
|
|
|
|
TransactionGuard tg;
|
|
if (!beginAutoCommitTransaction(tg))
|
|
return false;
|
|
|
|
// drop the table replaced (with schema)
|
|
if (destTableExists) {
|
|
if (!replace) {
|
|
return false;
|
|
}
|
|
if (!dropTable( newName )) {
|
|
return false;
|
|
}
|
|
|
|
// the new table owns the previous table's id:
|
|
if (!executeSQL(TQString::fromLatin1("UPDATE kexi__objects SET o_id=%1 WHERE o_id=%2 AND o_type=%3")
|
|
.arg(origID).arg(tableSchema.id()).arg((int)TableObjectType)))
|
|
{
|
|
return false;
|
|
}
|
|
if (!executeSQL(TQString::fromLatin1("UPDATE kexi__fields SET t_id=%1 WHERE t_id=%2")
|
|
.arg(origID).arg(tableSchema.id())))
|
|
{
|
|
return false;
|
|
}
|
|
d->tables.take(tableSchema.id());
|
|
d->tables.insert(origID, &tableSchema);
|
|
//maintain table ID
|
|
tableSchema.m_id = origID;
|
|
}
|
|
|
|
if (!drv_alterTableName(tableSchema, newTableName)) {
|
|
alterTableName_ERR;
|
|
return false;
|
|
}
|
|
|
|
// Update kexi__objects
|
|
//TODO
|
|
if (!executeSQL(TQString::fromLatin1("UPDATE kexi__objects SET o_name=%1 WHERE o_id=%2")
|
|
.arg(m_driver->escapeString(tableSchema.name())).arg(tableSchema.id())))
|
|
{
|
|
alterTableName_ERR;
|
|
return false;
|
|
}
|
|
//TODO what about caption?
|
|
|
|
//restore old name: it will be changed soon!
|
|
tableSchema.setName(oldTableName);
|
|
|
|
if (!commitAutoCommitTransaction(tg.transaction())) {
|
|
alterTableName_ERR;
|
|
return false;
|
|
}
|
|
|
|
//update tableSchema:
|
|
d->tables_byname.take(tableSchema.name());
|
|
tableSchema.setName(newTableName);
|
|
d->tables_byname.insert(tableSchema.name(), &tableSchema);
|
|
return true;
|
|
}
|
|
|
|
bool Connection::drv_alterTableName(TableSchema& tableSchema, const TQString& newName)
|
|
{
|
|
const TQString oldTableName = tableSchema.name();
|
|
tableSchema.setName(newName);
|
|
|
|
if (!executeSQL(TQString::fromLatin1("ALTER TABLE %1 RENAME TO %2")
|
|
.arg(escapeIdentifier(oldTableName)).arg(escapeIdentifier(newName))))
|
|
{
|
|
tableSchema.setName(oldTableName); //restore old name
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool Connection::dropQuery( KexiDB::QuerySchema* querySchema )
|
|
{
|
|
clearError();
|
|
if (!querySchema)
|
|
return false;
|
|
|
|
TransactionGuard tg;
|
|
if (!beginAutoCommitTransaction(tg))
|
|
return false;
|
|
|
|
/* TableSchema *ts = d->tables_byname["kexi__querydata"];
|
|
if (!KexiDB::deleteRow(*this, ts, "q_id", querySchema->id()))
|
|
return false;
|
|
|
|
ts = d->tables_byname["kexi__queryfields"];
|
|
if (!KexiDB::deleteRow(*this, ts, "q_id", querySchema->id()))
|
|
return false;
|
|
|
|
ts = d->tables_byname["kexi__querytables"];
|
|
if (!KexiDB::deleteRow(*this, ts, "q_id", querySchema->id()))
|
|
return false;*/
|
|
|
|
//remove query schema from kexi__objects table
|
|
if (!removeObject( querySchema->id() )) {
|
|
return false;
|
|
}
|
|
|
|
//TODO(js): update any structure that depend on this table!
|
|
d->queries_byname.remove(querySchema->name());
|
|
d->queries.remove(querySchema->id());
|
|
|
|
return commitAutoCommitTransaction(tg.transaction());
|
|
}
|
|
|
|
bool Connection::dropQuery( const TQString& query )
|
|
{
|
|
clearError();
|
|
QuerySchema* qs = querySchema( query );
|
|
if (!qs) {
|
|
setError(ERR_OBJECT_NOT_FOUND, i18n("Query \"%1\" does not exist.")
|
|
.arg(query));
|
|
return false;
|
|
}
|
|
return dropQuery(qs);
|
|
}
|
|
|
|
bool Connection::drv_createTable( const KexiDB::TableSchema& tableSchema )
|
|
{
|
|
m_sql = createTableStatement(tableSchema);
|
|
KexiDBDbg<<"******** "<<m_sql<<endl;
|
|
return executeSQL(m_sql);
|
|
}
|
|
|
|
bool Connection::drv_createTable( const TQString& tableSchemaName )
|
|
{
|
|
TableSchema *ts = d->tables_byname[tableSchemaName];
|
|
if (!ts)
|
|
return false;
|
|
return drv_createTable(*ts);
|
|
}
|
|
|
|
bool Connection::beginAutoCommitTransaction(TransactionGuard &tg)
|
|
{
|
|
if ((m_driver->d->features & Driver::IgnoreTransactions)
|
|
|| !d->autoCommit)
|
|
{
|
|
tg.setTransaction( Transaction() );
|
|
return true;
|
|
}
|
|
|
|
// commit current transaction (if present) for drivers
|
|
// that allow single transaction per connection
|
|
if (m_driver->d->features & Driver::SingleTransactions) {
|
|
if (d->default_trans_started_inside) //only commit internally started transaction
|
|
if (!commitTransaction(d->default_trans, true)) {
|
|
tg.setTransaction( Transaction() );
|
|
return false; //we have a real error
|
|
}
|
|
|
|
d->default_trans_started_inside = d->default_trans.isNull();
|
|
if (!d->default_trans_started_inside) {
|
|
tg.setTransaction( d->default_trans );
|
|
tg.doNothing();
|
|
return true; //reuse externally started transaction
|
|
}
|
|
}
|
|
else if (!(m_driver->d->features & Driver::MultipleTransactions)) {
|
|
tg.setTransaction( Transaction() );
|
|
return true; //no trans. supported at all - just return
|
|
}
|
|
tg.setTransaction( beginTransaction() );
|
|
return !error();
|
|
}
|
|
|
|
bool Connection::commitAutoCommitTransaction(const Transaction& trans)
|
|
{
|
|
if (m_driver->d->features & Driver::IgnoreTransactions)
|
|
return true;
|
|
if (trans.isNull() || !m_driver->transactionsSupported())
|
|
return true;
|
|
if (m_driver->d->features & Driver::SingleTransactions) {
|
|
if (!d->default_trans_started_inside) //only commit internally started transaction
|
|
return true; //give up
|
|
}
|
|
return commitTransaction(trans, true);
|
|
}
|
|
|
|
bool Connection::rollbackAutoCommitTransaction(const Transaction& trans)
|
|
{
|
|
if (trans.isNull() || !m_driver->transactionsSupported())
|
|
return true;
|
|
return rollbackTransaction(trans);
|
|
}
|
|
|
|
#define SET_ERR_TRANS_NOT_SUPP \
|
|
{ setError(ERR_UNSUPPORTED_DRV_FEATURE, \
|
|
i18n("Transactions are not supported for \"%1\" driver.").arg(m_driver->name() )); }
|
|
|
|
#define SET_BEGIN_TR_ERROR \
|
|
{ if (!error()) \
|
|
setError(ERR_ROLLBACK_OR_COMMIT_TRANSACTION, i18n("Begin transaction failed")); }
|
|
|
|
Transaction Connection::beginTransaction()
|
|
{
|
|
if (!checkIsDatabaseUsed())
|
|
return Transaction::null;
|
|
Transaction trans;
|
|
if (m_driver->d->features & Driver::IgnoreTransactions) {
|
|
//we're creating dummy transaction data here,
|
|
//so it will look like active
|
|
trans.m_data = new TransactionData(this);
|
|
d->transactions.append(trans);
|
|
return trans;
|
|
}
|
|
if (m_driver->d->features & Driver::SingleTransactions) {
|
|
if (d->default_trans.active()) {
|
|
setError(ERR_TRANSACTION_ACTIVE, i18n("Transaction already started.") );
|
|
return Transaction::null;
|
|
}
|
|
if (!(trans.m_data = drv_beginTransaction())) {
|
|
SET_BEGIN_TR_ERROR;
|
|
return Transaction::null;
|
|
}
|
|
d->default_trans = trans;
|
|
d->transactions.append(trans);
|
|
return d->default_trans;
|
|
}
|
|
if (m_driver->d->features & Driver::MultipleTransactions) {
|
|
if (!(trans.m_data = drv_beginTransaction())) {
|
|
SET_BEGIN_TR_ERROR;
|
|
return Transaction::null;
|
|
}
|
|
d->transactions.append(trans);
|
|
return trans;
|
|
}
|
|
|
|
SET_ERR_TRANS_NOT_SUPP;
|
|
return Transaction::null;
|
|
}
|
|
|
|
bool Connection::commitTransaction(const Transaction trans, bool ignore_inactive)
|
|
{
|
|
if (!isDatabaseUsed())
|
|
return false;
|
|
// if (!checkIsDatabaseUsed())
|
|
//return false;
|
|
if ( !m_driver->transactionsSupported()
|
|
&& !(m_driver->d->features & Driver::IgnoreTransactions))
|
|
{
|
|
SET_ERR_TRANS_NOT_SUPP;
|
|
return false;
|
|
}
|
|
Transaction t = trans;
|
|
if (!t.active()) { //try default tr.
|
|
if (!d->default_trans.active()) {
|
|
if (ignore_inactive)
|
|
return true;
|
|
clearError();
|
|
setError(ERR_NO_TRANSACTION_ACTIVE, i18n("Transaction not started.") );
|
|
return false;
|
|
}
|
|
t = d->default_trans;
|
|
d->default_trans = Transaction::null; //now: no default tr.
|
|
}
|
|
bool ret = true;
|
|
if (! (m_driver->d->features & Driver::IgnoreTransactions) )
|
|
ret = drv_commitTransaction(t.m_data);
|
|
if (t.m_data)
|
|
t.m_data->m_active = false; //now this transaction if inactive
|
|
if (!d->dont_remove_transactions) //true=transaction obj will be later removed from list
|
|
d->transactions.remove(t);
|
|
if (!ret && !error())
|
|
setError(ERR_ROLLBACK_OR_COMMIT_TRANSACTION, i18n("Error on commit transaction"));
|
|
return ret;
|
|
}
|
|
|
|
bool Connection::rollbackTransaction(const Transaction trans, bool ignore_inactive)
|
|
{
|
|
if (!isDatabaseUsed())
|
|
return false;
|
|
// if (!checkIsDatabaseUsed())
|
|
// return false;
|
|
if ( !m_driver->transactionsSupported()
|
|
&& !(m_driver->d->features & Driver::IgnoreTransactions))
|
|
{
|
|
SET_ERR_TRANS_NOT_SUPP;
|
|
return false;
|
|
}
|
|
Transaction t = trans;
|
|
if (!t.active()) { //try default tr.
|
|
if (!d->default_trans.active()) {
|
|
if (ignore_inactive)
|
|
return true;
|
|
clearError();
|
|
setError(ERR_NO_TRANSACTION_ACTIVE, i18n("Transaction not started.") );
|
|
return false;
|
|
}
|
|
t = d->default_trans;
|
|
d->default_trans = Transaction::null; //now: no default tr.
|
|
}
|
|
bool ret = true;
|
|
if (! (m_driver->d->features & Driver::IgnoreTransactions) )
|
|
ret = drv_rollbackTransaction(t.m_data);
|
|
if (t.m_data)
|
|
t.m_data->m_active = false; //now this transaction if inactive
|
|
if (!d->dont_remove_transactions) //true=transaction obj will be later removed from list
|
|
d->transactions.remove(t);
|
|
if (!ret && !error())
|
|
setError(ERR_ROLLBACK_OR_COMMIT_TRANSACTION, i18n("Error on rollback transaction"));
|
|
return ret;
|
|
}
|
|
|
|
#undef SET_ERR_TRANS_NOT_SUPP
|
|
#undef SET_BEGIN_TR_ERROR
|
|
|
|
/*bool Connection::duringTransaction()
|
|
{
|
|
return drv_duringTransaction();
|
|
}*/
|
|
|
|
Transaction& Connection::defaultTransaction() const
|
|
{
|
|
return d->default_trans;
|
|
}
|
|
|
|
void Connection::setDefaultTransaction(const Transaction& trans)
|
|
{
|
|
if (!isDatabaseUsed())
|
|
return;
|
|
// if (!checkIsDatabaseUsed())
|
|
// return;
|
|
if ( !(m_driver->d->features & Driver::IgnoreTransactions)
|
|
&& (!trans.active() || !m_driver->transactionsSupported()) )
|
|
{
|
|
return;
|
|
}
|
|
d->default_trans = trans;
|
|
}
|
|
|
|
const TQValueList<Transaction>& Connection::transactions()
|
|
{
|
|
return d->transactions;
|
|
}
|
|
|
|
bool Connection::autoCommit() const
|
|
{
|
|
return d->autoCommit;
|
|
}
|
|
|
|
bool Connection::setAutoCommit(bool on)
|
|
{
|
|
if (d->autoCommit == on || m_driver->d->features & Driver::IgnoreTransactions)
|
|
return true;
|
|
if (!drv_setAutoCommit(on))
|
|
return false;
|
|
d->autoCommit = on;
|
|
return true;
|
|
}
|
|
|
|
TransactionData* Connection::drv_beginTransaction()
|
|
{
|
|
TQString old_sql = m_sql; //don't
|
|
if (!executeSQL( "BEGIN" ))
|
|
return 0;
|
|
return new TransactionData(this);
|
|
}
|
|
|
|
bool Connection::drv_commitTransaction(TransactionData *)
|
|
{
|
|
return executeSQL( "COMMIT" );
|
|
}
|
|
|
|
bool Connection::drv_rollbackTransaction(TransactionData *)
|
|
{
|
|
return executeSQL( "ROLLBACK" );
|
|
}
|
|
|
|
bool Connection::drv_setAutoCommit(bool /*on*/)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
Cursor* Connection::executeQuery( const TQString& statement, uint cursor_options )
|
|
{
|
|
if (statement.isEmpty())
|
|
return 0;
|
|
Cursor *c = prepareQuery( statement, cursor_options );
|
|
if (!c)
|
|
return 0;
|
|
if (!c->open()) {//err - kill that
|
|
setError(c);
|
|
delete c;
|
|
return 0;
|
|
}
|
|
return c;
|
|
}
|
|
|
|
Cursor* Connection::executeQuery( QuerySchema& query, const TQValueList<TQVariant>& params,
|
|
uint cursor_options )
|
|
{
|
|
Cursor *c = prepareQuery( query, params, cursor_options );
|
|
if (!c)
|
|
return 0;
|
|
if (!c->open()) {//err - kill that
|
|
setError(c);
|
|
delete c;
|
|
return 0;
|
|
}
|
|
return c;
|
|
}
|
|
|
|
Cursor* Connection::executeQuery( QuerySchema& query, uint cursor_options )
|
|
{
|
|
return executeQuery(query, TQValueList<TQVariant>(), cursor_options);
|
|
}
|
|
|
|
Cursor* Connection::executeQuery( TableSchema& table, uint cursor_options )
|
|
{
|
|
return executeQuery( *table.query(), cursor_options );
|
|
}
|
|
|
|
Cursor* Connection::prepareQuery( TableSchema& table, uint cursor_options )
|
|
{
|
|
return prepareQuery( *table.query(), cursor_options );
|
|
}
|
|
|
|
Cursor* Connection::prepareQuery( QuerySchema& query, const TQValueList<TQVariant>& params,
|
|
uint cursor_options )
|
|
{
|
|
Cursor* cursor = prepareQuery(query, cursor_options);
|
|
if (cursor)
|
|
cursor->setQueryParameters(params);
|
|
return cursor;
|
|
}
|
|
|
|
bool Connection::deleteCursor(Cursor *cursor)
|
|
{
|
|
if (!cursor)
|
|
return false;
|
|
if (cursor->connection()!=this) {//illegal call
|
|
KexiDBWarn << "Connection::deleteCursor(): Cannot delete the cursor not owned by the same connection!" << endl;
|
|
return false;
|
|
}
|
|
const bool ret = cursor->close();
|
|
delete cursor;
|
|
return ret;
|
|
}
|
|
|
|
bool Connection::setupObjectSchemaData( const RowData &data, SchemaData &sdata )
|
|
{
|
|
//not found: retrieve schema
|
|
/* KexiDB::Cursor *cursor;
|
|
if (!(cursor = executeQuery( TQString("select * from kexi__objects where o_id='%1'").arg(objId) )))
|
|
return false;
|
|
if (!cursor->moveFirst()) {
|
|
deleteCursor(cursor);
|
|
return false;
|
|
}*/
|
|
//if (!ok) {
|
|
//deleteCursor(cursor);
|
|
//return 0;
|
|
// }
|
|
bool ok;
|
|
sdata.m_id = data[0].toInt(&ok);
|
|
if (!ok) {
|
|
return false;
|
|
}
|
|
sdata.m_name = data[2].toString();
|
|
if (!KexiUtils::isIdentifier( sdata.m_name )) {
|
|
setError(ERR_INVALID_IDENTIFIER, i18n("Invalid object name \"%1\"").arg(sdata.m_name));
|
|
return false;
|
|
}
|
|
sdata.m_caption = data[3].toString();
|
|
sdata.m_desc = data[4].toString();
|
|
|
|
// KexiDBDbg<<"@@@ Connection::setupObjectSchemaData() == " << sdata.schemaDataDebugString() << endl;
|
|
return true;
|
|
}
|
|
|
|
tristate Connection::loadObjectSchemaData( int objectID, SchemaData &sdata )
|
|
{
|
|
RowData data;
|
|
if (true!=querySingleRecord(TQString::fromLatin1(
|
|
"SELECT o_id, o_type, o_name, o_caption, o_desc FROM kexi__objects WHERE o_id=%1")
|
|
.arg(objectID), data))
|
|
return cancelled;
|
|
return setupObjectSchemaData( data, sdata );
|
|
}
|
|
|
|
tristate Connection::loadObjectSchemaData( int objectType, const TQString& objectName, SchemaData &sdata )
|
|
{
|
|
RowData data;
|
|
if (true!=querySingleRecord(TQString::fromLatin1("SELECT o_id, o_type, o_name, o_caption, o_desc "
|
|
"FROM kexi__objects WHERE o_type=%1 AND lower(o_name)=%2")
|
|
.arg(objectType).arg(m_driver->valueToSQL(Field::Text, objectName.lower())), data))
|
|
return cancelled;
|
|
return setupObjectSchemaData( data, sdata );
|
|
}
|
|
|
|
bool Connection::storeObjectSchemaData( SchemaData &sdata, bool newObject )
|
|
{
|
|
TableSchema *ts = d->tables_byname["kexi__objects"];
|
|
if (!ts)
|
|
return false;
|
|
if (newObject) {
|
|
int existingID;
|
|
if (true == querySingleNumber(TQString::fromLatin1(
|
|
"SELECT o_id FROM kexi__objects WHERE o_type=%1 AND lower(o_name)=%2")
|
|
.arg(sdata.type()).arg(m_driver->valueToSQL(Field::Text, sdata.name().lower())), existingID))
|
|
{
|
|
//we already have stored a schema data with the same name and type:
|
|
//just update it's properties as it would be existing object
|
|
sdata.m_id = existingID;
|
|
newObject = false;
|
|
}
|
|
}
|
|
if (newObject) {
|
|
FieldList *fl;
|
|
bool ok;
|
|
if (sdata.id()<=0) {//get new ID
|
|
fl = ts->subList("o_type", "o_name", "o_caption", "o_desc");
|
|
ok = fl!=0;
|
|
if (ok && !insertRecord(*fl, TQVariant(sdata.type()), TQVariant(sdata.name()),
|
|
TQVariant(sdata.caption()), TQVariant(sdata.description()) ))
|
|
ok = false;
|
|
delete fl;
|
|
if (!ok)
|
|
return false;
|
|
//fetch newly assigned ID
|
|
//! @todo safe to cast it?
|
|
int obj_id = (int)lastInsertedAutoIncValue("o_id",*ts);
|
|
KexiDBDbg << "######## NEW obj_id == " << obj_id << endl;
|
|
if (obj_id<=0)
|
|
return false;
|
|
sdata.m_id = obj_id;
|
|
return true;
|
|
} else {
|
|
fl = ts->subList("o_id", "o_type", "o_name", "o_caption", "o_desc");
|
|
ok = fl!=0;
|
|
if (ok && !insertRecord(*fl, TQVariant(sdata.id()), TQVariant(sdata.type()), TQVariant(sdata.name()),
|
|
TQVariant(sdata.caption()), TQVariant(sdata.description()) ))
|
|
ok = false;
|
|
delete fl;
|
|
return ok;
|
|
}
|
|
}
|
|
//existing object:
|
|
return executeSQL(TQString("UPDATE kexi__objects SET o_type=%2, o_caption=%3, o_desc=%4 WHERE o_id=%1")
|
|
.arg(sdata.id()).arg(sdata.type())
|
|
.arg(m_driver->valueToSQL(KexiDB::Field::Text, sdata.caption()))
|
|
.arg(m_driver->valueToSQL(KexiDB::Field::Text, sdata.description())) );
|
|
}
|
|
|
|
tristate Connection::querySingleRecordInternal(RowData &data, const TQString* sql, QuerySchema* query,
|
|
bool addLimitTo1)
|
|
{
|
|
Q_ASSERT(sql || query);
|
|
//! @todo does not work with non-SQL data sources
|
|
if (sql)
|
|
m_sql = addLimitTo1 ? (*sql + " LIMIT 1") : *sql; // is this safe?
|
|
KexiDB::Cursor *cursor;
|
|
if (!(cursor = sql ? executeQuery( m_sql ) : executeQuery( *query ))) {
|
|
KexiDBWarn << "Connection::querySingleRecord(): !executeQuery() " << m_sql << endl;
|
|
return false;
|
|
}
|
|
if (!cursor->moveFirst() || cursor->eof()) {
|
|
const tristate result = cursor->error() ? false : cancelled;
|
|
KexiDBWarn << "Connection::querySingleRecord(): !cursor->moveFirst() || cursor->eof() m_sql=" << m_sql << endl;
|
|
setError(cursor);
|
|
deleteCursor(cursor);
|
|
return result;
|
|
}
|
|
cursor->storeCurrentRow(data);
|
|
return deleteCursor(cursor);
|
|
}
|
|
|
|
tristate Connection::querySingleRecord(const TQString& sql, RowData &data, bool addLimitTo1)
|
|
{
|
|
return querySingleRecordInternal(data, &sql, 0, addLimitTo1);
|
|
}
|
|
|
|
tristate Connection::querySingleRecord(QuerySchema& query, RowData &data, bool addLimitTo1)
|
|
{
|
|
return querySingleRecordInternal(data, 0, &query, addLimitTo1);
|
|
}
|
|
|
|
bool Connection::checkIfColumnExists(Cursor *cursor, uint column)
|
|
{
|
|
if (column >= cursor->fieldCount()) {
|
|
setError(ERR_CURSOR_RECORD_FETCHING, i18n("Column %1 does not exist for the query.").arg(column));
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
tristate Connection::querySingleString(const TQString& sql, TQString &value, uint column, bool addLimitTo1)
|
|
{
|
|
KexiDB::Cursor *cursor;
|
|
m_sql = addLimitTo1 ? (sql + " LIMIT 1") : sql; // is this safe?;
|
|
if (!(cursor = executeQuery( m_sql ))) {
|
|
KexiDBWarn << "Connection::querySingleRecord(): !executeQuery() " << m_sql << endl;
|
|
return false;
|
|
}
|
|
if (!cursor->moveFirst() || cursor->eof()) {
|
|
const tristate result = cursor->error() ? false : cancelled;
|
|
KexiDBWarn << "Connection::querySingleRecord(): !cursor->moveFirst() || cursor->eof() " << m_sql << endl;
|
|
deleteCursor(cursor);
|
|
return result;
|
|
}
|
|
if (!checkIfColumnExists(cursor, column)) {
|
|
deleteCursor(cursor);
|
|
return false;
|
|
}
|
|
value = cursor->value(column).toString();
|
|
return deleteCursor(cursor);
|
|
}
|
|
|
|
tristate Connection::querySingleNumber(const TQString& sql, int &number, uint column, bool addLimitTo1)
|
|
{
|
|
static TQString str;
|
|
static bool ok;
|
|
const tristate result = querySingleString(sql, str, column, addLimitTo1);
|
|
if (result!=true)
|
|
return result;
|
|
number = str.toInt(&ok);
|
|
return ok;
|
|
}
|
|
|
|
bool Connection::queryStringList(const TQString& sql, TQStringList& list, uint column)
|
|
{
|
|
KexiDB::Cursor *cursor;
|
|
clearError();
|
|
m_sql = sql;
|
|
if (!(cursor = executeQuery( m_sql ))) {
|
|
KexiDBWarn << "Connection::queryStringList(): !executeQuery() " << m_sql << endl;
|
|
return false;
|
|
}
|
|
cursor->moveFirst();
|
|
if (cursor->error()) {
|
|
setError(cursor);
|
|
deleteCursor(cursor);
|
|
return false;
|
|
}
|
|
if (!cursor->eof() && !checkIfColumnExists(cursor, column)) {
|
|
deleteCursor(cursor);
|
|
return false;
|
|
}
|
|
list.clear();
|
|
while (!cursor->eof()) {
|
|
list.append( cursor->value(column).toString() );
|
|
if (!cursor->moveNext() && cursor->error()) {
|
|
setError(cursor);
|
|
deleteCursor(cursor);
|
|
return false;
|
|
}
|
|
}
|
|
return deleteCursor(cursor);
|
|
}
|
|
|
|
bool Connection::resultExists(const TQString& sql, bool &success, bool addLimitTo1)
|
|
{
|
|
KexiDB::Cursor *cursor;
|
|
//optimization
|
|
if (m_driver->beh->SELECT_1_SUBQUERY_SUPPORTED) {
|
|
//this is at least for sqlite
|
|
if (addLimitTo1 && sql.left(6).upper() == "SELECT")
|
|
m_sql = TQString("SELECT 1 FROM (") + sql + ") LIMIT 1"; // is this safe?;
|
|
else
|
|
m_sql = sql;
|
|
}
|
|
else {
|
|
if (addLimitTo1 && sql.left(6).upper() == "SELECT")
|
|
m_sql = sql + " LIMIT 1"; //not always safe!
|
|
else
|
|
m_sql = sql;
|
|
}
|
|
if (!(cursor = executeQuery( m_sql ))) {
|
|
KexiDBWarn << "Connection::querySingleRecord(): !executeQuery() " << m_sql << endl;
|
|
success = false;
|
|
return false;
|
|
}
|
|
if (!cursor->moveFirst() || cursor->eof()) {
|
|
success = !cursor->error();
|
|
KexiDBWarn << "Connection::querySingleRecord(): !cursor->moveFirst() || cursor->eof() " << m_sql << endl;
|
|
setError(cursor);
|
|
deleteCursor(cursor);
|
|
return false;
|
|
}
|
|
success = deleteCursor(cursor);
|
|
return true;
|
|
}
|
|
|
|
bool Connection::isEmpty( TableSchema& table, bool &success )
|
|
{
|
|
return !resultExists( selectStatement( *table.query() ), success );
|
|
}
|
|
|
|
//! Used by addFieldPropertyToExtendedTableSchemaData()
|
|
static void createExtendedTableSchemaMainElementIfNeeded(
|
|
TQDomDocument& doc, TQDomElement& extendedTableSchemaMainEl,
|
|
bool& extendedTableSchemaStringIsEmpty)
|
|
{
|
|
if (!extendedTableSchemaStringIsEmpty)
|
|
return;
|
|
//init document
|
|
extendedTableSchemaMainEl = doc.createElement("EXTENDED_TABLE_SCHEMA");
|
|
doc.appendChild( extendedTableSchemaMainEl );
|
|
extendedTableSchemaMainEl.setAttribute("version", TQString::number(KEXIDB_EXTENDED_TABLE_SCHEMA_VERSION));
|
|
extendedTableSchemaStringIsEmpty = false;
|
|
}
|
|
|
|
//! Used by addFieldPropertyToExtendedTableSchemaData()
|
|
static void createExtendedTableSchemaFieldElementIfNeeded(TQDomDocument& doc,
|
|
TQDomElement& extendedTableSchemaMainEl, const TQString& fieldName, TQDomElement& extendedTableSchemaFieldEl,
|
|
bool append = true)
|
|
{
|
|
if (!extendedTableSchemaFieldEl.isNull())
|
|
return;
|
|
extendedTableSchemaFieldEl = doc.createElement("field");
|
|
if (append)
|
|
extendedTableSchemaMainEl.appendChild( extendedTableSchemaFieldEl );
|
|
extendedTableSchemaFieldEl.setAttribute("name", fieldName);
|
|
}
|
|
|
|
/*! @internal used by storeExtendedTableSchemaData()
|
|
Creates DOM node for \a propertyName and \a propertyValue.
|
|
Creates enclosing EXTENDED_TABLE_SCHEMA element if EXTENDED_TABLE_SCHEMA is true.
|
|
Updates extendedTableSchemaStringIsEmpty and extendedTableSchemaMainEl afterwards.
|
|
If extendedTableSchemaFieldEl is null, creates <field> element (with optional
|
|
"custom" attribute is \a custom is false). */
|
|
static void addFieldPropertyToExtendedTableSchemaData(
|
|
Field *f, const char* propertyName, const TQVariant& propertyValue,
|
|
TQDomDocument& doc, TQDomElement& extendedTableSchemaMainEl,
|
|
TQDomElement& extendedTableSchemaFieldEl,
|
|
bool& extendedTableSchemaStringIsEmpty,
|
|
bool custom = false )
|
|
{
|
|
createExtendedTableSchemaMainElementIfNeeded(doc,
|
|
extendedTableSchemaMainEl, extendedTableSchemaStringIsEmpty);
|
|
createExtendedTableSchemaFieldElementIfNeeded(
|
|
doc, extendedTableSchemaMainEl, f->name(), extendedTableSchemaFieldEl);
|
|
|
|
//create <property>
|
|
TQDomElement extendedTableSchemaFieldPropertyEl = doc.createElement("property");
|
|
extendedTableSchemaFieldEl.appendChild( extendedTableSchemaFieldPropertyEl );
|
|
if (custom)
|
|
extendedTableSchemaFieldPropertyEl.setAttribute("custom", "true");
|
|
extendedTableSchemaFieldPropertyEl.setAttribute("name", propertyName);
|
|
TQDomElement extendedTableSchemaFieldPropertyValueEl;
|
|
switch (propertyValue.type()) {
|
|
case TQVariant::String:
|
|
extendedTableSchemaFieldPropertyValueEl = doc.createElement("string");
|
|
break;
|
|
case TQVariant::CString:
|
|
extendedTableSchemaFieldPropertyValueEl = doc.createElement("cstring");
|
|
break;
|
|
case TQVariant::Int:
|
|
case TQVariant::Double:
|
|
case TQVariant::UInt:
|
|
case TQVariant::LongLong:
|
|
case TQVariant::ULongLong:
|
|
extendedTableSchemaFieldPropertyValueEl = doc.createElement("number");
|
|
break;
|
|
case TQVariant::Bool:
|
|
extendedTableSchemaFieldPropertyValueEl = doc.createElement("bool");
|
|
break;
|
|
default:
|
|
//! @todo add more TQVariant types
|
|
KexiDBFatal << "addFieldPropertyToExtendedTableSchemaData(): impl. error" << endl;
|
|
}
|
|
extendedTableSchemaFieldPropertyEl.appendChild( extendedTableSchemaFieldPropertyValueEl );
|
|
extendedTableSchemaFieldPropertyValueEl.appendChild(
|
|
doc.createTextNode( propertyValue.toString() ) );
|
|
}
|
|
|
|
bool Connection::storeExtendedTableSchemaData(TableSchema& tableSchema)
|
|
{
|
|
//! @todo future: save in older versions if neeed
|
|
TQDomDocument doc("EXTENDED_TABLE_SCHEMA");
|
|
TQDomElement extendedTableSchemaMainEl;
|
|
bool extendedTableSchemaStringIsEmpty = true;
|
|
|
|
//for each field:
|
|
Field *f;
|
|
for (Field::ListIterator it( *tableSchema.fields() ); (f = it.current()); ++it) {
|
|
TQDomElement extendedTableSchemaFieldEl;
|
|
if (f->visibleDecimalPlaces()>=0/*nondefault*/ && KexiDB::supportsVisibleDecimalPlacesProperty(f->type())) {
|
|
addFieldPropertyToExtendedTableSchemaData(
|
|
f, "visibleDecimalPlaces", f->visibleDecimalPlaces(), doc,
|
|
extendedTableSchemaMainEl, extendedTableSchemaFieldEl,
|
|
extendedTableSchemaStringIsEmpty );
|
|
}
|
|
// boolean field with "not null"
|
|
|
|
// add custom properties
|
|
const Field::CustomPropertiesMap customProperties(f->customProperties());
|
|
foreach( Field::CustomPropertiesMap::ConstIterator, itCustom, customProperties ) {
|
|
addFieldPropertyToExtendedTableSchemaData(
|
|
f, itCustom.key(), itCustom.data(), doc,
|
|
extendedTableSchemaMainEl, extendedTableSchemaFieldEl, extendedTableSchemaStringIsEmpty,
|
|
/*custom*/true );
|
|
}
|
|
// save lookup table specification, if present
|
|
LookupFieldSchema *lookupFieldSchema = tableSchema.lookupFieldSchema( *f );
|
|
if (lookupFieldSchema) {
|
|
createExtendedTableSchemaFieldElementIfNeeded(
|
|
doc, extendedTableSchemaMainEl, f->name(), extendedTableSchemaFieldEl, false/* !append */);
|
|
LookupFieldSchema::saveToDom(*lookupFieldSchema, doc, extendedTableSchemaFieldEl);
|
|
|
|
if (extendedTableSchemaFieldEl.hasChildNodes()) {
|
|
// this element provides the definition, so let's append it now
|
|
createExtendedTableSchemaMainElementIfNeeded(doc, extendedTableSchemaMainEl,
|
|
extendedTableSchemaStringIsEmpty);
|
|
extendedTableSchemaMainEl.appendChild( extendedTableSchemaFieldEl );
|
|
}
|
|
}
|
|
}
|
|
|
|
// Store extended schema information (see ExtendedTableSchemaInformation in Kexi Wiki)
|
|
if (extendedTableSchemaStringIsEmpty) {
|
|
#ifdef KEXI_DEBUG_GUI
|
|
KexiUtils::addAlterTableActionDebug(TQString("** Extended table schema REMOVED."));
|
|
#endif
|
|
if (!removeDataBlock( tableSchema.id(), "extended_schema"))
|
|
return false;
|
|
}
|
|
else {
|
|
#ifdef KEXI_DEBUG_GUI
|
|
KexiUtils::addAlterTableActionDebug(TQString("** Extended table schema set to:\n")+doc.toString(4));
|
|
#endif
|
|
if (!storeDataBlock( tableSchema.id(), doc.toString(1), "extended_schema" ))
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool Connection::loadExtendedTableSchemaData(TableSchema& tableSchema)
|
|
{
|
|
#define loadExtendedTableSchemaData_ERR \
|
|
{ setError(i18n("Error while loading extended table schema information.")); \
|
|
return false; }
|
|
#define loadExtendedTableSchemaData_ERR2(details) \
|
|
{ setError(i18n("Error while loading extended table schema information."), details); \
|
|
return false; }
|
|
#define loadExtendedTableSchemaData_ERR3(data) \
|
|
{ setError(i18n("Error while loading extended table schema information."), \
|
|
i18n("Invalid XML data: ") + data.left(1024) ); \
|
|
return false; }
|
|
|
|
// Load extended schema information, if present (see ExtendedTableSchemaInformation in Kexi Wiki)
|
|
TQString extendedTableSchemaString;
|
|
tristate res = loadDataBlock( tableSchema.id(), extendedTableSchemaString, "extended_schema" );
|
|
if (!res)
|
|
loadExtendedTableSchemaData_ERR;
|
|
// extendedTableSchemaString will be just empty if there is no such data block
|
|
|
|
#ifdef KEXIDB_LOOKUP_FIELD_TEST
|
|
//<temp. for LookupFieldSchema tests>
|
|
if (tableSchema.name()=="cars") {
|
|
LookupFieldSchema *lookupFieldSchema = new LookupFieldSchema();
|
|
lookupFieldSchema->rowSource().setType(LookupFieldSchema::RowSource::Table);
|
|
lookupFieldSchema->rowSource().setName("persons");
|
|
lookupFieldSchema->setBoundColumn(0); //id
|
|
lookupFieldSchema->setVisibleColumn(3); //surname
|
|
tableSchema.setLookupFieldSchema( "owner", lookupFieldSchema );
|
|
}
|
|
//</temp. for LookupFieldSchema tests>
|
|
#endif
|
|
|
|
if (extendedTableSchemaString.isEmpty())
|
|
return true;
|
|
|
|
TQDomDocument doc;
|
|
TQString errorMsg;
|
|
int errorLine, errorColumn;
|
|
if (!doc.setContent( extendedTableSchemaString, &errorMsg, &errorLine, &errorColumn ))
|
|
loadExtendedTableSchemaData_ERR2( i18n("Error in XML data: \"%1\" in line %2, column %3.\nXML data: ")
|
|
.arg(errorMsg).arg(errorLine).arg(errorColumn) + extendedTableSchemaString.left(1024));
|
|
|
|
//! @todo look at the current format version (KEXIDB_EXTENDED_TABLE_SCHEMA_VERSION)
|
|
|
|
if (doc.doctype().name()!="EXTENDED_TABLE_SCHEMA")
|
|
loadExtendedTableSchemaData_ERR3( extendedTableSchemaString );
|
|
|
|
TQDomElement docEl = doc.documentElement();
|
|
if (docEl.tagName()!="EXTENDED_TABLE_SCHEMA")
|
|
loadExtendedTableSchemaData_ERR3( extendedTableSchemaString );
|
|
|
|
for (TQDomNode n = docEl.firstChild(); !n.isNull(); n = n.nextSibling()) {
|
|
TQDomElement fieldEl = n.toElement();
|
|
if (fieldEl.tagName()=="field") {
|
|
Field *f = tableSchema.field( fieldEl.attribute("name") );
|
|
if (f) {
|
|
//set properties of the field:
|
|
//! @todo more properties
|
|
for (TQDomNode propNode = fieldEl.firstChild();
|
|
!propNode.isNull(); propNode = propNode.nextSibling())
|
|
{
|
|
TQDomElement propEl = propNode.toElement();
|
|
bool ok;
|
|
int intValue;
|
|
if (propEl.tagName()=="property") {
|
|
TQCString propertyName = propEl.attribute("name").latin1();
|
|
if (propEl.attribute("custom")=="true") {
|
|
//custom property
|
|
f->setCustomProperty(propertyName,
|
|
KexiDB::loadPropertyValueFromDom( propEl.firstChild() ));
|
|
}
|
|
else if (propertyName == "visibleDecimalPlaces"
|
|
&& KexiDB::supportsVisibleDecimalPlacesProperty(f->type()))
|
|
{
|
|
intValue = KexiDB::loadIntPropertyValueFromDom( propEl.firstChild(), &ok );
|
|
if (ok)
|
|
f->setVisibleDecimalPlaces(intValue);
|
|
}
|
|
//! @todo more properties...
|
|
}
|
|
else if (propEl.tagName()=="lookup-column") {
|
|
LookupFieldSchema *lookupFieldSchema = LookupFieldSchema::loadFromDom(propEl);
|
|
if (lookupFieldSchema)
|
|
lookupFieldSchema->debug();
|
|
tableSchema.setLookupFieldSchema( f->name(), lookupFieldSchema );
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
KexiDBWarn << "Connection::loadExtendedTableSchemaData(): no such field \""
|
|
<< fieldEl.attribute("name") << "\" in table \"" << tableSchema.name() << "\"" << endl;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
KexiDB::Field* Connection::setupField( const RowData &data )
|
|
{
|
|
bool ok = true;
|
|
int f_int_type = data.at(1).toInt(&ok);
|
|
if (f_int_type<=Field::InvalidType || f_int_type>Field::LastType)
|
|
ok = false;
|
|
if (!ok)
|
|
return 0;
|
|
Field::Type f_type = (Field::Type)f_int_type;
|
|
int f_len = TQMAX( 0, data.at(3).toInt(&ok) );
|
|
if (!ok)
|
|
return 0;
|
|
int f_prec = data.at(4).toInt(&ok);
|
|
if (!ok)
|
|
return 0;
|
|
int f_constr = data.at(5).toInt(&ok);
|
|
if (!ok)
|
|
return 0;
|
|
int f_opts = data.at(6).toInt(&ok);
|
|
if (!ok)
|
|
return 0;
|
|
|
|
if (!KexiUtils::isIdentifier( data.at(2).toString() )) {
|
|
setError(ERR_INVALID_IDENTIFIER, i18n("Invalid object name \"%1\"")
|
|
.arg( data.at(2).toString() ));
|
|
ok = false;
|
|
return 0;
|
|
}
|
|
|
|
Field *f = new Field(
|
|
data.at(2).toString(), f_type, f_constr, f_opts, f_len, f_prec );
|
|
|
|
f->setDefaultValue( KexiDB::stringToVariant(data.at(7).toString(), Field::variantType( f_type ), ok) );
|
|
if (!ok) {
|
|
KexiDBWarn << "Connection::setupTableSchema() problem with KexiDB::stringToVariant("
|
|
<< data.at(7).toString() << ")" << endl;
|
|
}
|
|
ok = true; //problem with defaultValue is not critical
|
|
|
|
f->m_caption = data.at(9).toString();
|
|
f->m_desc = data.at(10).toString();
|
|
return f;
|
|
}
|
|
|
|
KexiDB::TableSchema* Connection::setupTableSchema( const RowData &data )
|
|
{
|
|
TableSchema *t = new TableSchema( this );
|
|
if (!setupObjectSchemaData( data, *t )) {
|
|
delete t;
|
|
return 0;
|
|
}
|
|
|
|
KexiDB::Cursor *cursor;
|
|
if (!(cursor = executeQuery(
|
|
TQString::fromLatin1("SELECT t_id, f_type, f_name, f_length, f_precision, f_constraints, "
|
|
"f_options, f_default, f_order, f_caption, f_help"
|
|
" FROM kexi__fields WHERE t_id=%1 ORDER BY f_order").arg(t->m_id) )))
|
|
{
|
|
delete t;
|
|
return 0;
|
|
}
|
|
if (!cursor->moveFirst()) {
|
|
if (!cursor->error() && cursor->eof()) {
|
|
setError(i18n("Table has no fields defined."));
|
|
}
|
|
deleteCursor(cursor);
|
|
delete t;
|
|
return 0;
|
|
}
|
|
|
|
// For each field: load its schema
|
|
RowData fieldData;
|
|
bool ok = true;
|
|
while (!cursor->eof()) {
|
|
// KexiDBDbg<<"@@@ f_name=="<<cursor->value(2).asCString()<<endl;
|
|
cursor->storeCurrentRow(fieldData);
|
|
Field *f = setupField(fieldData);
|
|
if (!f) {
|
|
ok = false;
|
|
break;
|
|
}
|
|
t->addField(f);
|
|
cursor->moveNext();
|
|
}
|
|
|
|
if (!ok) {//error:
|
|
deleteCursor(cursor);
|
|
delete t;
|
|
return 0;
|
|
}
|
|
|
|
if (!deleteCursor(cursor)) {
|
|
delete t;
|
|
return 0;
|
|
}
|
|
|
|
if (!loadExtendedTableSchemaData(*t)) {
|
|
delete t;
|
|
return 0;
|
|
}
|
|
//store locally:
|
|
d->tables.insert(t->m_id, t);
|
|
d->tables_byname.insert(t->m_name.lower(), t);
|
|
return t;
|
|
}
|
|
|
|
TableSchema* Connection::tableSchema( const TQString& tableName )
|
|
{
|
|
TQString m_tableName = tableName.lower();
|
|
TableSchema *t = d->tables_byname[m_tableName];
|
|
if (t)
|
|
return t;
|
|
//not found: retrieve schema
|
|
RowData data;
|
|
if (true!=querySingleRecord(TQString::fromLatin1(
|
|
"SELECT o_id, o_type, o_name, o_caption, o_desc FROM kexi__objects WHERE lower(o_name)='%1' AND o_type=%2")
|
|
.arg(m_tableName).arg(KexiDB::TableObjectType), data))
|
|
return 0;
|
|
|
|
return setupTableSchema(data);
|
|
}
|
|
|
|
TableSchema* Connection::tableSchema( int tableId )
|
|
{
|
|
TableSchema *t = d->tables[tableId];
|
|
if (t)
|
|
return t;
|
|
//not found: retrieve schema
|
|
RowData data;
|
|
if (true!=querySingleRecord(TQString::fromLatin1(
|
|
"SELECT o_id, o_type, o_name, o_caption, o_desc FROM kexi__objects WHERE o_id=%1")
|
|
.arg(tableId), data))
|
|
return 0;
|
|
|
|
return setupTableSchema(data);
|
|
}
|
|
|
|
tristate Connection::loadDataBlock( int objectID, TQString &dataString, const TQString& dataID )
|
|
{
|
|
if (objectID<=0)
|
|
return false;
|
|
return querySingleString(
|
|
TQString("SELECT o_data FROM kexi__objectdata WHERE o_id=") + TQString::number(objectID)
|
|
+ " AND " + KexiDB::sqlWhere(m_driver, KexiDB::Field::Text, "o_sub_id", dataID),
|
|
dataString );
|
|
}
|
|
|
|
bool Connection::storeDataBlock( int objectID, const TQString &dataString, const TQString& dataID )
|
|
{
|
|
if (objectID<=0)
|
|
return false;
|
|
TQString sql(TQString::fromLatin1("SELECT kexi__objectdata.o_id FROM kexi__objectdata WHERE o_id=%1").arg(objectID));
|
|
TQString sql_sub( KexiDB::sqlWhere(m_driver, KexiDB::Field::Text, "o_sub_id", dataID) );
|
|
|
|
bool ok, exists;
|
|
exists = resultExists(sql + " and " + sql_sub, ok);
|
|
if (!ok)
|
|
return false;
|
|
if (exists) {
|
|
return executeSQL( "UPDATE kexi__objectdata SET o_data="
|
|
+ m_driver->valueToSQL( KexiDB::Field::LongText, dataString )
|
|
+ " WHERE o_id=" + TQString::number(objectID) + " AND " + sql_sub );
|
|
}
|
|
return executeSQL(
|
|
TQString::fromLatin1("INSERT INTO kexi__objectdata (o_id, o_data, o_sub_id) VALUES (")
|
|
+ TQString::number(objectID) +"," + m_driver->valueToSQL( KexiDB::Field::LongText, dataString )
|
|
+ "," + m_driver->valueToSQL( KexiDB::Field::Text, dataID ) + ")" );
|
|
}
|
|
|
|
bool Connection::removeDataBlock( int objectID, const TQString& dataID)
|
|
{
|
|
if (objectID<=0)
|
|
return false;
|
|
if (dataID.isEmpty())
|
|
return KexiDB::deleteRow(*this, "kexi__objectdata", "o_id", TQString::number(objectID));
|
|
else
|
|
return KexiDB::deleteRow(*this, "kexi__objectdata",
|
|
"o_id", KexiDB::Field::Integer, objectID, "o_sub_id", KexiDB::Field::Text, dataID);
|
|
}
|
|
|
|
KexiDB::QuerySchema* Connection::setupQuerySchema( const RowData &data )
|
|
{
|
|
bool ok = true;
|
|
const int objID = data[0].toInt(&ok);
|
|
if (!ok)
|
|
return false;
|
|
TQString sqlText;
|
|
if (!loadDataBlock( objID, sqlText, "sql" )) {
|
|
setError(ERR_OBJECT_NOT_FOUND,
|
|
i18n("Could not find definition for query \"%1\". Removing this query is recommended.")
|
|
.arg(data[2].toString()));
|
|
return 0;
|
|
}
|
|
d->parser()->parse( sqlText );
|
|
KexiDB::QuerySchema *query = d->parser()->query();
|
|
//error?
|
|
if (!query) {
|
|
setError(ERR_SQL_PARSE_ERROR,
|
|
i18n("<p>Could not load definition for query \"%1\". "
|
|
"SQL statement for this query is invalid:<br><tt>%2</tt></p>\n"
|
|
"<p>You can open this query in Text View and correct it.</p>").arg(data[2].toString())
|
|
.arg(d->parser()->statement()));
|
|
return 0;
|
|
}
|
|
if (!setupObjectSchemaData( data, *query )) {
|
|
delete query;
|
|
return 0;
|
|
}
|
|
d->queries.insert(query->m_id, query);
|
|
d->queries_byname.insert(query->m_name, query);
|
|
return query;
|
|
}
|
|
|
|
QuerySchema* Connection::querySchema( const TQString& queryName )
|
|
{
|
|
TQString m_queryName = queryName.lower();
|
|
QuerySchema *q = d->queries_byname[m_queryName];
|
|
if (q)
|
|
return q;
|
|
//not found: retrieve schema
|
|
RowData data;
|
|
if (true!=querySingleRecord(TQString::fromLatin1(
|
|
"SELECT o_id, o_type, o_name, o_caption, o_desc FROM kexi__objects WHERE lower(o_name)='%1' AND o_type=%2")
|
|
.arg(m_queryName).arg(KexiDB::QueryObjectType), data))
|
|
return 0;
|
|
|
|
return setupQuerySchema(data);
|
|
}
|
|
|
|
QuerySchema* Connection::querySchema( int queryId )
|
|
{
|
|
QuerySchema *q = d->queries[queryId];
|
|
if (q)
|
|
return q;
|
|
//not found: retrieve schema
|
|
clearError();
|
|
RowData data;
|
|
if (true!=querySingleRecord(TQString::fromLatin1(
|
|
"SELECT o_id, o_type, o_name, o_caption, o_desc FROM kexi__objects WHERE o_id=%1").arg(queryId), data))
|
|
return 0;
|
|
|
|
return setupQuerySchema(data);
|
|
}
|
|
|
|
bool Connection::setQuerySchemaObsolete( const TQString& queryName )
|
|
{
|
|
QuerySchema* oldQuery = querySchema( queryName );
|
|
if (!oldQuery)
|
|
return false;
|
|
d->obsoleteQueries.append(oldQuery);
|
|
d->queries_byname.take(queryName);
|
|
d->queries.take(oldQuery->id());
|
|
return true;
|
|
}
|
|
|
|
TableSchema* Connection::newKexiDBSystemTableSchema(const TQString& tsname)
|
|
{
|
|
TableSchema *ts = new TableSchema(tsname.lower());
|
|
insertInternalTableSchema( ts );
|
|
return ts;
|
|
}
|
|
|
|
bool Connection::isInternalTableSchema(const TQString& tableName)
|
|
{
|
|
return (d->kexiDBSystemTables[ d->tables_byname[tableName] ])
|
|
// these are here for compatiblility because we're no longer instantiate
|
|
// them but can exist in projects created with previous Kexi versions:
|
|
|| tableName=="kexi__final" || tableName=="kexi__useractions";
|
|
}
|
|
|
|
void Connection::insertInternalTableSchema(TableSchema *tableSchema)
|
|
{
|
|
tableSchema->setKexiDBSystem(true);
|
|
d->kexiDBSystemTables.insert(tableSchema, tableSchema);
|
|
d->tables_byname.insert(tableSchema->name(), tableSchema);
|
|
}
|
|
|
|
//! Creates kexi__* tables.
|
|
bool Connection::setupKexiDBSystemSchema()
|
|
{
|
|
if (!d->kexiDBSystemTables.isEmpty())
|
|
return true; //already set up
|
|
|
|
TableSchema *t_objects = newKexiDBSystemTableSchema("kexi__objects");
|
|
t_objects->addField( new Field("o_id", Field::Integer, Field::PrimaryKey | Field::AutoInc, Field::Unsigned) )
|
|
.addField( new Field("o_type", Field::Byte, 0, Field::Unsigned) )
|
|
.addField( new Field("o_name", Field::Text) )
|
|
.addField( new Field("o_caption", Field::Text ) )
|
|
.addField( new Field("o_desc", Field::LongText ) );
|
|
|
|
t_objects->debug();
|
|
|
|
TableSchema *t_objectdata = newKexiDBSystemTableSchema("kexi__objectdata");
|
|
t_objectdata->addField( new Field("o_id", Field::Integer, Field::NotNull, Field::Unsigned) )
|
|
.addField( new Field("o_data", Field::LongText) )
|
|
.addField( new Field("o_sub_id", Field::Text) );
|
|
|
|
TableSchema *t_fields = newKexiDBSystemTableSchema("kexi__fields");
|
|
t_fields->addField( new Field("t_id", Field::Integer, 0, Field::Unsigned) )
|
|
.addField( new Field("f_type", Field::Byte, 0, Field::Unsigned) )
|
|
.addField( new Field("f_name", Field::Text ) )
|
|
.addField( new Field("f_length", Field::Integer ) )
|
|
.addField( new Field("f_precision", Field::Integer ) )
|
|
.addField( new Field("f_constraints", Field::Integer ) )
|
|
.addField( new Field("f_options", Field::Integer ) )
|
|
.addField( new Field("f_default", Field::Text ) )
|
|
//these are additional properties:
|
|
.addField( new Field("f_order", Field::Integer ) )
|
|
.addField( new Field("f_caption", Field::Text ) )
|
|
.addField( new Field("f_help", Field::LongText ) );
|
|
|
|
/* TableSchema *t_querydata = newKexiDBSystemTableSchema("kexi__querydata");
|
|
t_querydata->addField( new Field("q_id", Field::Integer, 0, Field::Unsigned) )
|
|
.addField( new Field("q_sql", Field::LongText ) )
|
|
.addField( new Field("q_valid", Field::Boolean ) );
|
|
|
|
TableSchema *t_queryfields = newKexiDBSystemTableSchema("kexi__queryfields");
|
|
t_queryfields->addField( new Field("q_id", Field::Integer, 0, Field::Unsigned) )
|
|
.addField( new Field("f_order", Field::Integer ) )
|
|
.addField( new Field("f_id", Field::Integer ) )
|
|
.addField( new Field("f_tab_asterisk", Field::Integer, 0, Field::Unsigned) )
|
|
.addField( new Field("f_alltab_asterisk", Field::Boolean) );
|
|
|
|
TableSchema *t_querytables = newKexiDBSystemTableSchema("kexi__querytables");
|
|
t_querytables->addField( new Field("q_id", Field::Integer, 0, Field::Unsigned) )
|
|
.addField( new Field("t_id", Field::Integer, 0, Field::Unsigned) )
|
|
.addField( new Field("t_order", Field::Integer, 0, Field::Unsigned) );*/
|
|
|
|
TableSchema *t_db = newKexiDBSystemTableSchema("kexi__db");
|
|
t_db->addField( new Field("db_property", Field::Text, Field::NoConstraints, Field::NoOptions, 32 ) )
|
|
.addField( new Field("db_value", Field::LongText ) );
|
|
|
|
/* moved to KexiProject...
|
|
TableSchema *t_parts = newKexiDBSystemTableSchema("kexi__parts");
|
|
t_parts->addField( new Field("p_id", Field::Integer, Field::PrimaryKey | Field::AutoInc, Field::Unsigned) )
|
|
.addField( new Field("p_name", Field::Text) )
|
|
.addField( new Field("p_mime", Field::Text ) )
|
|
.addField( new Field("p_url", Field::Text ) );
|
|
*/
|
|
|
|
/*UNUSED
|
|
TableSchema *t_final = newKexiDBSystemTableSchema("kexi__final");
|
|
t_final->addField( new Field("p_id", Field::Integer, 0, Field::Unsigned) )
|
|
.addField( new Field("property", Field::LongText ) )
|
|
.addField( new Field("value", Field::BLOB) );
|
|
|
|
TableSchema *t_useractions = newKexiDBSystemTableSchema("kexi__useractions");
|
|
t_useractions->addField( new Field("p_id", Field::Integer, 0, Field::Unsigned) )
|
|
.addField( new Field("scope", Field::Integer ) )
|
|
.addField( new Field("name", Field::LongText ) )
|
|
.addField( new Field("text", Field::LongText ) )
|
|
.addField( new Field("icon", Field::LongText ) )
|
|
.addField( new Field("method", Field::Integer ) )
|
|
.addField( new Field("arguments", Field::LongText) );
|
|
*/
|
|
return true;
|
|
}
|
|
|
|
void Connection::removeMe(TableSchema *ts)
|
|
{
|
|
if (ts && !m_destructor_started) {
|
|
d->tables.take(ts->id());
|
|
d->tables_byname.take(ts->name());
|
|
}
|
|
}
|
|
|
|
TQString Connection::anyAvailableDatabaseName()
|
|
{
|
|
if (!d->availableDatabaseName.isEmpty()) {
|
|
return d->availableDatabaseName;
|
|
}
|
|
return m_driver->beh->ALWAYS_AVAILABLE_DATABASE_NAME;
|
|
}
|
|
|
|
void Connection::setAvailableDatabaseName(const TQString& dbName)
|
|
{
|
|
d->availableDatabaseName = dbName;
|
|
}
|
|
|
|
//! @internal used in updateRow(), insertRow(),
|
|
inline void updateRowDataWithNewValues(QuerySchema &query, RowData& data, KexiDB::RowEditBuffer::DBMap& b,
|
|
TQMap<QueryColumnInfo*,int>& columnsOrderExpanded)
|
|
{
|
|
columnsOrderExpanded = query.columnsOrder(QuerySchema::ExpandedList);
|
|
TQMap<QueryColumnInfo*,int>::ConstIterator columnsOrderExpandedIt;
|
|
for (KexiDB::RowEditBuffer::DBMap::ConstIterator it=b.constBegin();it!=b.constEnd();++it) {
|
|
columnsOrderExpandedIt = columnsOrderExpanded.find( it.key() );
|
|
if (columnsOrderExpandedIt == columnsOrderExpanded.constEnd()) {
|
|
KexiDBWarn << "(Connection) updateRowDataWithNewValues(): \"now also assign new value in memory\" step "
|
|
"- could not find item '" << it.key()->aliasOrName() << "'" << endl;
|
|
continue;
|
|
}
|
|
data[ columnsOrderExpandedIt.data() ] = it.data();
|
|
}
|
|
}
|
|
|
|
bool Connection::updateRow(QuerySchema &query, RowData& data, RowEditBuffer& buf, bool useROWID)
|
|
{
|
|
// Each SQL identifier needs to be escaped in the generated query.
|
|
// query.debug();
|
|
|
|
KexiDBDbg << "Connection::updateRow.." << endl;
|
|
clearError();
|
|
//--get PKEY
|
|
if (buf.dbBuffer().isEmpty()) {
|
|
KexiDBDbg << " -- NO CHANGES DATA!" << endl;
|
|
return true;
|
|
}
|
|
TableSchema *mt = query.masterTable();
|
|
if (!mt) {
|
|
KexiDBWarn << " -- NO MASTER TABLE!" << endl;
|
|
setError(ERR_UPDATE_NO_MASTER_TABLE,
|
|
i18n("Could not update row because there is no master table defined."));
|
|
return false;
|
|
}
|
|
IndexSchema *pkey = (mt->primaryKey() && !mt->primaryKey()->fields()->isEmpty()) ? mt->primaryKey() : 0;
|
|
if (!useROWID && !pkey) {
|
|
KexiDBWarn << " -- NO MASTER TABLE's PKEY!" << endl;
|
|
setError(ERR_UPDATE_NO_MASTER_TABLES_PKEY,
|
|
i18n("Could not update row because master table has no primary key defined."));
|
|
//! @todo perhaps we can try to update without using PKEY?
|
|
return false;
|
|
}
|
|
//update the record:
|
|
m_sql = "UPDATE " + escapeIdentifier(mt->name()) + " SET ";
|
|
TQString sqlset, sqlwhere;
|
|
sqlset.reserve(1024);
|
|
sqlwhere.reserve(1024);
|
|
KexiDB::RowEditBuffer::DBMap b = buf.dbBuffer();
|
|
for (KexiDB::RowEditBuffer::DBMap::ConstIterator it=b.constBegin();it!=b.constEnd();++it) {
|
|
if (it.key()->field->table()!=mt)
|
|
continue; // skip values for fields outside of the master table (e.g. a "visible value" of the lookup field)
|
|
if (!sqlset.isEmpty())
|
|
sqlset+=",";
|
|
sqlset += (escapeIdentifier(it.key()->field->name()) + "=" +
|
|
m_driver->valueToSQL(it.key()->field,it.data()));
|
|
}
|
|
if (pkey) {
|
|
const TQValueVector<int> pkeyFieldsOrder( query.pkeyFieldsOrder() );
|
|
KexiDBDbg << pkey->fieldCount() << " ? " << query.pkeyFieldsCount() << endl;
|
|
if (pkey->fieldCount() != query.pkeyFieldsCount()) { //sanity check
|
|
KexiDBWarn << " -- NO ENTIRE MASTER TABLE's PKEY SPECIFIED!" << endl;
|
|
setError(ERR_UPDATE_NO_ENTIRE_MASTER_TABLES_PKEY,
|
|
i18n("Could not update row because it does not contain entire master table's primary key."));
|
|
return false;
|
|
}
|
|
if (!pkey->fields()->isEmpty()) {
|
|
uint i=0;
|
|
for (Field::ListIterator it = pkey->fieldsIterator(); it.current(); i++, ++it) {
|
|
if (!sqlwhere.isEmpty())
|
|
sqlwhere+=" AND ";
|
|
TQVariant val = data[ pkeyFieldsOrder[i] ];
|
|
if (val.isNull() || !val.isValid()) {
|
|
setError(ERR_UPDATE_NULL_PKEY_FIELD,
|
|
i18n("Primary key's field \"%1\" cannot be empty.").arg(it.current()->name()));
|
|
//js todo: pass the field's name somewhere!
|
|
return false;
|
|
}
|
|
sqlwhere += ( escapeIdentifier(it.current()->name()) + "=" +
|
|
m_driver->valueToSQL( it.current(), val ) );
|
|
}
|
|
}
|
|
}
|
|
else {//use ROWID
|
|
sqlwhere = ( escapeIdentifier(m_driver->beh->ROW_ID_FIELD_NAME) + "="
|
|
+ m_driver->valueToSQL(Field::BigInteger, data[data.size()-1]));
|
|
}
|
|
m_sql += (sqlset + " WHERE " + sqlwhere);
|
|
KexiDBDbg << " -- SQL == " << ((m_sql.length() > 400) ? (m_sql.left(400)+"[.....]") : m_sql) << endl;
|
|
|
|
if (!executeSQL(m_sql)) {
|
|
setError(ERR_UPDATE_SERVER_ERROR, i18n("Row updating on the server failed."));
|
|
return false;
|
|
}
|
|
//success: now also assign new values in memory:
|
|
TQMap<QueryColumnInfo*,int> columnsOrderExpanded;
|
|
updateRowDataWithNewValues(query, data, b, columnsOrderExpanded);
|
|
return true;
|
|
}
|
|
|
|
bool Connection::insertRow(QuerySchema &query, RowData& data, RowEditBuffer& buf, bool getROWID)
|
|
{
|
|
// Each SQL identifier needs to be escaped in the generated query.
|
|
KexiDBDbg << "Connection::updateRow.." << endl;
|
|
clearError();
|
|
//--get PKEY
|
|
/*disabled: there may be empty rows (with autoinc)
|
|
if (buf.dbBuffer().isEmpty()) {
|
|
KexiDBDbg << " -- NO CHANGES DATA!" << endl;
|
|
return true; }*/
|
|
TableSchema *mt = query.masterTable();
|
|
if (!mt) {
|
|
KexiDBWarn << " -- NO MASTER TABLE!" << endl;
|
|
setError(ERR_INSERT_NO_MASTER_TABLE,
|
|
i18n("Could not insert row because there is no master table defined."));
|
|
return false;
|
|
}
|
|
IndexSchema *pkey = (mt->primaryKey() && !mt->primaryKey()->fields()->isEmpty()) ? mt->primaryKey() : 0;
|
|
if (!getROWID && !pkey)
|
|
KexiDBWarn << " -- WARNING: NO MASTER TABLE's PKEY" << endl;
|
|
|
|
TQString sqlcols, sqlvals;
|
|
sqlcols.reserve(1024);
|
|
sqlvals.reserve(1024);
|
|
|
|
//insert the record:
|
|
m_sql = "INSERT INTO " + escapeIdentifier(mt->name()) + " (";
|
|
KexiDB::RowEditBuffer::DBMap b = buf.dbBuffer();
|
|
|
|
// add default values, if available (for any column without value explicitly set)
|
|
const QueryColumnInfo::Vector fieldsExpanded( query.fieldsExpanded( QuerySchema::Unique ) );
|
|
for (uint i=0; i<fieldsExpanded.count(); i++) {
|
|
QueryColumnInfo *ci = fieldsExpanded.at(i);
|
|
if (ci->field && KexiDB::isDefaultValueAllowed(ci->field)
|
|
&& !ci->field->defaultValue().isNull()
|
|
&& !b.contains( ci ))
|
|
{
|
|
KexiDBDbg << "Connection::insertRow(): adding default value '" << ci->field->defaultValue().toString()
|
|
<< "' for column '" << ci->field->name() << "'" << endl;
|
|
b.insert( ci, ci->field->defaultValue() );
|
|
}
|
|
}
|
|
|
|
if (b.isEmpty()) {
|
|
// empty row inserting requested:
|
|
if (!getROWID && !pkey) {
|
|
KexiDBWarn << "MASTER TABLE's PKEY REQUIRED FOR INSERTING EMPTY ROWS: INSERT CANCELLED" << endl;
|
|
setError(ERR_INSERT_NO_MASTER_TABLES_PKEY,
|
|
i18n("Could not insert row because master table has no primary key defined."));
|
|
return false;
|
|
}
|
|
if (pkey) {
|
|
const TQValueVector<int> pkeyFieldsOrder( query.pkeyFieldsOrder() );
|
|
// KexiDBDbg << pkey->fieldCount() << " ? " << query.pkeyFieldsCount() << endl;
|
|
if (pkey->fieldCount() != query.pkeyFieldsCount()) { //sanity check
|
|
KexiDBWarn << "NO ENTIRE MASTER TABLE's PKEY SPECIFIED!" << endl;
|
|
setError(ERR_INSERT_NO_ENTIRE_MASTER_TABLES_PKEY,
|
|
i18n("Could not insert row because it does not contain entire master table's primary key.")
|
|
.arg(query.name()));
|
|
return false;
|
|
}
|
|
}
|
|
//at least one value is needed for VALUES section: find it and set to NULL:
|
|
Field *anyField = mt->anyNonPKField();
|
|
if (!anyField) {
|
|
if (!pkey) {
|
|
KexiDBWarn << "WARNING: NO FIELD AVAILABLE TO SET IT TO NULL" << endl;
|
|
return false;
|
|
}
|
|
else {
|
|
//try to set NULL in pkey field (could not work for every SQL engine!)
|
|
anyField = pkey->fields()->first();
|
|
}
|
|
}
|
|
sqlcols += escapeIdentifier(anyField->name());
|
|
sqlvals += m_driver->valueToSQL(anyField,TQVariant()/*NULL*/);
|
|
}
|
|
else {
|
|
// non-empty row inserting requested:
|
|
for (KexiDB::RowEditBuffer::DBMap::ConstIterator it=b.constBegin();it!=b.constEnd();++it) {
|
|
if (it.key()->field->table()!=mt)
|
|
continue; // skip values for fields outside of the master table (e.g. a "visible value" of the lookup field)
|
|
if (!sqlcols.isEmpty()) {
|
|
sqlcols+=",";
|
|
sqlvals+=",";
|
|
}
|
|
sqlcols += escapeIdentifier(it.key()->field->name());
|
|
sqlvals += m_driver->valueToSQL(it.key()->field,it.data());
|
|
}
|
|
}
|
|
m_sql += (sqlcols + ") VALUES (" + sqlvals + ")");
|
|
// KexiDBDbg << " -- SQL == " << m_sql << endl;
|
|
|
|
bool res = executeSQL(m_sql);
|
|
|
|
if (!res) {
|
|
setError(ERR_INSERT_SERVER_ERROR, i18n("Row inserting on the server failed."));
|
|
return false;
|
|
}
|
|
//success: now also assign a new value in memory:
|
|
TQMap<QueryColumnInfo*,int> columnsOrderExpanded;
|
|
updateRowDataWithNewValues(query, data, b, columnsOrderExpanded);
|
|
|
|
//fetch autoincremented values
|
|
QueryColumnInfo::List *aif_list = query.autoIncrementFields();
|
|
TQ_ULLONG ROWID = 0;
|
|
if (pkey && !aif_list->isEmpty()) {
|
|
//! @todo now only if PKEY is present, this should also work when there's no PKEY
|
|
QueryColumnInfo *id_columnInfo = aif_list->first();
|
|
//! @todo safe to cast it?
|
|
TQ_ULLONG last_id = lastInsertedAutoIncValue(
|
|
id_columnInfo->field->name(), id_columnInfo->field->table()->name(), &ROWID);
|
|
if (last_id==(TQ_ULLONG)-1 || last_id<=0) {
|
|
//! @todo show error
|
|
//! @todo remove just inserted row. How? Using ROLLBACK?
|
|
return false;
|
|
}
|
|
RowData aif_data;
|
|
TQString getAutoIncForInsertedValue = TQString::fromLatin1("SELECT ")
|
|
+ query.autoIncrementSQLFieldsList(m_driver)
|
|
+ TQString::fromLatin1(" FROM ")
|
|
+ escapeIdentifier(id_columnInfo->field->table()->name())
|
|
+ TQString::fromLatin1(" WHERE ")
|
|
+ escapeIdentifier(id_columnInfo->field->name()) + "="
|
|
+ TQString::number(last_id);
|
|
if (true!=querySingleRecord(getAutoIncForInsertedValue, aif_data)) {
|
|
//! @todo show error
|
|
return false;
|
|
}
|
|
QueryColumnInfo::ListIterator ci_it(*aif_list);
|
|
QueryColumnInfo *ci;
|
|
for (uint i=0; (ci = ci_it.current()); ++ci_it, i++) {
|
|
// KexiDBDbg << "Connection::insertRow(): AUTOINCREMENTED FIELD " << fi->field->name() << " == "
|
|
// << aif_data[i].toInt() << endl;
|
|
( data[ columnsOrderExpanded[ ci ] ] = aif_data[i] ).cast( ci->field->variantType() ); //cast to get proper type
|
|
}
|
|
}
|
|
else {
|
|
ROWID = drv_lastInsertRowID();
|
|
// KexiDBDbg << "Connection::insertRow(): new ROWID == " << (uint)ROWID << endl;
|
|
if (m_driver->beh->ROW_ID_FIELD_RETURNS_LAST_AUTOINCREMENTED_VALUE) {
|
|
KexiDBWarn << "Connection::insertRow(): m_driver->beh->ROW_ID_FIELD_RETURNS_LAST_AUTOINCREMENTED_VALUE" << endl;
|
|
return false;
|
|
}
|
|
}
|
|
if (getROWID && /*sanity check*/data.size() > fieldsExpanded.size()) {
|
|
// KexiDBDbg << "Connection::insertRow(): new ROWID == " << (uint)ROWID << endl;
|
|
data[data.size()-1] = ROWID;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool Connection::deleteRow(QuerySchema &query, RowData& data, bool useROWID)
|
|
{
|
|
// Each SQL identifier needs to be escaped in the generated query.
|
|
KexiDBWarn << "Connection::deleteRow.." << endl;
|
|
clearError();
|
|
TableSchema *mt = query.masterTable();
|
|
if (!mt) {
|
|
KexiDBWarn << " -- NO MASTER TABLE!" << endl;
|
|
setError(ERR_DELETE_NO_MASTER_TABLE,
|
|
i18n("Could not delete row because there is no master table defined.")
|
|
.arg(query.name()));
|
|
return false;
|
|
}
|
|
IndexSchema *pkey = (mt->primaryKey() && !mt->primaryKey()->fields()->isEmpty()) ? mt->primaryKey() : 0;
|
|
|
|
//! @todo allow to delete from a table without pkey
|
|
if (!useROWID && !pkey) {
|
|
KexiDBWarn << " -- WARNING: NO MASTER TABLE's PKEY" << endl;
|
|
setError(ERR_DELETE_NO_MASTER_TABLES_PKEY,
|
|
i18n("Could not delete row because there is no primary key for master table defined."));
|
|
return false;
|
|
}
|
|
|
|
//update the record:
|
|
m_sql = "DELETE FROM " + escapeIdentifier(mt->name()) + " WHERE ";
|
|
TQString sqlwhere;
|
|
sqlwhere.reserve(1024);
|
|
|
|
if (pkey) {
|
|
const TQValueVector<int> pkeyFieldsOrder( query.pkeyFieldsOrder() );
|
|
KexiDBDbg << pkey->fieldCount() << " ? " << query.pkeyFieldsCount() << endl;
|
|
if (pkey->fieldCount() != query.pkeyFieldsCount()) { //sanity check
|
|
KexiDBWarn << " -- NO ENTIRE MASTER TABLE's PKEY SPECIFIED!" << endl;
|
|
setError(ERR_DELETE_NO_ENTIRE_MASTER_TABLES_PKEY,
|
|
i18n("Could not delete row because it does not contain entire master table's primary key."));
|
|
return false;
|
|
}
|
|
uint i=0;
|
|
for (Field::ListIterator it = pkey->fieldsIterator(); it.current(); i++, ++it) {
|
|
if (!sqlwhere.isEmpty())
|
|
sqlwhere+=" AND ";
|
|
TQVariant val = data[ pkeyFieldsOrder[i] ];
|
|
if (val.isNull() || !val.isValid()) {
|
|
setError(ERR_DELETE_NULL_PKEY_FIELD, i18n("Primary key's field \"%1\" cannot be empty.")
|
|
.arg(it.current()->name()));
|
|
//js todo: pass the field's name somewhere!
|
|
return false;
|
|
}
|
|
sqlwhere += ( escapeIdentifier(it.current()->name()) + "=" +
|
|
m_driver->valueToSQL( it.current(), val ) );
|
|
}
|
|
}
|
|
else {//use ROWID
|
|
sqlwhere = ( escapeIdentifier(m_driver->beh->ROW_ID_FIELD_NAME) + "="
|
|
+ m_driver->valueToSQL(Field::BigInteger, data[data.size()-1]));
|
|
}
|
|
m_sql += sqlwhere;
|
|
KexiDBDbg << " -- SQL == " << m_sql << endl;
|
|
|
|
if (!executeSQL(m_sql)) {
|
|
setError(ERR_DELETE_SERVER_ERROR, i18n("Row deletion on the server failed."));
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool Connection::deleteAllRows(QuerySchema &query)
|
|
{
|
|
clearError();
|
|
TableSchema *mt = query.masterTable();
|
|
if (!mt) {
|
|
KexiDBWarn << " -- NO MASTER TABLE!" << endl;
|
|
return false;
|
|
}
|
|
IndexSchema *pkey = mt->primaryKey();
|
|
if (!pkey || pkey->fields()->isEmpty())
|
|
KexiDBWarn << "Connection::deleteAllRows -- WARNING: NO MASTER TABLE's PKEY" << endl;
|
|
|
|
m_sql = "DELETE FROM " + escapeIdentifier(mt->name());
|
|
|
|
KexiDBDbg << " -- SQL == " << m_sql << endl;
|
|
|
|
if (!executeSQL(m_sql)) {
|
|
setError(ERR_DELETE_SERVER_ERROR, i18n("Row deletion on the server failed."));
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void Connection::registerForTableSchemaChanges(TableSchemaChangeListenerInterface& listener,
|
|
TableSchema &schema)
|
|
{
|
|
TQPtrList<TableSchemaChangeListenerInterface>* listeners = d->tableSchemaChangeListeners[&schema];
|
|
if (!listeners) {
|
|
listeners = new TQPtrList<TableSchemaChangeListenerInterface>();
|
|
d->tableSchemaChangeListeners.insert(&schema, listeners);
|
|
}
|
|
//TODO: inefficient
|
|
if (listeners->findRef( &listener )==-1)
|
|
listeners->append( &listener );
|
|
}
|
|
|
|
void Connection::unregisterForTableSchemaChanges(TableSchemaChangeListenerInterface& listener,
|
|
TableSchema &schema)
|
|
{
|
|
TQPtrList<TableSchemaChangeListenerInterface>* listeners = d->tableSchemaChangeListeners[&schema];
|
|
if (!listeners)
|
|
return;
|
|
//TODO: inefficient
|
|
listeners->remove( &listener );
|
|
}
|
|
|
|
void Connection::unregisterForTablesSchemaChanges(TableSchemaChangeListenerInterface& listener)
|
|
{
|
|
for (TQPtrDictIterator< TQPtrList<TableSchemaChangeListenerInterface> > it(d->tableSchemaChangeListeners);
|
|
it.current(); ++it)
|
|
{
|
|
if (-1!=it.current()->find(&listener))
|
|
it.current()->take();
|
|
}
|
|
}
|
|
|
|
TQPtrList<Connection::TableSchemaChangeListenerInterface>*
|
|
Connection::tableSchemaChangeListeners(TableSchema& tableSchema) const
|
|
{
|
|
KexiDBDbg << d->tableSchemaChangeListeners.count() << endl;
|
|
return d->tableSchemaChangeListeners[&tableSchema];
|
|
}
|
|
|
|
tristate Connection::closeAllTableSchemaChangeListeners(TableSchema& tableSchema)
|
|
{
|
|
TQPtrList<Connection::TableSchemaChangeListenerInterface> *listeners = d->tableSchemaChangeListeners[&tableSchema];
|
|
if (!listeners)
|
|
return true;
|
|
TQPtrListIterator<KexiDB::Connection::TableSchemaChangeListenerInterface> tmpListeners(*listeners); //safer copy
|
|
tristate res = true;
|
|
//try to close every window
|
|
for (TQPtrListIterator<KexiDB::Connection::TableSchemaChangeListenerInterface> it(tmpListeners);
|
|
it.current() && res==true; ++it)
|
|
{
|
|
res = it.current()->closeListener();
|
|
}
|
|
return res;
|
|
}
|
|
|
|
/*PreparedStatement::Ptr Connection::prepareStatement(PreparedStatement::StatementType,
|
|
TableSchema&)
|
|
{
|
|
//safe?
|
|
return 0;
|
|
}*/
|
|
|
|
void Connection::setReadOnly(bool set)
|
|
{
|
|
if (d->isConnected)
|
|
return; //sanity
|
|
d->readOnly = set;
|
|
}
|
|
|
|
bool Connection::isReadOnly() const
|
|
{
|
|
return d->readOnly;
|
|
}
|
|
|
|
#include "connection.moc"
|