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122 lines
3.8 KiB
122 lines
3.8 KiB
/* This file is part of the KDE project
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Copyright (C) 2004 Adam Pigg <adam@piggz.co.uk>
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Copyright (C) 2006 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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#ifndef PQXXIMPORT_H
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#define PQXXIMPORT_H
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#include <migration/keximigrate.h>
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//Kexi Includes
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#include <kexidb/field.h>
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#include <kexidb/connection.h>
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#include <pqxx/pqxx>
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namespace KexiMigration
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{
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class PqxxMigrate : public KexiMigrate
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{
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Q_OBJECT
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TQ_OBJECT
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KEXIMIGRATION_DRIVER
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public:
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PqxxMigrate(TQObject *parent, const char *name, const TQStringList &args = TQStringList());
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virtual ~PqxxMigrate();
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protected:
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//Driver specific function to return table names
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virtual bool drv_tableNames(TQStringList& tablenames);
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//Driver specific implementation to read a table schema
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virtual bool drv_readTableSchema(
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const TQString& originalName, KexiDB::TableSchema& tableSchema);
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//Driver specific connection implementation
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virtual bool drv_connect();
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virtual bool drv_disconnect();
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virtual tristate drv_queryStringListFromSQL(
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const TQString& sqlStatement, uint columnNumber, TQStringList& stringList,
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int numRecords = -1);
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/*! Fetches single record from result obtained
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by running \a sqlStatement.
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\a firstRecord should be first initialized to true, so the method can run
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the query at first call and then set it will set \a firstRecord to false,
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so subsequent calls will only fetch records.
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On success the result is stored in \a data and true is returned,
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\a data is resized to appropriate size. cancelled is returned on EOF. */
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//! @todo SQL-dependent!
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virtual tristate drv_fetchRecordFromSQL(const TQString& sqlStatement,
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KexiDB::RowData& data, bool &firstRecord);
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virtual bool drv_copyTable(const TQString& srcTable,
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KexiDB::Connection *destConn, KexiDB::TableSchema* dstTable);
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private:
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//lowlevel functions/objects
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//database connection
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pqxx::connection* m_conn;
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//transaction
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pqxx::nontransaction* m_trans;
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//lowlevel result
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pqxx::result* m_res;
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//! Used in drv_fetchRecordFromSQL
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pqxx::result::const_iterator m_fetchRecordFromSQL_iter;
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//perform a query on the database
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bool query(const TQString& statement);
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//Clear the result info
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void clearResultInfo ();
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pqxx::oid tableOid(const TQString& tablename);
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//Convert the pqxx type to a kexi type
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KexiDB::Field::Type type(int t, const TQString& fname);
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//Find out the field constraints
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//Return whether or not the field is a pkey
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bool primaryKey(pqxx::oid table, int col) const;
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//Return whether or not the field is unique
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bool uniqueKey(pqxx::oid table, int col) const;
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//Return whether or not the field is a foreign key
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bool foreignKey(pqxx::oid table, int col) const;
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//Return whether or not the field is not null
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bool notNull(pqxx::oid table, int col) const;
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//Return whether or not the field is not empty
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bool notEmpty(pqxx::oid table, int col) const;
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//Return whether or not the field is auto incrementing
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bool autoInc(pqxx::oid table, int col) const;
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};
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}
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#endif
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