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134 lines
5.5 KiB
134 lines
5.5 KiB
/***************************************************************************
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* Copyright (C) 2004-2005 Mark Kretschmann <markey@web.de> *
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* 2004 Christian Muehlhaeuser <chris@chris.de> *
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* 2004 Sami Nieminen <sami.nieminen@iki.fi> *
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* 2005 Ian Monroe <ian@monroe.nu> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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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 *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Steet, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#ifndef AMAROK_DBENGINEBASE_H
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#define AMAROK_DBENGINEBASE_H
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#include "plugin/plugin.h" //baseclass
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#include <tqobject.h> //baseclass
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class DbConfig
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{};
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class DbConnection : public TQObject, public amaroK::Plugin
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{
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public:
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enum DbConnectionType { sqlite = 0, mysql = 1, postgresql = 2 };
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DbConnection( DbConfig* /* config */ );
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virtual ~DbConnection() = 0;
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virtual TQStringList query( const TQString& /* statement */ ) = 0;
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virtual int insert( const TQString& /* statement */, const TQString& /* table */ ) = 0;
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const bool isInitialized() const { return m_initialized; }
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virtual bool isConnected() const = 0;
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virtual const TQString lastError() const { return "None"; }
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protected:
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bool m_initialized;
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DbConfig *m_config;
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};
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class QueryBuilder
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{
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public:
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//attributes:
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enum qBuilderTables { tabAlbum = 1, tabArtist = 2, tabGenre = 4, tabYear = 8, tabSong = 32, tabStats = 64, tabDummy = 0 };
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enum qBuilderOptions { optNoCompilations = 1, optOnlyCompilations = 2, optRemoveDuplicates = 4, optRandomize = 8 };
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enum qBuilderValues { valID = 1, valName = 2, valURL = 4, valTitle = 8, valTrack = 16, valScore = 32, valComment = 64,
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valBitrate = 128, valLength = 256, valSamplerate = 512, valPlayCounter = 1024,
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valCreateDate = 2048, valAccessDate = 4096, valPercentage = 8192, valArtistID = 16384, valAlbumID = 32768,
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valYearID = 65536, valGenreID = 131072, valDummy = 0 };
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enum qBuilderFunctions { funcCount = 1, funcMax = 2, funcMin = 4, funcAvg = 8, funcSum = 16 };
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enum qBuilderFilter { modeNormal = 0, modeFuzzy = 1 };
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QueryBuilder();
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TQString escapeString( TQString string )
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{
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return
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#ifdef USE_MYSQL
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// We have to escape "\" for mysql, but can't do so for sqlite
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(m_dbConnType == DbConnection::mysql)
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? string.replace("\\", "\\\\").replace( '\'', "''" )
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:
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#endif
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string.replace( '\'', "''" );
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}
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void addReturnValue( int table, int value );
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void addReturnFunctionValue( int function, int table, int value);
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uint countReturnValues();
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void addURLFilters( const TQStringList& filter );
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void addFilter( int tables, const TQString& filter, int mode = modeNormal );
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void addFilters( int tables, const TQStringList& filter );
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void excludeFilter( int tables, const TQString& filter );
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void addMatch( int tables, const TQString& match );
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void addMatch( int tables, int value, const TQString& match );
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void addMatches( int tables, const TQStringList& match );
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void excludeMatch( int tables, const TQString& match );
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void exclusiveFilter( int tableMatching, int tableNotMatching, int value );
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void setOptions( int options );
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void sortBy( int table, int value, bool descending = false );
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void sortByFunction( int function, int table, int value, bool descending = false );
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void groupBy( int table, int value );
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void setLimit( int startPos, int length );
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void initSQLDrag();
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void buildQuery();
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TQString getQuery();
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TQString query() { buildQuery(); return m_query; };
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void clear();
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TQStringList run();
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private:
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TQString tableName( int table );
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TQString valueName( int value );
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TQString functionName( int value );
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void linkTables( int tables );
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TQString m_query;
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TQString m_values;
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TQString m_tables;
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TQString m_join;
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TQString m_where;
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TQString m_sort;
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TQString m_group;
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TQString m_limit;
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int m_linkTables;
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uint m_returnValues;
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};
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#endif /*AMAROK_DBENGINEBASE_H*/
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