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authorGogolNr1 <GogolNr1@b956fd51-792f-4845-bead-9b4dfca2ff2c>2008-07-12 11:18:58 +0000
committerGogolNr1 <GogolNr1@b956fd51-792f-4845-bead-9b4dfca2ff2c>2008-07-12 11:18:58 +0000
commitbe2e6581b4708d5f05e450e7c3d1f8e100a77bc8 (patch)
treea615d3e00bf38e1a298470d3b396a7da19fecdf0 /Game/Changelog.german.txt
parentf9ec210f514c16a1000f11d4b647decbe3a2dbdd (diff)
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unit UDataBase;
interface {$IFDEF FPC} {$MODE Delphi} {$ENDIF} {$I switches.inc} uses USongs, USong, SQLiteTable3; //-------------------- //DataBaseSystem - Class including all DB Methods //-------------------- type TStatResult = record Case Typ: Byte of 0: (Singer: ShortString; Score: Word; Difficulty: Byte; SongArtist: ShortString; SongTitle: ShortString); 1: (Player: ShortString; AverageScore: Word); 2: (Artist: ShortString; Title: ShortString; TimesSung: Word); 3: (ArtistName: ShortString; TimesSungtot: Word); end; AStatResult = Array of TStatResult; TDataBaseSystem = class private ScoreDB: TSqliteDatabase; sFilename: string; public property Filename: String read sFilename; Destructor Destroy; override; Procedure Init(const Filename: string); procedure ReadScore(Song: TSong); procedure AddScore(Song: TSong; Level: integer; Name: string; Score: integer); procedure WriteScore(Song: TSong); Function GetStats(var Stats: AStatResult; const Typ, Count: Byte; const Page: Cardinal; const Reversed: Boolean): Boolean; Function GetTotalEntrys(const Typ: Byte): Cardinal; Function GetStatReset: TDateTime; end; var DataBase: TDataBaseSystem; implementation uses IniFiles, ULog, StrUtils, SysUtils; const cUS_Scores = 'us_scores'; cUS_Songs = 'us_songs'; cUS_Statistics_Info = 'us_statistics_info'; //-------------------- //Create - Opens Database and Create Tables if not Exist //-------------------- Procedure TDataBaseSystem.Init(const Filename: string); begin Log.LogStatus('Initializing database: "'+Filename+'"', 'TDataBaseSystem.Init'); //Open Database ScoreDB := TSqliteDatabase.Create( Filename ); sFilename := Filename; try //Look for Tables => When not exist Create them if not ScoreDB.TableExists( cUS_Scores ) then begin ScoreDB.execsql('CREATE TABLE `'+cUS_Scores+'` (`SongID` INT( 11 ) NOT NULL , `Difficulty` INT( 1 ) NOT NULL , `Player` VARCHAR( 150 ) NOT NULL , `Score` INT( 5 ) NOT NULL );'); debugWriteln( 'TDataBaseSystem.Init - CREATED US_Scores' ); end; if not ScoreDB.TableExists( cUS_Songs ) then begin ScoreDB.execsql('CREATE TABLE `'+cUS_Songs+'` (`ID` INTEGER PRIMARY KEY, `Artist` VARCHAR( 255 ) NOT NULL , `Title` VARCHAR( 255 ) NOT NULL , `TimesPlayed` int(5) NOT NULL );'); debugWriteln( 'TDataBaseSystem.Init - CREATED US_Songs' ); end; if not ScoreDB.TableExists( cUS_Statistics_Info ) then begin ScoreDB.execsql('CREATE TABLE `'+cUS_Statistics_Info+'` (`ResetTime` VARCHAR(17) );'); ScoreDB.execsql('INSERT INTO `'+cUS_Statistics_Info+'` (`ResetTime`) VALUES ("'+datetimetostr(now)+'");'); debugWriteln( 'TDataBaseSystem.Init - CREATED US_Statistics_Info' ); end; //Not possible because of String Limitation to 255 Chars //Need to rewrite Wrapper {if not ScoreDB.TableExists('US_SongCache') then ScoreDB.ExecSQL('CREATE TABLE `US_SongCache` (`Path` VARCHAR( 255 ) NOT NULL , `Filename` VARCHAR( 255 ) NOT NULL , `Title` VARCHAR( 255 ) NOT NULL , `Artist` VARCHAR( 255 ) NOT NULL , `Folder` VARCHAR( 255 ) NOT NULL , `Genre` VARCHAR( 255 ) NOT NULL , `Edition` VARCHAR( 255 ) NOT NULL , `Language` VARCHAR( 255 ) NOT NULL , `Creator` VARCHAR( 255 ) NOT NULL , `Cover` VARCHAR( 255 ) NOT NULL , `Background` VARCHAR( 255 ) NOT NULL , `Video` VARCHAR( 255 ) NOT NULL , `VideoGap` FLOAT NOT NULL , `Gap` FLOAT NOT NULL , `Start` FLOAT NOT NULL , `Finish` INT( 11 ) NOT NULL , `BPM` INT( 5 ) NOT NULL , `Relative` BOOLEAN NOT NULL , `NotesGap` INT( 11 ) NOT NULL);');} finally Log.LogInfo( cUS_Songs +' exists: ' + IfThen(ScoreDB.TableExists(cUS_Songs), 'true', 'false'), 'TDataBaseSystem.Init'); Log.LogInfo( cUS_Scores +' exists: ' + IfThen(ScoreDB.TableExists(cUS_Scores), 'true', 'false'), 'TDataBaseSystem.Init'); //ScoreDB.Free; end; end; //-------------------- //Destroy - Frees Database //-------------------- Destructor TDataBaseSystem.Destroy; begin Log.LogInfo('TDataBaseSystem.Free', 'TDataBaseSystem.Destroy'); freeandnil( ScoreDB ); inherited; end; //-------------------- //ReadScore - Read Scores into SongArray //-------------------- procedure TDataBaseSystem.ReadScore(Song: TSong); var TableData: TSqliteTable; Difficulty: Integer; begin if not assigned( ScoreDB ) then exit; //ScoreDB := TSqliteDatabase.Create(sFilename); try try //Search Song in DB TableData := ScoreDB.GetTable('SELECT `Difficulty`, `Player`, `Score` FROM `'+cUS_Scores+'` WHERE `SongID` = (SELECT `ID` FROM `us_songs` WHERE `Artist` = "' + Song.Artist + '" AND `Title` = "' + Song.Title + '" LIMIT 1) ORDER BY `Score` DESC LIMIT 15'); //Empty Old Scores SetLength (Song.Score[0], 0); SetLength (Song.Score[1], 0); SetLength (Song.Score[2], 0); while not TableData.Eof do //Go through all Entrys begin //Add one Entry to Array Difficulty := StrToIntDef(TableData.FieldAsString(TableData.FieldIndex['Difficulty']), -1); if (Difficulty >= 0) AND (Difficulty <= 2) then begin SetLength(Song.Score[Difficulty], Length(Song.Score[Difficulty]) + 1); Song.Score[Difficulty, high(Song.Score[Difficulty])].Name := TableData.FieldAsString(TableData.FieldIndex['Player']); Song.Score[Difficulty, high(Song.Score[Difficulty])].Score := StrtoInt(TableData.FieldAsString(TableData.FieldIndex['Score'])); end; TableData.Next; end; // While not TableData.EOF except for Difficulty := 0 to 2 do begin SetLength(Song.Score[Difficulty], 1); Song.Score[Difficulty, 1].Name := 'Error Reading ScoreDB'; end; end; finally //ScoreDb.Free; end; end; //-------------------- //AddScore - Add one new Score to DB //-------------------- procedure TDataBaseSystem.AddScore(Song: TSong; Level: integer; Name: string; Score: integer); var ID: Integer; TableData: TSqliteTable; begin if not assigned( ScoreDB ) then exit; //ScoreDB := TSqliteDatabase.Create(sFilename); try //Prevent 0 Scores from being added if (Score > 0) then begin ID := ScoreDB.GetTableValue('SELECT `ID` FROM `'+cUS_Songs+'` WHERE `Artist` = "' + Song.Artist + '" AND `Title` = "' + Song.Title + '"'); if ID = 0 then //Song doesn't exist -> Create begin ScoreDB.ExecSQL ('INSERT INTO `'+cUS_Songs+'` ( `ID` , `Artist` , `Title` , `TimesPlayed` ) VALUES (NULL , "' + Song.Artist + '", "' + Song.Title + '", "0");'); ID := ScoreDB.GetTableValue('SELECT `ID` FROM `US_Songs` WHERE `Artist` = "' + Song.Artist + '" AND `Title` = "' + Song.Title + '"'); if ID = 0 then //Could not Create Table exit; end; //Create new Entry ScoreDB.ExecSQL('INSERT INTO `'+cUS_Scores+'` ( `SongID` , `Difficulty` , `Player` , `Score` ) VALUES ("' + InttoStr(ID) + '", "' + InttoStr(Level) + '", "' + Name + '", "' + InttoStr(Score) + '");'); //Delete Last Position when there are more than 5 Entrys if ScoreDB.GetTableValue('SELECT COUNT(`SongID`) FROM `'+cUS_Scores+'` WHERE `SongID` = "' + InttoStr(ID) + '" AND `Difficulty` = "' + InttoStr(Level) +'"') > 5 then begin TableData := ScoreDB.GetTable('SELECT `Player`, `Score` FROM `'+cUS_Scores+'` WHERE SongID = "' + InttoStr(ID) + '" AND `Difficulty` = "' + InttoStr(Level) +'" ORDER BY `Score` ASC LIMIT 1'); ScoreDB.ExecSQL('DELETE FROM `US_Scores` WHERE SongID = "' + InttoStr(ID) + '" AND `Difficulty` = "' + InttoStr(Level) +'" AND `Player` = "' + TableData.FieldAsString(TableData.FieldIndex['Player']) + '" AND `Score` = "' + TableData.FieldAsString(TableData.FieldIndex['Score']) + '"'); end; end; finally //ScoreDB.Free; end; end; //-------------------- //WriteScore - Not needed with new System; But used for Increment Played Count //-------------------- procedure TDataBaseSystem.WriteScore(Song: TSong); begin if not assigned( ScoreDB ) then exit; try //Increase TimesPlayed ScoreDB.ExecSQL ('UPDATE `'+cUS_Songs+'` SET `TimesPlayed` = `TimesPlayed` + "1" WHERE `Title` = "' + Song.Title + '" AND `Artist` = "' + Song.Artist + '";'); except end; end; //-------------------- //GetStats - Write some Stats to Array, Returns True if Chossen Page has Entrys //Case Typ of //0 - Best Scores //1 - Best Singers //2 - Most sung Songs //3 - Most popular Band //-------------------- Function TDataBaseSystem.GetStats(var Stats: AStatResult; const Typ, Count: Byte; const Page: Cardinal; const Reversed: Boolean): Boolean; var Query: String; TableData: TSqliteTable; begin Result := False; if not assigned( ScoreDB ) then exit; if (Length(Stats) < Count) then Exit; {Todo: Add Prevention that only Players with more than 5 Scores are Selected at Typ 2} //Create Query Case Typ of 0: Query := 'SELECT `Player` , `Difficulty` , `Score` , `Artist` , `Title` FROM `'+cUS_Scores+'` INNER JOIN `US_Songs` ON (`SongID` = `ID`) ORDER BY `Score`'; 1: Query := 'SELECT `Player` , ROUND (Sum(`Score`) / COUNT(`Score`)) FROM `'+cUS_Scores+'` GROUP BY `Player` ORDER BY (Sum(`Score`) / COUNT(`Score`))'; 2: Query := 'SELECT `Artist` , `Title` , `TimesPlayed` FROM `'+cUS_Songs+'` ORDER BY `TimesPlayed`'; 3: Query := 'SELECT `Artist` , Sum(`TimesPlayed`) FROM `'+cUS_Songs+'` GROUP BY `Artist` ORDER BY Sum(`TimesPlayed`)'; end; //Add Order Direction If Reversed then Query := Query + ' ASC' else Query := Query + ' DESC'; //Add Limit Query := Query + ' LIMIT ' + InttoStr(Count * Page) + ', ' + InttoStr(Count) + ';'; //Execute Query try TableData := ScoreDB.GetTable(Query); except exit; // this has a try except, because ( on linux at least ) it seems that doing a GetTable, that returns nothing // causes an exception. and in the case of a new Database file, with no scores stored yet... this seems to except here. end; //if Result empty -> Exit if (TableData.RowCount < 1) then exit; //Copy Result to Stats Array while not TableData.Eof do begin Stats[TableData.Row].Typ := Typ; Case Typ of 0:begin Stats[TableData.Row].Singer := TableData.Fields[0]; Stats[TableData.Row].Difficulty := StrtoIntDef(TableData.Fields[1], 0); Stats[TableData.Row].Score := StrtoIntDef(TableData.Fields[2], 0){TableData.FieldAsInteger(2)}; Stats[TableData.Row].SongArtist := TableData.Fields[3]; Stats[TableData.Row].SongTitle := TableData.Fields[4]; end; 1:begin Stats[TableData.Row].Player := TableData.Fields[0]; Stats[TableData.Row].AverageScore := StrtoIntDef(TableData.Fields[1], 0); end; 2:begin Stats[TableData.Row].Artist := TableData.Fields[0]; Stats[TableData.Row].Title := TableData.Fields[1]; Stats[TableData.Row].TimesSung := StrtoIntDef(TableData.Fields[2], 0); end; 3:begin Stats[TableData.Row].ArtistName := TableData.Fields[0]; Stats[TableData.Row].TimesSungtot := StrtoIntDef(TableData.Fields[1], 0); end; end; TableData.Next; end; Result := True; end; //-------------------- //GetTotalEntrys - Get Total Num of entrys for a Stats Query //-------------------- Function TDataBaseSystem.GetTotalEntrys(const Typ: Byte): Cardinal; var Query: String; begin Result := 0; if not assigned( ScoreDB ) then exit; try //Create Query Case Typ of 0: begin Query := 'SELECT COUNT(`SongID`) FROM `'+cUS_Scores+'`;'; if not ScoreDB.TableExists( cUS_Scores ) then exit; end; 1: begin Query := 'SELECT COUNT(DISTINCT `Player`) FROM `'+cUS_Scores+'`;'; if not ScoreDB.TableExists( cUS_Scores ) then exit; end; 2: begin Query := 'SELECT COUNT(`ID`) FROM `'+cUS_Songs+'`;'; if not ScoreDB.TableExists( cUS_Songs ) then exit; end; 3: begin Query := 'SELECT COUNT(DISTINCT `Artist`) FROM `'+cUS_Songs+'`;'; if not ScoreDB.TableExists( cUS_Songs ) then exit; end; end; Result := ScoreDB.GetTableValue(Query); except // TODO : JB_Linux - Why do we get these exceptions on linux !! -> should be solved! on E:ESQLiteException DO begin exit; end; end; end; //-------------------- //GetStatReset - Get reset date of statistic data //-------------------- Function TDataBaseSystem.GetStatReset: TDateTime; var Query: String; TableData: TSqliteTable; begin if not assigned( ScoreDB ) then exit; Query := 'SELECT `ResetTime` FROM `'+cUS_Statistics_Info+'`;'; TableData := ScoreDB.GetTable(Query); result:=StrToDateTime(TableData.Fields[0]); end; end. git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@1185 b956fd51-792f-4845-bead-9b4dfca2ff2c
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