diff options
Diffstat (limited to 'src/base')
| -rw-r--r-- | src/base/UDataBase.pas | 138 |
1 files changed, 122 insertions, 16 deletions
diff --git a/src/base/UDataBase.pas b/src/base/UDataBase.pas index 85b4b8e8..cccedc69 100644 --- a/src/base/UDataBase.pas +++ b/src/base/UDataBase.pas @@ -38,7 +38,8 @@ uses SQLiteTable3, UPath, USong, - USongs; + USongs, + UTextEncoding; //-------------------- //DataBaseSystem - Class including all DB methods @@ -100,6 +101,7 @@ type destructor Destroy; override; procedure Init(const Filename: IPath); + procedure ConvertFrom101To110(); procedure ReadScore(Song: TSong); procedure AddScore(Song: TSong; Level: integer; const Name: UTF8String; Score: integer); procedure WriteScore(Song: TSong); @@ -207,17 +209,11 @@ begin '[Rating] INTEGER NULL' + ');'); - // convert data from 1.01 to 1.1 - // part #2 - accomplishment - if finalizeConversion then + //add column date to cUS-Scores + if not ScoreDB.ContainsColumn(cUS_Scores, 'Date') then begin - Log.LogInfo('Outdated song database found - begin conversion from V1.01 to V1.1', 'TDataBaseSystem.Init'); - // insert old values into new db-schemes (/tables) - ScoreDB.ExecSQL('INSERT INTO ' + cUS_Scores + ' SELECT SongID, Difficulty, Player, Score FROM us_scores_101;'); - ScoreDB.ExecSQL('INSERT INTO ' + cUS_Songs + ' SELECT ID, Artist, Title, TimesPlayed, ''NULL'' FROM us_songs_101;'); - //now drop old tables - ScoreDB.ExecSQL('DROP TABLE us_scores_101;'); - ScoreDB.ExecSQL('DROP TABLE us_songs_101;'); + Log.LogInfo('adding column date to "' + cUS_Scores + '"', 'TDataBaseSystem.Init'); + ScoreDB.ExecSQL('ALTER TABLE ' + cUS_Scores + ' ADD COLUMN [Date] INTEGER NULL'); end; // add column rating to cUS_Songs @@ -228,12 +224,13 @@ begin ScoreDB.ExecSQL('ALTER TABLE ' + cUS_Songs + ' ADD COLUMN [Rating] INTEGER NULL'); end; - - //add column date to cUS-Scores - if not ScoreDB.ContainsColumn(cUS_Scores, 'Date') then + // convert data from previous versions + // part #2 - accomplishment + if finalizeConversion then begin - Log.LogInfo('adding column date to "' + cUS_Scores + '"', 'TDataBaseSystem.Init'); - ScoreDB.ExecSQL('ALTER TABLE ' + cUS_Scores + ' ADD COLUMN [Date] INTEGER NULL'); + //convert data from 1.01 to 1.1 + if ScoreDB.TableExists('us_scores_101') then + ConvertFrom101To110(); end; except @@ -247,6 +244,115 @@ begin end; (** + * Convert Database from 1.01 to 1.1 + *) +procedure TDataBaseSystem.ConvertFrom101To110(); +var + TableData: TSQLiteUniTable; + tempUTF8String: UTF8String; +begin + if not ScoreDB.ContainsColumn('us_scores_101', 'Date') then + begin + Log.LogInfo( + 'Outdated song database found - ' + + 'begin conversion from V1.01 to V1.1', 'TDataBaseSystem.Convert101To110'); + + // insert old values into new db-schemes (/tables) + ScoreDB.ExecSQL( + 'INSERT INTO ' + cUS_Scores + + ' SELECT SongID, Difficulty, Player, Score FROM us_scores_101;'); + end else + begin + Log.LogInfo( + 'Outdated song database found - ' + + 'begin conversion from V1.01 Challenge Mod to V1.1', 'TDataBaseSystem.Convert101To110'); + + // insert old values into new db-schemes (/tables) + ScoreDB.ExecSQL( + 'INSERT INTO ' + cUS_Scores + + ' SELECT SongID, Difficulty, Player, Score, Date FROM us_scores_101;'); + end; + + ScoreDB.ExecSQL( + 'INSERT INTO ' + cUS_Songs + + ' SELECT ID, Artist, Title, TimesPlayed, ''NULL'' FROM us_songs_101;'); + + // now we have to convert all the texts for unicode support: + + // player names + TableData := nil; + try + TableData := ScoreDB.GetUniTable( + 'SELECT [rowid], [Player] ' + + 'FROM [' + cUS_Scores + '];'); + + // Go through all Entrys + while (not TableData.EOF) do + begin + // Convert name into UTF8 and alter all entrys + DecodeStringUTF8(TableData.FieldByName['Player'], tempUTF8String, encCP1252); + ScoreDB.ExecSQL( + 'UPDATE [' + cUS_Scores + '] ' + + 'SET [Player] = ? ' + + 'WHERE [rowid] = ? ', + [tempUTF8String, + TableData.FieldAsInteger(TableData.FieldIndex['rowid'])]); + + TableData.Next; + end; // while + + except + on E: Exception do + Log.LogError(E.Message, 'TDataBaseSystem.Convert101To110'); + end; + + TableData.Free; + + // song artist and song title + TableData := nil; + try + TableData := ScoreDB.GetUniTable( + 'SELECT [ID], [Artist], [Title] ' + + 'FROM [' + cUS_Songs + '];'); + + // Go through all Entrys + while (not TableData.EOF) do + begin + // Convert Artist into UTF8 and alter all entrys + DecodeStringUTF8(TableData.FieldByName['Artist'], tempUTF8String, encCP1252); + //Log.LogError(TableData.FieldByName['Artist']+' -> '+tempUTF8String+' (encCP1252)'); + ScoreDB.ExecSQL( + 'UPDATE [' + cUS_Songs + '] ' + + 'SET [Artist] = ? ' + + 'WHERE [ID] = ?', + [tempUTF8String, + TableData.FieldAsInteger(TableData.FieldIndex['ID'])]); + + // Convert Title into UTF8 and alter all entrys + DecodeStringUTF8(TableData.FieldByName['Title'], tempUTF8String, encCP1252); + ScoreDB.ExecSQL( + 'UPDATE [' + cUS_Songs + '] ' + + 'SET [Title] = ? ' + + 'WHERE [ID] = ? ', + [tempUTF8String, + TableData.FieldAsInteger(TableData.FieldIndex['ID'])]); + + TableData.Next; + end; // while + + except + on E: Exception do + Log.LogError(E.Message, 'TDataBaseSystem.Convert101To110'); + end; + + TableData.Free; + + //now drop old tables + ScoreDB.ExecSQL('DROP TABLE us_scores_101;'); + ScoreDB.ExecSQL('DROP TABLE us_songs_101;'); +end; + +(** * Frees Database *) destructor TDataBaseSystem.Destroy; |