Exemple #1
0
        public LiteDatabase OpenDatabase()
        {
            if (string.IsNullOrEmpty(Path))
            {
                throw new Exception("Database path cannot be empty.");
            }

            var dbExists = File.Exists(Path);

            logger.Info("Opening db " + Path);
            CloseDatabase();
            Database = new LiteDatabase($"Filename={Path};Mode=Exclusive");

            // To force litedb to try to open file, should throw exceptuion if something is wrong with db file
            Database.GetCollectionNames();

            if (!dbExists)
            {
                Database.Engine.UserVersion = DBVersion;
            }
            else
            {
                if (Database.Engine.UserVersion > DBVersion)
                {
                    throw new Exception($"Database version {Database.Engine.UserVersion} is not supported.");
                }

                if (GetMigrationRequired(Database))
                {
                    throw new Exception("Database must be migrated before opening.");
                }
            }

            GamesCollection     = Database.GetCollection <IGame>("games");
            PlatformsCollection = Database.GetCollection <Platform>("platforms");
            EmulatorsCollection = Database.GetCollection <Emulator>("emulators");

            if (!dbExists)
            {
                GamesCollection.EnsureIndex(a => a.Id);
                PlatformsCollection.EnsureIndex(a => a.Id);
                EmulatorsCollection.EnsureIndex(a => a.Id);

                // Generate default platforms
                if (File.Exists(EmulatorDefinition.DefinitionsPath))
                {
                    var platforms = EmulatorDefinition.GetDefinitions()
                                    .SelectMany(a => a.Profiles.SelectMany(b => b.Platforms)).Distinct()
                                    .Select(a => new Platform(a)).ToList();
                    AddPlatform(platforms);
                }
            }

            DatabaseOpened?.Invoke(this, null);
            IsOpen = true;
            return(Database);
        }
        public LiteDatabase OpenDatabase(string path)
        {
            logger.Info("Opening db " + path);
            CloseDatabase();
            Database = new LiteDatabase(path);
            MigrateDatabase();

            // To force litedb to try to open file, should throw exceptuion if something is wrong with db file
            Database.GetCollectionNames();

            GamesCollection     = Database.GetCollection <IGame>("games");
            PlatformsCollection = Database.GetCollection <Platform>("platforms");
            EmulatorsCollection = Database.GetCollection <Emulator>("emulators");
            DatabaseOpened?.Invoke(this, null);
            return(Database);
        }