public void Startup()
{
ISQLDatabase database = ServiceRegistration.Get <ISQLDatabase>(false);
if (database == null)
{
throw new IllegalCallException("There is no database present in the system");
}
// Prepare schema
if (!database.TableExists(MediaPortal_Basis_Schema.MEDIAPORTAL_BASIS_TABLE_NAME))
{
ServiceRegistration.Get <ILogger>().Info("DatabaseManager: Creating subschema '{0}'", MediaPortal_Basis_Schema.SUBSCHEMA_NAME);
using (TextReader reader = new SqlScriptPreprocessor(MediaPortal_Basis_Schema.SubSchemaCreateScriptPath))
ExecuteBatch(database, new InstructionList(reader));
}
// Hint: Table MEDIAPORTAL_BASIS contains a sub schema entry for "MEDIAPORTAL_BASIS" with version number 1.0
int versionMajor;
int versionMinor;
if (!GetSubSchemaVersion(MediaPortal_Basis_Schema.SUBSCHEMA_NAME, out versionMajor, out versionMinor))
{
throw new UnexpectedStateException("{0} schema is not present or corrupted", MediaPortal_Basis_Schema.SUBSCHEMA_NAME);
}
ServiceRegistration.Get <ILogger>().Info("DatabaseManager: Subschema '{0}' present in version {1}.{2}",
MediaPortal_Basis_Schema.SUBSCHEMA_NAME, versionMajor, versionMinor);
}
protected bool GetDatabaseVersion(out int versionMajor, out int versionMinor, bool useBackupTable = false)
{
versionMajor = 0;
versionMinor = 0;
ISQLDatabase database = ServiceRegistration.Get <ISQLDatabase>(false);
if (!database.TableExists(MediaPortal_Basis_Schema.DATABASE_VERSION_TABLE_NAME + (useBackupTable ? BACKUP_TABLE_SUFFIX : "")))
{
return(false);
}
ITransaction transaction = database.BeginTransaction();
try
{
int versionIndex;
IDbCommand command;
if (useBackupTable)
{
command = SelectBackupDatabaseVersionByCommand(transaction, out versionIndex);
}
else
{
command = MediaPortal_Basis_Schema.SelectDatabaseVersionByCommand(transaction, out versionIndex);
}
using (command)
using (IDataReader reader = command.ExecuteReader(CommandBehavior.SingleRow))
{
if (reader.Read())
{
if (Version.TryParse(reader.GetString(versionIndex), out Version version))
{
versionMajor = version.Major;
versionMinor = version.Minor;
}
return(true);
}
return(false);
}
}
finally
{
transaction.Dispose();
}
}
public void Startup()
{
ISQLDatabase database = ServiceRegistration.Get <ISQLDatabase>(false);
if (database == null)
{
throw new IllegalCallException("There is no database present in the system");
}
if (!_migrationScriptPlaceholders.ContainsKey(SQL_CONCAT_PLACEHOLDER))
{
_migrationScriptPlaceholders.Add(SQL_CONCAT_PLACEHOLDER, database.ConcatOperator);
}
if (!_migrationScriptPlaceholders.ContainsKey(SQL_LEN_PLACEHOLDER))
{
_migrationScriptPlaceholders.Add(SQL_LEN_PLACEHOLDER, database.LengthFunction);
}
// Prepare schema
if (!database.TableExists(MediaPortal_Basis_Schema.MEDIAPORTAL_BASIS_TABLE_NAME))
{
ServiceRegistration.Get <ILogger>().Info("DatabaseManager: Creating subschema '{0}'", MediaPortal_Basis_Schema.SUBSCHEMA_NAME);
using (ITransaction transaction = database.BeginTransaction(IsolationLevel.Serializable))
{
using (TextReader reader = new SqlScriptPreprocessor(MediaPortal_Basis_Schema.SubSchemaCreateScriptPath))
ExecuteBatch(transaction, new InstructionList(reader));
transaction.Commit();
}
//A newly created database will be of the latest version
SetDatabaseVersion(DATABASE_VERSION_MAJOR, DATABASE_VERSION_MINOR);
}
// Hint: Table MEDIAPORTAL_BASIS contains a sub schema entry for "MEDIAPORTAL_BASIS" with version number 1.0
int versionMajor;
int versionMinor;
if (!GetSubSchemaVersion(MediaPortal_Basis_Schema.SUBSCHEMA_NAME, out versionMajor, out versionMinor))
{
throw new UnexpectedStateException("{0} schema is not present or corrupted", MediaPortal_Basis_Schema.SUBSCHEMA_NAME);
}
ServiceRegistration.Get <ILogger>().Info("DatabaseManager: Subschema '{0}' present in version {1}.{2}",
MediaPortal_Basis_Schema.SUBSCHEMA_NAME, versionMajor, versionMinor);
}
protected bool SetDatabaseVersion(int versionMajor, int versionMinor, bool useBackupTable = false)
{
Version newVersion = new Version(versionMajor, versionMinor);
ISQLDatabase database = ServiceRegistration.Get <ISQLDatabase>(false);
if (!database.TableExists(MediaPortal_Basis_Schema.DATABASE_VERSION_TABLE_NAME + (useBackupTable ? BACKUP_TABLE_SUFFIX : "")))
{
return(false);
}
ITransaction transaction = database.BeginTransaction();
try
{
IDbCommand command;
if (useBackupTable)
{
command = UpdateBackupDatabaseVersionCommand(transaction, newVersion.ToString(2));
}
else
{
command = MediaPortal_Basis_Schema.UpdateDatabaseVersionCommand(transaction, newVersion.ToString(2));
}
using (command)
{
command.ExecuteNonQuery();
}
transaction.Commit();
return(true);
}
catch (Exception e)
{
ServiceRegistration.Get <ILogger>().Error("DatabaseManager: Error updating database version", e);
transaction.Rollback();
throw;
}
}
protected DatabaseMigrationManager GetMiaMigrationManager(Guid miaId, string miaName)
{
if (_miaManagement == null)
{
_miaManagement = new MIA_Management();
}
//Check if table for mia can be found
var metaData = _miaManagement.GetMediaItemAspectMetadata(miaId);
string tableName = _miaManagement.GetMIATableName(metaData);
if (string.IsNullOrEmpty(tableName))
{
return(null);
}
//Check if backup table exists
ISQLDatabase database = ServiceRegistration.Get <ISQLDatabase>(false);
if (!database.TableExists($"{tableName}{BACKUP_TABLE_SUFFIX}"))
{
return(null);
}
//Add main table
IDictionary <string, IList <string> > defaultScriptPlaceholderTables = new Dictionary <string, IList <string> >();
defaultScriptPlaceholderTables.Add(MIA_TABLE_PLACEHOLDER, new List <string> {
tableName
});
//Add collection tables
foreach (var attribute in metaData.AttributeSpecifications)
{
if (attribute.Value.IsCollectionAttribute)
{
if (attribute.Value.Cardinality == Common.MediaManagement.Cardinality.OneToMany ||
attribute.Value.Cardinality == Common.MediaManagement.Cardinality.ManyToMany)
{
tableName = _miaManagement.GetMIACollectionAttributeTableName(attribute.Value);
if (string.IsNullOrEmpty(tableName))
{
continue;
}
if (!database.TableExists($"{tableName}{BACKUP_TABLE_SUFFIX}"))
{
continue;
}
if (!defaultScriptPlaceholderTables.ContainsKey(MIA_V_TABLE_PLACEHOLDER))
{
defaultScriptPlaceholderTables.Add(MIA_V_TABLE_PLACEHOLDER, new List <string>());
}
defaultScriptPlaceholderTables[MIA_V_TABLE_PLACEHOLDER].Add(tableName);
}
if (attribute.Value.Cardinality == Common.MediaManagement.Cardinality.ManyToMany)
{
tableName = _miaManagement.GetMIACollectionAttributeNMTableName(attribute.Value);
if (string.IsNullOrEmpty(tableName))
{
continue;
}
if (!database.TableExists($"{tableName}{BACKUP_TABLE_SUFFIX}"))
{
continue;
}
if (!defaultScriptPlaceholderTables.ContainsKey(MIA_NM_TABLE_PLACEHOLDER))
{
defaultScriptPlaceholderTables.Add(MIA_NM_TABLE_PLACEHOLDER, new List <string>());
}
defaultScriptPlaceholderTables[MIA_NM_TABLE_PLACEHOLDER].Add(tableName);
}
}
}
DatabaseMigrationManager manager = new DatabaseMigrationManager(miaName, "DefaultAspect", defaultScriptPlaceholderTables);
manager.AddDirectory(MediaPortal_Basis_Schema.DatabaseUpgradeScriptDirectory);
return(manager);
}
