base.py 文件源码

def __init__( self, *args ):
        super( DatabaseWrapper, self ).__init__( *args )
        self.ops = DatabaseOperations( self )
        if( djangoVersion[0:2] <= ( 1, 0 ) ):
            self.client = DatabaseClient()
        else:
            self.client = DatabaseClient( self )
        if( djangoVersion[0:2] <= ( 1, 2 ) ):
            self.features = DatabaseFeatures()
        else:
            self.features = DatabaseFeatures( self )
        self.creation = DatabaseCreation( self )

        if( djangoVersion[0:2] >= ( 1, 8 ) ): 
            self.data_types=self.creation.data_types
            self.data_type_check_constraints=self.creation.data_type_check_constraints

        self.introspection = DatabaseIntrospection( self )
        if( djangoVersion[0:2] <= ( 1, 1 ) ):
            self.validation = DatabaseValidation()
        else:
            self.validation = DatabaseValidation( self )
        self.databaseWrapper = Base.DatabaseWrapper()

    # Method to check if connection is live or not.