sqlalchemy.py 文件源码

def get_schema(self, objects_class):
        extended_mapping = alchemyjsonschema.default_column_to_schema.copy()
        extended_mapping[sqltypes.ARRAY] = 'array'
        extended_mapping[sqltypes.JSON] = 'object'
        extended_mapping[TSVECTOR] = 'array'
        factory = alchemyjsonschema.SchemaFactory(alchemyjsonschema.StructuralWalker,
                                                  classifier=alchemyjsonschema.Classifier(extended_mapping))
        return factory(objects_class, depth=1)