collection.py 文件源码

def albums(self, mf=MusicFilter(), cursor_factory=NamedTupleCursor, fast=False):
        if fast:
            sql = """select distinct name from albums"""
            return self.__fetchfast(sql)
        else:
            if mf is None:
                sql = """select coalesce(array_agg(distinct name), array[]::text[]) as albums from albums"""
            else:
                sql = """select coalesce(array_agg(distinct album), array[]::text[]) as albums from do_filter(%s::filter)"""
        return self.__fetchone(sql, mf, cursor_factory).albums