teachers_model.py 文件源码

def get_courses_with_session(self):
        query = self.ds.query(kind='teaches')
        query.add_filter('tid', '=', self.tid)
        teaches = list(query.fetch())
        courses = list()
        for teach in teaches:
            query = self.ds.query(kind='courses')
            query.add_filter('cid', '=', teach['cid'])
            courses = courses + list(query.fetch())
        results = list()
        for course in courses:
            query = self.ds.query(kind='sessions')
            query.add_filter('cid', '=', course['cid'])
            sessions = list(query.fetch())
            for session in sessions:
                if session['expires'].replace(tzinfo=None) > datetime.now():
                    results.append(session)
            if len(results) == 1:
                course['secret'] = sessions[0]['secret']

        # result = courses + sessions
        return courses