async def _signup(self):
data = tornado.escape.json_decode(self.request.body)
user = User(username=data['username'])
_, c = user.explict_query()
assert c == 0, "用户已存在"
user = User(**data)
user.add()
return self.send_json(user.model2dict(user))
async def _login(self):
data = tornado.escape.json_decode(self.request.body)
user = User(**data)
user, c = user.explict_query()
assert c == 1, "用户名或密码错误"
return self.send_json(user[0])
