def validae_username_and_pwd(username,pwd):
'''
检测用户名是否存在
:return:
'''
query = " select 1 from hb_user where username=%s and pwd=%s "
param = (username,pwd)
res = yield get_data_from_db(query,param,search_type='one',num = 1,cursor = 'dict')
raise gen.Return(res)
def check(*args,**kw):
query = " select 1 from hb_user where username=%s "
param = ('0001')
# 这个可以根据自己需要配置自己的数据库
res = yield get_data_from_db(query,param,search_type='one',num = 1,cursor = 'dict')
print 'check_username check....'
print res
if res:
yield func(*args)
else:
msg_dict = {"code":"1004","msg":u"用户不存在!"}
args[0].write(msg_dict)
