def update(self, attr, value):
try:
self.__setattr__(attr, value)
dbSession.commit()
return 1
except Exception as e:
dbSession.rollback()
print('DB update', e)
return None
def delete_all(obj_list):
try:
[dbSession.delete(i) for i in obj_list]
dbSession.commit()
return 1
except Exception as e:
dbSession.rollback()
print(e)
return None
def save_all(obj_list):
try:
dbSession.add_all(obj_list)
dbSession.commit()
return len(obj_list)
except Exception as e:
dbSession.rollback()
print(e)
return None
def delete(self):
try:
dbSession.delete(self)
dbSession.commit()
return 1
except Exception as e:
dbSession.rollback()
print(e)
return None
def save(self):
try:
dbSession.add(self) # self实例化对象代表就是u对象
dbSession.commit()
return 1
except Exception as e:
dbSession.rollback()
print(e)
return None