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[已解决]SQLAlchemy中commit出错:IntegrityError sqlite3.IntegrityError column openid is not unique SQL

SQLAlchemy crifan 839浏览 0评论

代码:

   newUser = User( openid = userOpenid,
                    province = userInfoDict[‘province’],
                    avatar_url = avatarUrl,
                    avatar_static_path = avatarStaticPath,
                    language = userInfoDict[‘language’],
                    city = userInfoDict[‘city’],
                    country = userInfoDict[‘country’],
                    sex = userInfoDict[‘sex’],
                    nickname = userInfoDict[‘nickname’])
    app.logger.debug(‘newUser=%s’, newUser)
    db.session.add(newUser)
    db.session.commit()

运行出错:

<div–<——————————————————————————
[2016-08-31 10:23:32 +0000] [28597] [ERROR] Error handling request /?code=011U8Wvf0FhjFE1YZUuf0juUvf0U8Wvj&state=
Traceback (most recent call last):
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/gunicorn/workers/sync.py”, line 135, in handle
    self.handle_request(listener, req, client, addr)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/gunicorn/workers/sync.py”, line 176, in handle_request
    respiter = self.wsgi(environ, resp.start_response)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/flask/app.py”, line 2000, in __call__
    return self.wsgi_app(environ, start_response)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/flask/app.py”, line 1991, in wsgi_app
    response = self.make_response(self.handle_exception(e))
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/flask/app.py”, line 1567, in handle_exception
    reraise(exc_type, exc_value, tb)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/flask/app.py”, line 1988, in wsgi_app
    response = self.full_dispatch_request()
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/flask/app.py”, line 1641, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/flask/app.py”, line 1544, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/flask/app.py”, line 1639, in full_dispatch_request
    rv = self.dispatch_request()
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/flask/app.py”, line 1625, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File “/root/html/SIPEvents/sipevents/views.py”, line 408, in index
    savedNewUser = saveUserInfoToDb(respUserInfoDict)
  File “/root/html/SIPEvents/sipevents/views.py”, line 138, in saveUserInfoToDb
    db.session.commit()
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/orm/scoping.py”, line 157, in do
    return getattr(self.registry(), name)(*args, **kwargs)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/orm/session.py”, line 811, in commit
    self.transaction.commit()
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/orm/session.py”, line 398, in commit
    self._prepare_impl()
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/orm/session.py”, line 378, in _prepare_impl
    self.session.flush()
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/orm/session.py”, line 2065, in flush
    self._flush(objects)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/orm/session.py”, line 2183, in _flush
    transaction.rollback(_capture_exception=True)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/util/langhelpers.py”, line 60, in __exit__
    compat.reraise(exc_type, exc_value, exc_tb)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/orm/session.py”, line 2147, in _flush
    flush_context.execute()
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/orm/unitofwork.py”, line 386, in execute
    rec.execute(self)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/orm/unitofwork.py”, line 545, in execute
    uow
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/orm/persistence.py”, line 176, in save_obj
    mapper, table, insert)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/orm/persistence.py”, line 776, in _emit_insert_statements
    execute(statement, multiparams)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/engine/base.py”, line 947, in execute
    return meth(self, multiparams, params)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/sql/elements.py”, line 262, in _execute_on_connection
    return connection._execute_clauseelement(self, multiparams, params)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/engine/base.py”, line 1055, in _execute_clauseelement
    compiled_sql, distilled_params
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/engine/base.py”, line 1191, in _execute_context
    context)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/engine/base.py”, line 1386, in _handle_dbapi_exception
    exc_info
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/util/compat.py”, line 202, in raise_from_cause
    reraise(type(exception), exception, tb=exc_tb, cause=cause)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/engine/base.py”, line 1184, in _execute_context
    context)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/sqlalchemy/engine/default.py”, line 462, in do_execute
    cursor.execute(statement, parameters)
IntegrityError: (sqlite3.IntegrityError) column openid is not unique [SQL: u’INSERT INTO wechat_users (openid, province, avatar_url, avatar_static_path, language, city, country, sex, nickname) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)’] [parameters: (u’oswjmv4X0cCXcfkIwjoDfCkeTVVY’, u’\u6c5f\u82cf’, u’http://wx.qlogo.cn/mmopen/ajNVdqHZLLDYtIJicNl7MjwZK5c1lxAJZ253c9v3JzDib2HDcw8UNKt6gkO19C3qPBaxQZVmPZohkzMhFVWplH2Q/0′, u’img/avatar/oswjmv4X0cCXcfkIwjoDfCkeTVVY.png’, u’zh_CN’, u’\u82cf\u5dde’, u’\u4e2d\u56fd’, 1, u’\u793c\u8c8c’)]

看起来是:

IntegrityError是完整性错误

column openid is not unique

是openid不是唯一的

-》说明是此处已有openid,再次插入了这个openid的User

-》

看来是:

自己的代码的逻辑,不严谨:

在插入新的User之前,没有去判断是否已存在该用户

-》所以此处改为:

在插入新用户之前,如果已有该用户,就去更新对应的信息:

[已解决]SQLAlchemy中update已有的某列的信息

转载请注明:在路上 » [已解决]SQLAlchemy中commit出错:IntegrityError sqlite3.IntegrityError column openid is not unique SQL

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