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我有非常簡單的應用程序，其中匿名用戶張貼建議和主持人指定接收到的建議（狀態是：0,1,2,3）的狀態。瓶：記錄沒有立即更新
我使用燒瓶管理員給管理員定製列表視圖（我添加了4個按鈕的每個狀態）
from flask import Flask,request,url_for,redirect
from Admin.Admin import admin,init_login
from Model import db,suggestion,User
import geoip2.webservice
app = Flask(__name__)
app.config.from_pyfile('Config.cfg')
db.init_app(app)
app.config['SQLALCHEMY_POOL_SIZE'] = 100
app.config['SQLALCHEMY_POOL_RECYCLE'] = 100
init_login(app)
admin.init_app(app)
IPclient = geoip2.webservice.Client("XXX")
def UpdateRecord(ID,status):
try:
Record = suggestion.query.filter_by(id=ID).first()
Record.Flag=status
db.session.commit()
except Exception, r:
raise r
#db.session.flush()
#Record = suggestion.query.filter_by(id=id).first_or_404()
#Record.Flag=1
#db.session.commit()
@app.route('/')
def index():
return redirect("sometime ... ")
@app.route("/XXXX/Favorite/<int:id>")
def favorite(id):
UpdateRecord(id,1)
return redirect(url_for("admin.index")+"Favsuggestion")
@app.route("/XXXX/Archive/<int:id>")
def archive(id):
UpdateRecord(id,2)
return redirect(url_for("admin.index")+"Arcsuggestion")
@app.route("/WSC/Published/<int:id>")
def published(id):
UpdateRecord(id,3)
return redirect(url_for("admin.index")+"Pubsuggestion")
@app.route("/suggest",methods=["GET","POST"])
def suggest():
try:
db.session.flush()
suggestionString=request.form.get('suggestionString')
IpAddress=request.remote_addr
IPresponse = IPclient.city(IpAddress)
Country=IPresponse.country.name
City=IPresponse.city.name
if len(suggestionString)>0:
suggestRecord = suggestion(suggestionString,Country,City,IpAddress)
db.session.add(suggestRecord)
db.session.commit()
except Exception,e:return str(e)
return redirect("http://site/thankyou")
@app.teardown_appcontext
def shutdown_session(response_or_exc):
try:
if response_or_exc is None:
db.session.commit()
finally:
db.session.remove()
return response_or_exc
這裏是我的配置：
# -*- coding: utf-8 -*-
#NOTE:Replace bands with DB name
DEBUG = False
SECRET_KEY='key'
SQLALCHEMY_DATABASE_URI='mysql://user:[email protected]/sugeestion?charset=utf8'
的問題是，當主持人通過點擊按鈕來更改建議狀態頁面重新加載但狀態不會改變幾秒後我刷新然後建議狀態將被改變
更新 - 2 2016年5月： 我檢查了日誌，我發現2個錯誤發生有關DB
OperationalError: (_mysql_exceptions.OperationalError) (2006, 'MySQL server has gone away') [SQL: u'SELECT `User`.id AS `User_id`, `User`.`Username` AS `User_Username`, `User`.`Password` AS `User_Password`, `User`.`Permission` AS `User_Permission` \\nFROM `User` \\nWHERE `User`.id = %s'] [parameters: (1,)], referer: http://TheWebSite
和
StatementError: (sqlalchemy.exc.InvalidRequestError) Can't reconnect until invalid transaction is rolled back [SQL: u'SELECT count(%s) AS count_1 \\nFROM `suggestion` \\nWHERE `suggestion`.`Flag` = %s'] [parameters: [immutabledict({})]], referer: http://TheWebSite