Question

我会将整个主应用发布到一个文件中，而我不知道模板或主python文件中的错误

import datetime

from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_login import LoginManager
from flask_bcrypt import Bcrypt
from sqlalchemy.ext.hybrid import hybrid_property, hybrid_method

app = Flask(__name__)

app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///.../snap.db'
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
app.config['SECRET_KEY'] = 'putheretrjurtrandom---secretkey'

db = SQLAlchemy(app)

login_manager = LoginManager()
login_manager.init_app(app)
flask_bcrypt = Bcrypt(app)

class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(40),unique=True)
    email = db.Column(db.String(255),unique=True)
    _password = db.Column(db.String(60))
    created_on = db.Column(db.DateTime,default=datetime.datetime.utcnow)

    def __repr__(self):
        return  "< User {!r} >".format(self.username)

    def is_authenticated(self):
        return True

    def is_active(self):
        return True

    def is_anonymous(self):
        return False

    def get_id(self):
        return unicode(self.id)

    @hybrid_property
    def password(self):
        return self._password

    @password.setter
    def password(self,password):
        self._password = flask_bcrypt.generate_password_hash(password)


@login_manager.user_loader
def load_user(user_id):
    return User.query.get(int(user_id))

#Forms
from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField
from wtforms.validators  import DataRequired, Length

class LoginForm(FlaskForm):
    username = StringField('username', validators=[DataRequired()])
    password = PasswordField('password',validators=[DataRequired(), Length(min=6)])

#views
from flask import flash, render_template, url_for, redirect, g
from flask_login import  login_user,logout_user, current_user



@app.route('/login', methods=['GET','POST'])
def login():
    if current_user.is_authenticated:
        return redirect(url_for('listing'))
    form = LoginForm()
    if form.validate_on_submit():
        user = User.query.filter_by(username=form.username.data).first()
        if not user:
            flash('No such User exists')
            return render_template('login.html',form=form)
        if (not flask_bcrypt.check_password_hash(user.password,form.password.data)):
            flash("Invalid Password.")
            return render_template('login.html',form=form)
        login_user(user,remember=True)
        flash("you have logged in successfully.")
        return redirect(url_for('listing'))

    return render_template('login.html', form=form)


@app.route('/logout',methods=['GET'])
def logout():
    logout_user(user)
    return redirect(url_for('listing'))


@app.route('/hello')
def hello():
    return 'Hello your name!!'

当我运行小型应用程序时，尝试登录时出现主要错误，但登录页面上出现错误 如何解决这个问题？我试图解决并修复模板文件，但没有解决方案？

Flask中的“ TypeError：'函数'对象不可迭代”错误

0 个答案: