Flasko.py

# -*- coding: utf-8 -*-
import os
from flask_script import Manager, Shell
from flask import Flask, render_template, url_for, flash, redirect, abort, request, session
from flask_bootstrap import Bootstrap
# from flask.ext.nav import Nav
from flask_wtf import Form
from wtforms import StringField, SubmitField, PasswordField, BooleanField
from wtforms.validators import Email, DataRequired, EqualTo, Length
from flask_login import LoginManager, login_user,login_required, logout_user, UserMixin, current_user
from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate, MigrateCommand
from werkzeug.security import generate_password_hash, check_password_hash

basedir = os.path.abspath(os.path.dirname(__file__))
app = Flask(__name__)
manager = Manager(app)
app.config['SQLALCHEMY_DATABASE_URI'] = \
    'sqlite:///' + os.path.join(basedir, 'data.sqlite')
app.config['SQLALCHEMY_COMMIT_ON_TEARDOWN'] = True

app.config['SECRET_KEY'] = 'lambdaplus'
bootstrap = Bootstrap(app)
#nav = Nav(app)
login_manager = LoginManager()
login_manager.session_protection = 'strong'
login_manager.login_view = 'login'
login_manager.init_app(app)
db = SQLAlchemy(app)
migrate = Migrate(app, db)


class Role(db.Model):
    __tablename__ = 'roles'
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(64), unique=True)
    users = db.relationship('User', backref='role', lazy='dynamic')

    def __repr__(self):
        return '<Role %r>' % self.name


class User(UserMixin, db.Model):
    __tablename__ = 'users'
    id = db.Column(db.Integer, primary_key=True)
    email = db.Column(db.String(64), unique=True, index=True)
    username = db.Column(db.String(64), unique=True, index=True)
    role_id = db.Column(db.Integer, db.ForeignKey('roles.id'))
    password = db.Column(db.String(128))

    def __repr__(self):
        return '<User %r>' % self.username

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


class NameForm(Form):
    name = StringField('What is your name?', validators=[DataRequired()])
    submit = SubmitField('submit')


class RegisterForm(Form):
    email = StringField('Email', validators=[DataRequired(), Email()])
    username = StringField('Username', validators=[DataRequired()])
    password = PasswordField('Password', validators=[DataRequired(),
                                                     EqualTo('confirm',
                                                             message='Must be match ')])
    confirm = PasswordField('Confirm password', validators=[DataRequired()])
    accept_tos = BooleanField('I accept the TOS', [DataRequired()])

    submit = SubmitField('Register Now')


class LoginForm(Form):
    email = StringField('Email', validators=[DataRequired(),
                                             Length(1, 64),
                                             Email()])
    #username = StringField('Username', validators=[DataRequired()])
    password = PasswordField('Password', validators=[DataRequired()])
    remember_me = BooleanField('Keep me logged in')
    submit = SubmitField('Log In')


def make_shell_context():
    return dict(app=app, db=db, User=User, Role=Role)


manager.add_command("shell", Shell(make_context=make_shell_context))
manager.add_command('db', MigrateCommand)


@app.route('/')
def index():
    return render_template('index.html')


@app.route('/register', methods=['GET', 'POST'])
def register():
    form = RegisterForm()
    if form.validate_on_submit():
        user = User(email=form.email.data,
                    username=form.username.data,
                    password=form.password.data)
        db.session.add(user)
        #db.session.commit()
        flash('Thanks for registering!')
        return redirect(url_for('login'))

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


@app.route('/login', methods=['GET', 'POST'])
def login():
    form = LoginForm()
    if form.validate_on_submit():
        user = User.query.filter_by(email=form.email.data).first()
        if user is not None:
            login_user(user, form.remember_me.data)
            return redirect(request.args.get('next') or url_for('index'))
        flash('Invalid username or username')

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


@app.route('/logout')
@login_required
def logout():
    logout_user()
    flash('You have been logged out.')
    return redirect(url_for('login'))


@app.route('/user/<name>')
def user(name):
    return render_template('user.html', name=name)


@app.errorhandler(404)
def page_not_found(e):
    return render_template('404.html'), 404

@app.errorhandler(500)
def internal_server_error(e):
    return render_template('500.html'), 500

if __name__ == '__main__':
    manager.run()