学习随笔 Flask-Mail和Flask-SQLALchemy

pycharm激活码炸了。。百度了个破解方法。

https://blog.csdn.net/u014044812/article/details/78727496

亲测只有方法三还能用，方法一二都凉了。

使用Flask-Mail提供电子邮件支持

from flask import Flask
from flask_mail import Mail

app = Flask(__name__)
app.config.update(
    MAIL_SERVER = 'smtp.qq.com',
    MAIL_PORT = 587,
    MAIL_USE_TLS = True,  # 启用传输层安全协议TLS
    MAIL_USERNAME = '5*******[email protected]',
    MAIL_PASSWORD = '**********' # 邮件授权码，非密码  http://service.mail.qq.com/cgi-bin/help?subtype=1&&id=28&&no=1001256
)

mail = Mail(app)

from flask_mail import Message
from hello import mail, app

msg = Message('biaoti', sender='5******[email protected]', recipients=['5*******[email protected]'])
msg.body = 'just for test, hahaha'

# Flask-Mail中send()函数使用current_app，需激活应用上下文
# https://www.jianshu.com/p/7a7efbb7205f
with app.app_context():
    mail.send(msg)

使用Flask-SQLALchemy在视图函数中操作数据库

import os
from flask import Flask, render_template, session, redirect, url_for
from flask_wtf import Form
from wtforms import StringField, SubmitField
from wtforms.validators import Required
from flask_sqlalchemy import SQLAlchemy
from flask_bootstrap import Bootstrap

basedir = os.path.abspath(os.path.dirname(__file__))

app = Flask(__name__)
app.config['SECRET_KEY'] = 'hard to guess string' # CSRF保护需要一个密钥
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///' + os.path.join(basedir, 'data.sqlite')
app.config['SQLALCHEMY_COMMIT_ON_TEARDOWN'] = True

db = SQLAlchemy(app)
bootstrap = Bootstrap(app)

class Role(db.Model):
    __tablename__ = 'roles'  # 表名
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(64), unique=True)

    users = db.relationship('User', backref='role')

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


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

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

class NameForm(Form):  # 简单的WEB单表
    name = StringField('What is your name?', validators=[Required()])
    submit = SubmitField('Submit')

@app.route('/', methods=['GET', 'POST'])
def index():
    form = NameForm()
    if form.validate_on_submit():
        user = User.query.filter_by(username=form.name.data).first()
        if user is None:
            user = User(username=form.name.data)
            db.session.add(user)
            session['known'] = False
        else:
            session['known'] = True
        session['name'] = form.name.data
        form.name.data = ''
        return redirect(url_for('index'))
    return render_template('index.html', form=form, name=session.get('name'), known=session.get('known', False))

if __name__ == '__main__':
    app.run(debug=True)

学习随笔 Flask-Mail和Flask-SQLALchemy

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