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flask 验证是否安全的URL格式(flask 88)

def is_safe_url(target): ref_url = urlparse(request.host_url) test_url = urlparse(urljoin(request.host_url, target)) return test_url.scheme in ('http', 'https') and ref_url.netloc == test_url.netloc

2019-08-20

7680

flask 邮件发送页面(flask 32)

flask html 编程算法 flash

{% extends 'base.html' %} {% from 'macros.html' import form_field %}

2019-08-13

5040

flask 数据库增删改查(flask 27)

create note=Note() db.session.add(note) db.session.commit()

2019-08-13

7610

flask 一个页面多个提交按钮(flask 23)

html flash jquery python

class NewPostForm(FlaskForm): title = StringField('Title', validators=[DataRequired(), Length(1, 50)]) body = TextAreaField('Body', validators=[DataRequired()]) save = SubmitField('Save') publish = SubmitField('Publish')

2019-08-13

3.1K0

flask 页面消息提醒flash

html flash bootstrap 编程算法

//flash {% for message in get_flashed_messages() %} <div class="alert alert-warning"> <button type="button" class="close" data-dismiss="alert">×</button> {{ message }} </div> {% endfor %}

2019-07-07

9790

python flask web开发实战页面消息提醒常用

from flask import Flask, render_template, session, redirect, url_for, flash @app.route('/', methods=['GET', 'POST']) def index(): form = NameForm() if form.validate_on_submit(): old_name = session.get('name') if old_name is not None and old_name != form.name.data: flash('Looks like you have changed your name!') session['name'] = form.name.data return redirect(url_for('index')) return render_template('index.html',form = form, name = session.get('name'))

2019-07-05

9680

python flask web 博客实例关注模块 3

1 app/models.py class Follow(db.Model): tablename = 'follows' follower_id = db.Column(db.Integer, db.ForeignKey('users.id'),primary_key=True) followed_id = db.Column(db.Integer, db.ForeignKey('users.id'),primary_key=True) timestamp = db.Column(db.DateTime, default=datetime.utcnow) class User(UserMixin, db.Model): def init(self, **kwargs): # ... self.follow(self) # ... followed = db.relationship('Follow',foreign_keys=[Follow.follower_id],backref=db.backref('follower', lazy='joined'),lazy='dynamic',cascade='all, delete-orphan') followers = db.relationship('Follow',foreign_keys=[Follow.followed_id],backref=db.backref('followed', lazy='joined'),lazy='dynamic',cascade='all, delete-orphan') def follow(self, user): if not self.is_following(user): f = Follow(follower=self, followed=user) db.session.add(f) def unfollow(self, user): f = self.followed.filter_by(followed_id=user.id).first() if f: db.session.delete(f) def is_following(self, user): return self.followed.filter_by( followed_id=user.id).first() is not None def is_followed_by(self, user): return self.followers.filter_by( follower_id=user.id).first() is not None @property def followed_posts(self): return Post.query.join(Follow, Follow.followed_id == Post.author_id).filter(Follow.follower_id == self.id) @staticmethod def add_self_follows(): for user in User.query.all(): if not user.is_following(user): user.follow(user) db.session.add(user) db.session.commit()

2019-07-05

3300

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