class User(db.Model, UserMixin):
id = db.Column(db.Integer, primary_key=True)
username = db.Column(db.String(20), unique=True, nullable=False)
email = db.Column(db.String(120), unique=True, nullable=False)
image_file = db.Column(db.String(20),
nullable=False,
default='default.jpg')
password = db.Column(db.String(60), nullable=False)
posts = db.relationship('Post', backref='author', lazy=True)
bookmarks = db.relationship('Post',
secondary=user_bookmarks,
backref=db.backref('users', lazy='dynamic'))
comments = db.relationship('Comment', backref='commenter', lazy=True)
messages = db.relationship('Message',
backref='sender',
lazy='dynamic',
foreign_keys='Message.uidsender')
receiver = db.relationship('Message',
backref='received',
lazy='dynamic',
foreign_keys='Message.uidreceiver')
def __repr__(self):
return f"User('{self.username}', '{self.email}', '{self.image_file}' )"
def get_reset_token(self, expires_sec=1800):
s = Serializer(app.config['SECRET_KEY'], expires_sec)
return s.dumps({'user_id': self.id}).decode('utf-8')
@staticmethod
def verify_reset_token(token):
s = Serializer(app.config['SECRET_KEY'])
try:
user_id = s.loads(token)['user_id']
except:
return None
return User.query.get(user_id)
if user is None:
flash('invalid token or token has been expired', 'warning')
return redirect(url_for('reset_request'))
class Post(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(100), nullable=False)
summary = db.Column(db.String(100), nullable=False)
date_posted = db.Column(db.DateTime,
nullable=False,
default=datetime.utcnow)
content = db.Column(db.Text, nullable=False)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
upvotes = db.Column(db.Integer, default=0)
downvotes = db.Column(db.Integer, default=0)
comments = db.relationship('Comment',
secondary=post_comments,
backref=db.backref('posted_on', lazy='dynamic'))
def __repr__(self):
return f"User('{self.title}', '{self.date_posted}' )"
class Message(db.Model):
id = db.Column(db.Integer, primary_key=True)
uidsender = db.Column(db.Integer, db.ForeignKey('user.id'))
uidreceiver = db.Column(db.Integer, db.ForeignKey('user.id'))
text = db.Column(db.Text)
class Comment(db.Model):
id = db.Column(db.Integer, primary_key=True)
text = db.Column(db.Text)
user = db.Column(db.Integer, db.ForeignKey('user.id'))
from flask_script import Manager
from flask_migrate import Migrate, MigrateCommand
migrate = Migrate(app, db)
manager = Manager(app)
manager.add_command('db', MigrateCommand)
@login_manager.user_loader
def load_user(user_id):
return User.query.get(int(user_id))
user_bookmarks = db.Table(
'user_bookmarks', db.Column('user_id', db.Integer,
db.ForeignKey('user.id')),
db.Column('post_id', db.Integer, db.ForeignKey('post.id')))
post_comments = db.Table(
'post_comments', db.Column('post_id', db.Integer,
db.ForeignKey('post.id')),
db.Column('comment_id', db.Integer, db.ForeignKey('comment.id')))
class User(db.Model, UserMixin):
id = db.Column(db.Integer, primary_key=True)
username = db.Column(db.String(20), unique=True, nullable=False)
email = db.Column(db.String(120), unique=True, nullable=False)
image_file = db.Column(db.String(20),
nullable=False,