class Comment(db.Model):
id = db.Column(db.Integer, primary_key=True)
body = db.Column(db.String(100), nullable=False)
timestamp = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
post_id = db.Column(db.Integer, db.ForeignKey('post.id'), nullable=False)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
def __repr__(self):
return f"Comment('{self.body}', '{self.timestamp}')"
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)
def __repr__(self):
return f"User('{self.username}', '{self.email}', '{self.image_file}')"
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)
comments = db.relationship('Comment', backref='author', lazy=True)
liked = db.relationship('Post', secondary=post_likes,
backref = db.backref('likers', lazy='dynamic'), lazy='dynamic')
followed = db.relationship('User',
secondary=followers,
primaryjoin=(followers.c.follower_id == id),
secondaryjoin=(followers.c.followed_id == id),
backref=db.backref('followers', lazy='dynamic'),
lazy='dynamic')
def __repr__(self):
return f"User('{self.username}', '{self.email}', '{self.image_file}')"
def like(self, post):
if not self.is_liking(post):
self.liked.append(post)
def unlike(self, post):
if self.is_liking(post):
self.liked.remove(post)
def is_liking(self, post):
return db.session.execute("SELECT COUNT(*) FROM post_likes WHERE user_id = :user_id AND post_id = :post_id", {'user_id': self.id, 'post_id': post.id}).fetchone()[0] > 0
def follow(self, user):
if not self.is_following(user):
self.followed.append(user)
def unfollow(self, user):
if self.is_following(user):
self.followed.remove(user)
def is_following(self, user):
return self.followed.filter(followers.c.followed_id == user.id).count() > 0
def is_followingbyid(self,user_id):
return self.followed.filter(followers.c.followed_id == user_id).count() > 0
def followed_posts(self):
followed = Post.query.join(
followers, (followers.c.followed_id == Post.user_id)).filter(
followers.c.follower_id == self.id)
own = Post.query.filter_by(user_id=self.id)
return followed.union(own).order_by(Post.date_posted.desc())
class Post(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(120), nullable=False)
date_posted = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
content = db.Column(db.Text, nullable=False)
track = db.Column(db.String(20), nullable=False)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
tags = db.relationship('Tag', secondary=post_tags, backref=db.backref('posts', lazy='dynamic'), lazy='dynamic')
comments = db.relationship('Comment', backref='article', lazy=True)
def __repr__(self):
return f"Post('{self.title}', '{self.track}', '{self.date_posted}')"
class Tag(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(120), nullable=False)
def __repr__(self):
return f"Tag('{self.name}')"
from datetime import datetime
from flask_login import UserMixin
from sonnet import db, login_manager
@login_manager.user_loader
def load_user(user_id):
return User.query.get(int(user_id))
post_likes = db.Table('post_likes',
db.Column('user_id',db.Integer,db.ForeignKey('user.id')),
db.Column('post_id',db.Integer,db.ForeignKey('post.id')))
followers = db.Table('followers',
db.Column('follower_id', db.Integer, db.ForeignKey('user.id')),
db.Column('followed_id', db.Integer, db.ForeignKey('user.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, default='default.jpg')
password = db.Column(db.String(60), nullable=False)
posts = db.relationship('Post', backref='author', lazy=True)
comments = db.relationship('Comment', backref='author', lazy=True)
liked = db.relationship('Post', secondary=post_likes,
backref = db.backref('likers', lazy='dynamic'), lazy='dynamic')
followed = db.relationship('User',
secondary=followers,
primaryjoin=(followers.c.follower_id == 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,
default='default.jpg')
password = db.Column(db.String(60), nullable=False)
posts = db.relationship('Post', backref='author', lazy=True)
def __repr__(self):
return f"User('{self.username}', '{self.email}', '{self.image_file}')"
post_tags = db.Table(
'post_tags', db.Column('tag_id', db.Integer, db.ForeignKey('tag.id')),
db.Column('post_id', db.Integer, db.ForeignKey('post.id')))
class Post(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(120), nullable=False)
date_posted = db.Column(db.DateTime,
nullable=False,
default=datetime.utcnow)
content = db.Column(db.Text, nullable=False)
track = db.Column(db.String(20), nullable=False)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
tags = db.relationship('Tag',
secondary=post_tags,
backref=db.backref('posts', lazy='dynamic'),
