class Article(db.Model): url = db.Column(db.String(2048), primary_key=True) source = db.Column(db.String(100)) author = db.Column(db.String(70)) title = db.Column(db.String(250), nullable=False) description = db.Column(db.String(1000)) thumbnail_url = db.Column(db.String(2048), nullable=False, default="/static/default_thumbnail.jpg") publish_date = db.Column(db.DateTime) chars_num = db.Column(db.Integer) is_fake_news = db.Column(db.Boolean, default=False) time_added = db.Column(db.DateTime, nullable=False, default=datetime.now()) # referenced by other tables: articleTags = db.relationship('ArticleTag', backref='ArticleTag_article', lazy=True) articleKeywords = db.relationship('ArticleKeyword', backref='ArticleKeyword_article', lazy=True) articleActions = db.relationship('ArticleAction', backref='ArticleAction_article', lazy=True) def __repr__(self): return f"Article({self.url})"
class User(UserMixin, db.Model): id = db.Column(db.Integer, primary_key=True) username = db.Column(db.String(64), index=True, unique=True) email = db.Column(db.String(120), index=True, unique=True) password_hash = db.Column(db.String(128)) posts = db.relationship('Post', backref='author', lazy='dynamic') about_me = db.Column(db.String(140)) last_seen = db.Column(db.DateTime, default=datetime.utcnow) 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}>' def set_password(self, password): self.password_hash = generate_password_hash(password) def check_password(self, password): return check_password_hash(self.password_hash, password) def avatar(self, size): digest = md5(self.email.lower().encode('utf-8')).hexdigest() return f'https://www.gravatar.com/avatar/{digest}?d=identicon&s={size}'
class User(UserMixin, db.Model): __tablename__ = 'user' id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(120), index=True, unique=False) email = db.Column(db.String(120), index=True, unique=True) paths = db.relationship('Path', backref='creator', lazy='dynamic') steps = db.relationship('Step', backref='creator', lazy='dynamic') def __repr__(self): return '<User {}>'.format(self.email)
class User(db.Model, UserMixin ): # This class inherits from both 'db.model' and 'UserMixin' id = db.Column(db.Integer, primary_key=True) username = db.Column(db.String(100), unique=True, nullable=False) password = db.Column(db.String, nullable=False) firstname = db.Column(db.String(100), nullable=False) lastname = db.Column(db.String(100), nullable=False) email = db.Column(db.String(120), nullable=False) statesVisited = db.relationship('State', secondary=statesVisited, lazy='subquery', backref=db.backref('users', lazy=True)) pictures = db.relationship('Picture') def __repr__( self ): # This method already has default behavior defined for all classes. This method returns a value to represent this class return f"User('{self.firstname}', '{self.lastname}')"
class Path(db.Model): __tablename__ = 'path' id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(120), index=True, unique=False) description = db.Column(db.String(400), index=True, unique=False) is_public = db.Column(db.Boolean, default=True, nullable=False) timestamp = db.Column(db.DateTime, index=True, default=datetime.utcnow) user_id = db.Column(db.Integer, db.ForeignKey('user.id')) steps = db.relationship('Step', backref='path', lazy='dynamic') def __repr__(self): return '<Path {}>'.format(self.name)
class Tag(db.Model): text = db.Column(db.String(500), primary_key=True) is_confirmed = db.Column(db.Boolean, nullable=False) time_added = db.Column(db.DateTime, nullable=False, default=datetime.now()) # referenced by other tables: articleTags = db.relationship('ArticleTag', backref='ArticleTag_tag', lazy=True) def __repr__(self): return f"Tag('{self.text}', {'confirmed' if self.is_confirmed else 'potential'})"
class User(UserMixin, db.Model): ''' db.Model is a base class for all models from flask-sqlalchemy. The UserMixin class includes generic implementations that are appropriate for most user model classes( is_authenticated, is_active etc.) ''' id = db.Column(db.Integer, primary_key=True) username = db.Column(db.String(64), index=True, unique=True) email = db.Column(db.String(120), index=True, unique=True) password_hash = db.Column(db.String(128)) # This field is defined only here for the one-to-many relationship (one user, multiple posts): posts = db.relationship('Post', backref='author', lazy='dynamic') about_me = db.Column(db.String(140)) last_seen = db.Column(db.DateTime, default=datetime.utcnow) # Defining the followers table relationship; the .c. refers to the 'column' in the table: 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}>' def set_password(self, password): self.password_hash = generate_password_hash(password) def check_password(self, password): return check_password_hash(self.password_hash, password) def avatar(self, size): # Encoding the string as bytes and then passing it to the hash function digest = md5(self.email.lower().encode('utf-8')).hexdigest() # The 'identicon' part is added to generate a default avatar for users who don't have one return f'https://gravatar.com/avatar/{digest}?d=identicon&s={size}' 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 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) # User's own posts return followed.union(own).order_by(Post.timestamp.desc()) def get_reset_password_token(self, expires_in=600): return jwt.encode( {'reset_password': self.id, 'exp': time() + expires_in}, current_app.config['SECRET_KEY'], algorithm = 'HS256').decode('utf-8') @staticmethod def verify_reset_password_token(token): try: id = jwt.decode(token, current_app.config['SECRET_KEY'], algorithms=['HS256'])['reset_password'] except: return return User.query.get(id)
class State(db.Model): id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(100), nullable=False) abreviation = db.Column(db.String(2), nullable=False, unique=True) pictures = db.relationship('Picture')
class OAuth(OAuthConsumerMixin, db.Model): provider_user_id = db.Column(db.String(256), unique=True, nullable=False) user_id = db.Column(db.Integer, db.ForeignKey(User.id), nullable=False) user = db.relationship(User)
class User(UserMixin, db.Model): id = db.Column(db.Integer, primary_key=True) username = db.Column(db.String(50), index=True, unique=True) email = db.Column(db.String(50), index=True, unique=True) password_hash = db.Column(db.String(50), index=True, unique=True) aboutme = db.Column(db.String(400)) last_seen = db.Column(db.DateTime, default=datetime.utcnow) posts = db.relationship('Post', backref='author', 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 "< user {}>".format(self.username) def avatar(self, size): digest = md5(self.email.lower().encode('utf-8')).hexdigest() return 'https://www.gravatar.com/avatar/{}?d=identicon&s={}'.format( digest, size) def check_password(self, password): return check_password_hash(self.password_hash, password) def set_password(self, password): self.password_hash = generate_password_hash(password) ''' 判断是否关注 ''' def is_following(self, user): return self.followed.filter( followers.c.followed_id == user.id).count() > 0 ''' 关注用户 ''' def follow(self, user): if not self.is_following(user): self.followed.append(user) ''' 取消关注 ''' def unfollow(self, user): if self.is_following(user): self.followed.remove(user) ''' 获取关注用户以及自己的文章,发布时间倒序排列 ''' def followed_posts(self): # followed_post = Post.query.join("followers", 'followers.c.followed_id=Post.id').filter(followers.c.follower_id=self.id).order_by(Post.timestamp.desc()) # return followed_post # 没有要 order by 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.timestamp.desc()) # 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.timestamp.desc()) def get_reset_password_token(self, expire_in=600): return jwt.encode( { 'reset_password': self.id, 'exp': time.time() + expire_in }, app.config['SECRET_KEY'], algorithm='HS256').decode('utf-8') @staticmethod def verify_reset_password_token(token): try: id = jwt.decode(token, app.config['SECRET_KEY'], algorithm="HS256")['reset_password'] except: return return User.query.get(id)