class Category(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(100), nullable=False, unique=True)
posts = db.relationship('Post', backref='category', lazy=True)
def __repr__(self):
return f'Category({self.name})'
def posts_count(self):
return len(self.posts)
class Post(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(length=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)
likes = db.relationship('Like', backref='likes', lazy=True)
comments = db.relationship('Comment', backref='comments', lazy=True)
def __repr__(self):
return f"Post('{self.title}', '{self.date_posted}')"
class User(db.Model):
id = db.Column(db.Integer, primary_key=True)
username = db.Column(db.String(length=20), unique=True, nullable=False)
email = db.Column(db.String(length=120), unique=True, nullable=False)
image_file = db.Column(db.String(length=20), nullable=False, default='default.jpg')
password = db.Column(db.String(60), nullable=False)
posts = db.relationship('Post', backref='author', lazy=True)
likes = db.relationship('Like', backref='liker', lazy=True)
comments = db.relationship('Comment', backref='commenter', lazy=True)
def __repr__(self):
return f"User('{self.username}', '{self.email}', '{self.image_file}')"
class Post(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(100), nullable=False)
body = db.Column(db.Text(), nullable=False)
created_time = db.Column(db.DateTime,
nullable=False,
default=datetime.now())
updated_time = db.Column(db.DateTime, nullable=True)
post_image = db.Column(db.String(20), nullable=True, default='default.jpg')
author_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
categroy_id = db.Column(db.Integer,
db.ForeignKey('category.id'),
nullable=False)
def __repr__(self):
return f"Post('{self.title}','{self.categroy_id}')"
class User(db.Model, UserMixin):
id = db.Column(db.Integer, primary_key=True)
public_id = db.Column(db.String(100), unique=True, nullable=False)
username = db.Column(db.String(12), unique=True, nullable=False)
email = db.Column(db.String(20), unique=True, nullable=False)
password = db.Column(db.String(60), nullable=False)
admin = db.Column(db.Boolean, nullable=False, default=False)
active = db.Column(db.Boolean, nullable=False, default=True)
image_file = db.Column(db.String(20), nullable=True, default='default.jpg')
posts = db.relationship('Post', backref='author', lazy=True)
created_time = db.Column(db.DateTime,
nullable=False,
default=datetime.now())
def __repr__(self):
return f"User('{self.username}','{self.email}',active:'{self.active}')"
@staticmethod
def auth_encode_token(user_id):
''' Generate token to auth'''
data = {
'user_id': user_id,
'exp': datetime.utcnow() + timedelta(minutes=30),
'iat': datetime.utcnow() # issued at
}
return jwt.encode(data, key)
@staticmethod
def auth_decode_token(auth_token):
'''Decode token'''
try:
data = jwt.decode(auth_token, key)
return data['user_id']
except jwt.ExpiredSignatureError:
return 'Signature expired. Please log in again.'
except jwt.InvalidTokenError:
return 'Invalid token.'
class Like(db.Model):
id = db.Column(db.Integer, primary_key=True)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
post_id = db.Column(db.Integer, db.ForeignKey('post.id'), nullable=False)
class Comment(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(length=20), nullable=False)
text = db.Column(db.Text, nullable=False)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
post_id = db.Column(db.Integer, db.ForeignKey('post.id'), nullable=False)