class Category(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(30), unique=True)
posts = db.relationship('Post', back_populates='category')
def delete(self):
default_category = Category.query.get(1)
posts = self.posts[:]
for post in posts:
post.category = default_category
db.session.delete(self)
db.session.commit()
class Admin(db.Model, UserMixin):
id = db.Column(db.Integer, primary_key=True)
username = db.Column(db.String(20))
password_hash = db.Column(db.String(128))
blog_title = db.Column(db.String(60))
blog_sub_title = db.Column(db.String(100))
name = db.Column(db.String(30))
school = db.Column(db.String(60))
email = db.Column(db.String(30))
location = db.Column(db.String(30))
about = db.Column(db.Text)
def set_password(self, password):
# Admin Database doesn't save the password itself, but the hash_code of the password
self.password_hash = generate_password_hash(password)
def validate_password(self, password):
return check_password_hash(self.password_hash, password)
class Comment(db.Model):
id = db.Column(db.Integer, primary_key=True)
author = db.Column(db.String(30))
email = db.Column(db.String(254))
site = db.Column(db.String(255))
body = db.Column(db.Text)
from_admin = db.Column(db.Boolean, default=False)
reviewed = db.Column(db.Boolean, default=False)
timestamp = db.Column(db.DateTime, default=datetime.utcnow, index=True)
replied_id = db.Column(db.Integer, db.ForeignKey('comment.id'))
post_id = db.Column(db.Integer, db.ForeignKey('post.id'))
post = db.relationship('Post', back_populates='comments')
replies = db.relationship('Comment',
back_populates='replied',
cascade='all, delete-orphan')
replied = db.relationship('Comment',
back_populates='replies',
remote_side=[id])
class Post(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(60))
cover_img_url = db.Column(db.String(500))
body = db.Column(db.Text)
timestamp = db.Column(db.DateTime, default=datetime.utcnow, index=True)
can_comment = db.Column(db.Boolean, default=True)
category_id = db.Column(db.Integer, db.ForeignKey('category.id'))
# TODO what does the back_populates mean?
# TODO what's the role of db.relationship
category = db.relationship('Category', back_populates='posts')
comments = db.relationship('Comment',
back_populates='post',
cascade='all, delete-orphan')
class Link(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(30))
url = db.Column(db.String(255))