class Deal(db.Model):
# 1 user to multi deals
id = db.Column(db.Integer, primary_key=True)
time = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
by_id = db.Column(db.Integer, db.ForeignKey('user.id'))
item_id = db.Column(db.Integer, db.ForeignKey('post.id'))
class Deal(db.Model):
# 1 user to multi deals
id = db.Column(db.Integer, primary_key=True)
time = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
# link the deal to the user who makes the deal
by_id = db.Column(db.Integer, db.ForeignKey('user.id'))
by = db.relationship('User', backref='deals')
# link the deal to the item
item_id = db.Column(db.Integer, db.ForeignKey('post.id'))
item = db.relationship('Post', backref='deals')
admin = db.Column(db.Integer, db.ForeignKey('admin.id'))
class User(db.Model, UserMixin):
__searchable__ = ['username']
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)
password = db.Column(db.String(60), nullable=False)
image_file = db.Column(db.String,
nullable=False,
default='default profile.jpg')
# relationships
admin = db.Column(db.Integer, db.ForeignKey('admin.id'))
class Category(db.Model):
__tablename__ = 'category'
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(30), unique=True)
description = db.Column(db.String(100), nullable=True)
image_file = db.Column(db.String,
nullable=False,
default='default category.jpg')
#relationships
post_id = db.relationship("Post",
secondary=post_category_collections,
backref='categories',
lazy='dynamic')
admin = db.Column(db.Integer, db.ForeignKey('admin.id'))
class Post(db.Model):
__tablename__ = 'post'
__searchable__ = ['title', 'subtitle', 'content']
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(20), nullable=False)
subtitle = db.Column(db.String(100), nullable=False)
content = db.Column(db.Text, nullable=False)
date_posted = db.Column(db.DateTime,
nullable=False,
default=datetime.utcnow)
price = db.Column(db.Integer, nullable=False, default=0)
image_file = db.Column(db.String,
nullable=False,
default='default post.jpg')
likes = db.Column(db.Integer, nullable=True, default=0)
#relationships
admin = db.Column(db.Integer, db.ForeignKey('admin.id'))
# category_id = db.relationship("Category", secondary= post_category_collections, backref = "posts", lazy = 'dynamic')
category_id = db.Column(db.Integer, nullable=True, default='Unclassified')
time = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
# link the deal to the user who makes the deal
by_id = db.Column(db.Integer, db.ForeignKey('user.id'))
by = db.relationship('User', backref='deals')
# link the deal to the item
item_id = db.Column(db.Integer, db.ForeignKey('post.id'))
item = db.relationship('Post', backref='deals')
admin = db.Column(db.Integer, db.ForeignKey('admin.id'))
# post 和 category 实际为多对多，应该创建关联表进行连接
post_category_collections = db.Table(
"post_category_collections",
db.Column('post_id', db.Integer, db.ForeignKey("post.id")),
db.Column('category_id', db.Integer, db.ForeignKey("category.id")))
class Post(db.Model):
__tablename__ = 'post'
__searchable__ = ['title', 'subtitle', 'content']
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(20), nullable=False)
subtitle = db.Column(db.String(100), nullable=False)
content = db.Column(db.Text, nullable=False)
date_posted = db.Column(db.DateTime,
nullable=False,
default=datetime.utcnow)
price = db.Column(db.Integer, nullable=False, default=0)
image_file = db.Column(db.String,
