class User(db.Model, UserMixin):
id = db.Column(db.Integer, primary_key=True)
public_id = db.Column(db.String(50), unique=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)
admin = db.Column(db.Boolean, default=False)
posts = db.relationship('Post', backref="author", lazy=True)
items = db.relationship('Item', backref="checker", lazy=True)
active = db.Column(db.Boolean, default=False)
def get_reset_token(self, expires_sec=1800):
s = Serializer(current_app.config['SECRET_KEY'], expires_sec)
return s.dumps({'user_id': self.id}).decode('utf-8')
@staticmethod
def verify_reset_token(token):
s = Serializer(current_app.config['SECRET_KEY'])
try:
user_id = s.loads(token)['user_id']
except:
return None
return User.query.get(user_id)
def __repr__(self):
return f"User('{self.username}', '{self.email}', '{self.image_file}')"
class Location(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(50), unique=True, nullable=False)
from_loc = db.relationship(
'Movement',
backref='to',
lazy=True,
primaryjoin='Movement.from_location_id == Location.id')
to_loc = db.relationship(
'Movement',
backref='from',
lazy=True,
primaryjoin='Movement.to_location_id == Location.id')
class Product(db.Model):
id = db.Column(db.Integer(), primary_key=True)
name = db.Column(db.String(200), nullable=False, unique=True)
product_movement = db.relationship('ProductMovement',
backref='product',
lazy=True)
def __repr__(self):
return "{}".format(self.id)
class OrderDetail(db.Model):
#订单详情
id = db.Column(db.Integer, primary_key=True)
order_id = db.Column(db.String(30), index=True)
goods_id = db.Column(db.Integer, db.ForeignKey('goods.id'))
#goods_id = db.Column(db.Integer)
goods_name = db.relationship('Goods', back_populates='order_id')
goods_quantity = db.Column(db.Integer)
goods_amount = db.Column(db.Float)
class Goods(db.Model):
#商品信息表
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(30), unique=True)
price = db.Column(db.Float)
order_id = db.relationship('OrderDetail', back_populates='goods_name')
def __repr__(self):
return '<Goods %r>' % self.name
class Supplyer(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(100), nullable=False)
contact_number = db.Column(db.String, nullable=True)
address = db.Column(db.Text, nullable=True)
timestamp = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
items = db.relationship('Item', backref="distributor", lazy=True)
def __repr__(self):
return f"Post('{self.name}', '{self.contact_number}')"
class ProductMovement(db.Model):
__tablename__ = 'product_movement'
id = db.Column(db.Integer(), primary_key=True)
product_id = db.Column(db.Integer(),
db.ForeignKey('product.id'),
nullable=False)
from_location_id = db.Column(db.Integer(),
db.ForeignKey('location.id'),
nullable=True)
to_location_id = db.Column(db.Integer(),
db.ForeignKey('location.id'),
nullable=True)
from_location = db.relationship('Location',
foreign_keys=[from_location_id])
to_location = db.relationship('Location', foreign_keys=[to_location_id])
quantity = db.Column(db.Integer)
def __repr__(self):
return "{}".format(self.id)
class Product(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(50), unique=True, nullable=False)
moved_product = db.relationship('Movement', backref='item', lazy=True)