haldis/app/models.py

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from datetime import datetime
from collections import defaultdict
from app import db
# Create database models
class User(db.Model):
id = db.Column(db.Integer, primary_key=True)
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username = db.Column(db.String(80), unique=True, nullable=False)
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admin = db.Column(db.Boolean)
bias = db.Column(db.Integer)
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runs = db.relation('Order', backref='courrier', primaryjoin='Order.courrier_id==User.id',
foreign_keys='Order.courrier_id')
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orderItems = db.relationship('OrderItem', backref='user', lazy='dynamic')
def configure(self, username, admin, bias):
self.username = username
self.admin = admin
self.bias = bias
def is_authenticated(self):
return True
def is_active(self):
return True
def is_admin(self):
return self.admin
def is_anonymous(self):
return False
def get_id(self):
try:
return unicode(self.id) # python 2
except NameError:
return str(self.id) # python 3
def __repr__(self):
return '%s' % self.username
class Location(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(120), nullable=False)
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address = db.Column(db.String(254))
website = db.Column(db.String(120))
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telephone = db.Column(db.String(20), nullable=True)
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products = db.relationship('Product', backref='location', lazy='dynamic')
orders = db.relationship('Order', backref='location', lazy='dynamic')
def configure(self, name, address, website):
self.name = name
self.address = address
self.website = website
def __repr__(self):
return '%s' % (self.name)
class Product(db.Model):
id = db.Column(db.Integer, primary_key=True)
location_id = db.Column(db.Integer, db.ForeignKey('location.id'))
name = db.Column(db.String(120), nullable=False)
price = db.Column(db.Integer, nullable=False)
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orderItems = db.relationship('OrderItem', backref='product', lazy='dynamic')
def configure(self, location, name, price):
self.location = location
self.name = name
self.price = price
def __repr__(self):
return '%s (€%d)from %s' % (self.name, self.price/100, self.location or 'None')
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class Order(db.Model):
id = db.Column(db.Integer, primary_key=True)
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courrier_id = db.Column(db.Integer, nullable=True)
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location_id = db.Column(db.Integer, db.ForeignKey('location.id'))
starttime = db.Column(db.DateTime)
stoptime = db.Column(db.DateTime)
public = db.Column(db.Boolean, default=True)
items = db.relationship('OrderItem', backref='order', lazy='dynamic')
def configure(self, courrier, location, starttime, stoptime):
self.courrier = courrier
self.location = location
self.starttime = starttime
self.stoptime = stoptime
def __repr__(self):
return 'Order %d @ %s' % (self.id, self.location.name or 'None')
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def group_by_user(self):
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group = dict()
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for item in self.items:
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user = group.get(item.get_name(), dict())
user["total"] = user.get("total", 0) + item.product.price
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user["to_pay"] = user.get("to_pay", 0) + item.product.price if not item.paid else 0
user["paid"] = user.get("paid", True) and item.paid
user["products"] = user.get("products", []) + [item.product]
group[item.get_name()] = user
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return group
def group_by_product(self):
group = defaultdict(int)
for item in self.items:
group[item.product.name] += 1
return group
def can_close(self, user_id):
if self.stoptime and self.stoptime < datetime.now():
return False
user = None
if user_id:
user = User.query.filter_by(id=user_id).first()
print(user)
if self.courrier_id == user_id or (user and user.is_admin()):
return True
return False
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class OrderItem(db.Model):
id = db.Column(db.Integer, primary_key=True)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'))
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order_id = db.Column(db.Integer, db.ForeignKey('order.id'), nullable=False)
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product_id = db.Column(db.Integer, db.ForeignKey('product.id'))
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paid = db.Column(db.Boolean, default=False)
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name = db.Column(db.String(120))
def configure(self, user, order, product):
self.user = user
self.order = order
self.product = product
def get_name(self):
if self.user_id is not None and self.user_id > 0:
return self.user.username
return self.name
def __repr__(self):
return 'Order %d: %s wants %s' % (self.order_id or 0, self.get_name(), self.product.name or 'None')
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def can_delete(self, order_id, user_id, name):
if int(self.order_id) != int(order_id):
return False
if self.order.stoptime and self.order.stoptime < datetime.now():
return False
if self.user_id == user_id or self.name == name:
return True
return False