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116 lines
4.3 KiB
Python
116 lines
4.3 KiB
Python
from django.db import models, DataError
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from django.utils.translation import ugettext_lazy as _
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from django.conf import settings
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from accounting.models import CurrencyField
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from counter.models import Counter, Product, Customer, Selling, Refilling
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from core.models import User
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class Basket(models.Model):
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"""
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Basket is built when the user connects to an eboutic page
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"""
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user = models.ForeignKey(User, related_name='baskets', verbose_name=_('user'), blank=False)
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date = models.DateTimeField(_('date'), auto_now=True)
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def add_product(self, p, q = 1):
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item = self.items.filter(product_id=p.id).first()
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if item is None:
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BasketItem(basket=self, product_id=p.id, product_name=p.name, type_id=p.product_type.id,
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quantity=q, product_unit_price=p.selling_price).save()
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else:
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item.quantity += q
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item.save()
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def del_product(self, p, q = 1):
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item = self.items.filter(product_id=p.id).first()
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if item is not None:
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item.quantity -= q
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item.save()
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if item.quantity <= 0:
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item.delete()
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def get_total(self):
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total = 0
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for i in self.items.all():
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total += i.quantity * i.product_unit_price
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return total
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def __str__(self):
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return "Basket (%d items)" % self.items.all().count()
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class Invoice(models.Model):
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"""
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Invoices are generated once the payment has been validated
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"""
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user = models.ForeignKey(User, related_name='invoices', verbose_name=_('user'), blank=False)
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date = models.DateTimeField(_('date'), auto_now=True)
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validated = models.BooleanField(_("validated"), default=False)
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def __str__(self):
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return "%s - %s - %s" % (self.user, self.get_total(), self.date)
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def get_total(self):
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total = 0
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for i in self.items.all():
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total += i.quantity * i.product_unit_price
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return total
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def validate(self, *args, **kwargs):
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if self.validated:
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raise DataError(_("Invoice already validated"))
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from counter.models import Customer
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if not Customer.objects.filter(user=self.user).exists():
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number = Customer.objects.count() + 1
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Customer(user=self.user, account_id=Customer.generate_account_id(number), amount=0).save()
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eboutic = Counter.objects.filter(type="EBOUTIC").first()
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for i in self.items.all():
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if i.type_id == settings.SITH_COUNTER_PRODUCTTYPE_REFILLING:
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new = Refilling(
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counter=eboutic,
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customer=self.user.customer,
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operator=self.user,
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amount=i.product_unit_price * i.quantity,
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payment_method="CARD",
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bank="OTHER",
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date=self.date,
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)
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new.save()
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else:
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product = Product.objects.filter(id=i.product_id).first()
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new = Selling(
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label=i.product_name,
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counter=eboutic,
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club=product.club,
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product=product,
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seller=self.user,
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customer=self.user.customer,
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unit_price=i.product_unit_price,
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quantity=i.quantity,
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payment_method="CARD",
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is_validated=True,
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date=self.date,
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)
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new.save()
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self.validated = True
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self.save()
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class AbstractBaseItem(models.Model):
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product_id = models.IntegerField(_('product id'))
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product_name = models.CharField(_('product name'), max_length=255)
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type_id = models.IntegerField(_('product type id'))
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product_unit_price = CurrencyField(_('unit price'))
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quantity = models.IntegerField(_('quantity'))
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class Meta:
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abstract = True
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def __str__(self):
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return "Item: %s (%s) x%d" % (self.product_name, self.product_unit_price, self.quantity)
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class BasketItem(AbstractBaseItem):
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basket = models.ForeignKey(Basket, related_name='items', verbose_name=_('basket'))
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class InvoiceItem(AbstractBaseItem):
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invoice = models.ForeignKey(Invoice, related_name='items', verbose_name=_('invoice'))
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