mirror of
https://github.com/ae-utbm/sith.git
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65 lines
2.2 KiB
Python
65 lines
2.2 KiB
Python
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from django.db import models, DataError
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from django.utils.translation import ugettext_lazy as _
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from accounting.models import CurrencyField
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from counter.models import Counter, Product
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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 validate its session basket and asks for payment
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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 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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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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payment_method = models.CharField(choices=[('CREDIT_CARD', _('Credit card')), ('SITH_ACCOUNT', _('Sith account'))],
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max_length=20, verbose_name=_('payment method'))
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validated = models.BooleanField(_("validated"), default=False)
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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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if self.payment_method == "SITH_ACCOUNT":
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self.user.customer.amount -= self.get_total()
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self.user.customer.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_name = models.CharField(_('product name'), max_length=255)
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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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