81 lines
1.9 KiB
Python
81 lines
1.9 KiB
Python
from django.db import models
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from django.utils.dates import MONTHS_3
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from django.utils.translation import ugettext_lazy as _
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from polymorphic.models import PolymorphicModel
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class Order(models.Model):
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"""
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An example order that has polymorphic relations
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"""
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title = models.CharField(_("Title"), max_length=200)
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class Meta:
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verbose_name = _("Organisation")
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verbose_name_plural = _("Organisations")
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ordering = ("title",)
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def __str__(self):
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return self.title
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class Payment(PolymorphicModel):
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"""
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A generic payment model.
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"""
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order = models.ForeignKey(Order, on_delete=models.CASCADE)
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currency = models.CharField(default="USD", max_length=3)
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amount = models.DecimalField(max_digits=10, decimal_places=2)
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class Meta:
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verbose_name = _("Payment")
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verbose_name_plural = _("Payments")
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def __str__(self):
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return "{0} {1}".format(self.currency, self.amount)
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class CreditCardPayment(Payment):
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"""
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Credit card
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"""
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MONTH_CHOICES = [(i, n) for i, n in sorted(MONTHS_3.items())]
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card_type = models.CharField(max_length=10)
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expiry_month = models.PositiveSmallIntegerField(choices=MONTH_CHOICES)
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expiry_year = models.PositiveIntegerField()
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class Meta:
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verbose_name = _("Credit Card Payment")
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verbose_name_plural = _("Credit Card Payments")
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class BankPayment(Payment):
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"""
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Payment by bank
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"""
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bank_name = models.CharField(max_length=100)
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swift = models.CharField(max_length=20)
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class Meta:
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verbose_name = _("Bank Payment")
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verbose_name_plural = _("Bank Payments")
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class SepaPayment(Payment):
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"""
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Payment by SEPA (EU)
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"""
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iban = models.CharField(max_length=34)
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bic = models.CharField(max_length=11)
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class Meta:
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verbose_name = _("SEPA Payment")
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verbose_name_plural = _("SEPA Payments")
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