feat(Payments): Generate cash payment with purchase.

tienda_ilusion/don_confiao/models.py

@@ -3,6 +3,7 @@ from django.utils.translation import gettext_lazy as _
 from django.core.exceptions import ValidationError
 
 from decimal import Decimal
+from datetime import datetime
 
 
 class Customer(models.Model):
@@ -118,7 +119,7 @@ class ReconciliationJar(models.Model):
             self.payment_set.add(payment)
         self.is_valid = True
 
-        
+
 class Payment(models.Model):
     date_time = models.DateTimeField()
     type_payment = models.CharField(
@@ -144,3 +145,23 @@ class Payment(models.Model):
                 reconciliation_jar=None
             )
         )
+
+    @classmethod
+    def total_payment_from_sale(cls, payment_method, sale):
+        payment = cls()
+        payment.date_time = datetime.today()
+        payment.type_payment = payment_method
+        payment.amount = sale.get_total()
+        payment.clean()
+        payment.save()
+
+        payment_sale = PaymentSale()
+        payment_sale.payment = payment
+        payment_sale.sale = sale
+        payment_sale.clean()
+        payment_sale.save()
+
+
+class PaymentSale(models.Model):
+    payment = models.ForeignKey(Payment, on_delete=models.CASCADE)
+    sale = models.ForeignKey(Sale, on_delete=models.CASCADE)