35 lines
908 B
Python
35 lines
908 B
Python
from django.db import models
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class Item(models.Model):
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VALID_CURRENCIES = (
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("CAD", "CAD"),
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("USD", "USD"),
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)
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name = models.CharField(max_length=120)
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price = models.DecimalField(max_digits=5, decimal_places=2)
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currency = models.CharField(max_length=3, choices=VALID_CURRENCIES)
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def __str__(self):
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return self.name
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class Shop(models.Model):
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name = models.CharField(max_length=120)
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def __str__(self):
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return self.name
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class Inventory(models.Model):
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class Meta:
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unique_together = ["shop", "item"]
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ordering = ["shop", "item__name"]
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verbose_name_plural = "Inventory"
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shop = models.ForeignKey(
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to=Shop, on_delete=models.CASCADE, related_name="inventory"
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)
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item = models.ForeignKey(to=Item, on_delete=models.CASCADE)
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quantity = models.PositiveIntegerField(default=0, null=True, blank=True)
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