Starting Module 6: Customizing Model Behaviour

carved_rock/store/models.py

@@ -9,21 +9,24 @@ class Product(models.Model):
     description = models.TextField(default="", blank=True)
     sku = models.CharField(verbose_name="Stock Keeping Unit", max_length=20, unique=True)
 
+    class Meta:
+        ordering = ['price']
+
     def __str__(self):
         return self.name
 
 
 class ProductImage(models.Model):
     image = models.ImageField()
-    product = models.ForeignKey('Product', on_delete=models.CASCADE)
+    product = models.ForeignKey('Product', on_delete=models.CASCADE, related_name="images")
 
     def __str__(self):
         return str(self.image)
 
 
 class Category(models.Model):
     name = models.CharField(max_length=100)
-    products = models.ManyToManyField('Product')
+    products = models.ManyToManyField('Product', related_name="categories")
 
     def __str__(self):
         return self.name

carved_rock/store/views.py

@@ -4,7 +4,7 @@
 
 
 def category_view(request, name):
-    products = Product.objects.filter(category__name=name)
+    products = Product.objects.filter(categories__name=name)
 
     return render(request, "store/category.html",
                   {'products': products,