Refactor ProductAdmin and ProductCategory model for improved clarity

- Commented out the formfield_for_foreignkey method in ProductAdmin to simplify the code and prepare for future enhancements.
- Updated the __str__ method in ProductCategory to include the associated business name, improving the representation of product categories in the admin interface.

These changes enhance code maintainability and provide better context in the admin display.

api/admin.py

@@ -156,13 +156,14 @@ class ProductAdmin(admin.ModelAdmin):
     ]
     list_filter = ['is_active']
 
-    def formfield_for_foreignkey(self, db_field, request, **kwargs):
-        if db_field.name == "category":
-            if request.GET.get('restaurant'):
-                kwargs["queryset"] = ProductCategory.objects.filter(business_id=request.GET.get('restaurant'))
-            else:
-                kwargs["queryset"] = ProductCategory.objects.none()
-        return super().formfield_for_foreignkey(db_field, request, **kwargs)
+    # def formfield_for_foreignkey(self, db_field, request, **kwargs):
+    #     if db_field.name == "category":
+    #         restaurant_id = request.GET.get('restaurant_id')
+    #         if restaurant_id:
+    #             kwargs["queryset"] = ProductCategory.objects.filter(business_id=restaurant_id)
+    #         else:
+    #             kwargs["queryset"] = ProductCategory.objects.none()
+    #     return super().formfield_for_foreignkey(db_field, request, **kwargs)
 
 
 @admin.register(RestaurantRating)

api/models.py

@@ -99,7 +99,7 @@ class Meta:
         verbose_name_plural = _("product categories")
 
     def __str__(self):
-        return self.name
+        return f"{self.name} - {self.business.name}"
 
     def get_absolute_url(self):
         return reverse("productcategory_detail", kwargs={"pk": self.pk})