sort products by category weight on shop page

src/shop/migrations/0060_productcategory_weight.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.2.3 on 2019-12-16 22:40
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('shop', '0059_auto_20190718_2051'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='productcategory',
+            name='weight',
+            field=models.IntegerField(default=100, help_text='Sorting weight. Heavier items sink to the bottom.'),
+        ),
+    ]

src/shop/models.py

@@ -376,6 +376,7 @@ class ProductCategory(CreatedUpdatedModel, UUIDModel):
     name = models.CharField(max_length=150)
     slug = models.SlugField()
     public = models.BooleanField(default=True)
+    weight = models.IntegerField(default=100, help_text="Sorting weight. Heavier items sink to the bottom.")
 
     def __str__(self):
         return self.name

src/shop/views.py

@@ -156,7 +156,7 @@ class ShopIndexView(ListView):
 
     def get_queryset(self):
         queryset = super(ShopIndexView, self).get_queryset()
-        return queryset.available().order_by("category__name", "price", "name")
+        return queryset.available().order_by("category__weight", "category__name", "price", "name")
 
     def get_context_data(self, **kwargs):
         context = super(ShopIndexView, self).get_context_data(**kwargs)