update product, category models add Category Manager and change admin…

… panel

apps/shop/admin.py

@@ -20,7 +20,8 @@ class ProductAdmin(admin.ModelAdmin):
 
 @admin.register(Category)
 class CategoryAdmin(admin.ModelAdmin):
-    list_display = ['name', 'slug']
+    list_display = ['name', 'slug', 'is_active']
+    fields = ['name', 'slug', 'is_active']
     prepopulated_fields = {'slug': ('name', )}
 
 

apps/shop/models.py

@@ -9,6 +9,11 @@ def get_queryset(self):
         return super(ProductManager, self).get_queryset().filter(is_active=True)
 
 
+class CategoryManager(models.Manager):
+    def get_queryset(self):
+        return super(CategoryManager, self).get_queryset().filter(is_active=True)
+
+
 class Category(TimestempedAbstractModel, SlugstempedAbstractModel):
     """
     Category Table implimented with MPTT.
@@ -22,6 +27,10 @@ class Category(TimestempedAbstractModel, SlugstempedAbstractModel):
     )
     is_active = models.BooleanField(default=True)
 
+    # Managers
+    objects = models.Manager()
+    categories = CategoryManager()
+
     class Meta:
         verbose_name = _("Category")
         verbose_name_plural = _("Categories")
@@ -46,6 +55,8 @@ class Product(TimestempedAbstractModel, SlugstempedAbstractModel):
     price = models.DecimalField(max_digits=10, decimal_places=2)
     is_stock = models.BooleanField(default=True)
     is_active = models.BooleanField(default=True)
+
+    # Managers
     objects = models.Manager()
     products = ProductManager()