feat: added product variants

shop/admin.py

@@ -9,10 +9,13 @@ from shop.models import (
     Order,
     OrderLine,
     Product,
+    ProductAttribute,
+    ProductAttributeValue,
     ProductBatch,
     ProductCategory,
     ProductPrice,
     ProductImage,
+    ProductVariant,
     Provider,
     ShippingMethod,
     ShopSettings,
@@ -21,6 +24,13 @@ from shop.models import (
 )
 
 
+class ProductPriceInline(admin.TabularInline):
+    model = ProductPrice
+    fk_name = 'variant'
+    fields = ('price', 'tax', 'current')
+    extra = 1
+
+
 # Register your models here.
 @admin.register(Product)
 class ProductAdmin(ModelAdmin):
@@ -42,8 +52,8 @@ class TaxAdmin(ModelAdmin):
 
 @admin.register(OrderLine)
 class OrderLineAdmin(ModelAdmin):
-    autocomplete_fields = ('product',)
-    list_display = ('id', 'product', 'price', 'quantity')
+    autocomplete_fields = ('product', 'variant')
+    list_display = ('id', 'product', 'variant', 'price', 'quantity')
 
 
 @admin.register(Order)
@@ -78,7 +88,7 @@ class CartAdmin(ModelAdmin):
 
 @admin.register(CartItem)
 class CartItemAdmin(ModelAdmin):
-    list_display = ('id', 'cart', 'product', 'quantity')
+    list_display = ('id', 'cart', 'product', 'variant', 'quantity')
 
 
 @admin.register(ShippingMethod)
@@ -108,3 +118,25 @@ class ShopSettingsAdmin(ModelAdmin):
 @admin.register(ProductImage)
 class ProductImageAdmin(ModelAdmin):
     list_display = ('id', 'original')
+
+
+@admin.register(ProductAttribute)
+class ProductAttributeAdmin(ModelAdmin):
+    search_fields = ('name',)
+    list_display = ('id', 'name')
+
+
+@admin.register(ProductAttributeValue)
+class ProductAttributeValueAdmin(ModelAdmin):
+    autocomplete_fields = ('attribute',)
+    search_fields = ('value',)
+    list_display = ('id', 'attribute', 'value')
+
+
+@admin.register(ProductVariant)
+class ProductVariantAdmin(ModelAdmin):
+    autocomplete_fields = ('product',)
+    filter_horizontal = ('attribute_values',)
+    search_fields = ('sku', 'product__name')
+    list_display = ('id', 'product', 'sku', 'stock')
+    inlines = (ProductPriceInline,)