feat: added sku and resetted migrations

shop/api/v1/serializers.py

@@ -67,6 +67,7 @@ class ProductSerializer(serializers.ModelSerializer):
         model = Product
         fields = (
             "id",
+            "sku",
             "name",
             "description",
             "stock",
@@ -86,6 +87,7 @@ class ListProductSerializer(serializers.ModelSerializer):
         model = Product
         fields = (
             "id",
+            "sku",
             "name",
             "description",
             "stock",
@@ -106,6 +108,7 @@ class CreateProductSerializer(serializers.ModelSerializer):
 
     def create(self, validated_data):
         instance = Product.objects.create(
+            sku=validated_data.get("sku"),
             name=validated_data.get("name"),
             description=validated_data.get("description"),
             stock=validated_data.get("stock"),
@@ -124,12 +127,14 @@ class CreateProductSerializer(serializers.ModelSerializer):
             tax=validated_data.get("tax"),
             current=True,
         )
+
         return instance
 
     class Meta:
         model = Product
         fields = (
             "id",
+            "sku",
             "name",
             "description",
             "stock",
@@ -147,6 +152,7 @@ class UpdateProductSerializer(serializers.ModelSerializer):
         model = Product
         fields = (
             "id",
+            "sku",
             "name",
             "description",
             "stock",