update permission of ProductVariantInlineAdminPermission and AttributeValueInLine

backend/product/admin.py

@@ -91,7 +91,7 @@ class AttributeValueInLine(StackedInline):
     # search_fields = ['']
     def has_view_permission(self, request, obj = ...):
         return True 
-    def has_add_permission(self, request):
+    def has_add_permission(self, request, obj):
         return True
     def has_change_permission(self, request, obj = ...):
         return False

backend/product/permissions.py

@@ -105,8 +105,8 @@ class ProductVariantAdminPermission:
 
 class ProductVariantInlineAdminPermission:
     
-    # def has_add_permission(self, request, obj):
-    #     return True
+    def has_add_permission(self, request, obj):
+        return True
 
     def has_change_permission(self, request, obj=None):
         if request.user.is_superuser or obj == None: