Admin panel - Product Tier price cannot be deleted once start date an…

…d end date is associated #433

src/Web/Grand.Web.Admin/Areas/Admin/Views/Product/Partials/CreateOrUpdate.Prices.cshtml

@@ -240,6 +240,17 @@
                             type: "POST",
                             dataType: "json",
                             data: addAntiForgeryToken
+                        },
+                        parameterMap: function (data, operation) {                            
+                            if (operation === "destroy") 
+                            {
+                                return { 
+                                    id: data.Id, 
+                                    productId: data.ProductId,
+                                    __RequestVerificationToken: data.__RequestVerificationToken
+                                };
+                            }
+                            return data;
                         }
                     },
                     schema: {

src/Web/Grand.Web.Admin/Controllers/ProductController.cs

@@ -1800,7 +1800,7 @@ public async Task<IActionResult> TierPriceEditPopup(string productId, ProductMod
 
         [PermissionAuthorizeAction(PermissionActionName.Edit)]
         [HttpPost]
-        public async Task<IActionResult> TierPriceDelete(ProductModel.TierPriceModel model)
+        public async Task<IActionResult> TierPriceDelete(ProductModel.TierPriceDeleteModel model)
         {
             if (ModelState.IsValid)
             {

src/Web/Grand.Web.Admin/Models/Catalog/ProductModel.cs

@@ -714,6 +714,8 @@ public TierPriceModel()
 
         }
 
+        public record TierPriceDeleteModel(string Id, string ProductId);
+
         public class ProductWarehouseInventoryModel : BaseModel
         {
             [GrandResourceDisplayName("Admin.Catalog.Products.ProductWarehouseInventory.Fields.Warehouse")]

src/Web/Grand.Web.Admin/Validators/Catalog/TierPriceModelValidator.cs

@@ -29,4 +29,25 @@ public TierPriceModelValidator(
             }
         }
     }
+    public class TierPriceDeleteModelValidator : BaseGrandValidator<ProductModel.TierPriceDeleteModel>
+    {
+        public TierPriceDeleteModelValidator(
+            IEnumerable<IValidatorConsumer<ProductModel.TierPriceDeleteModel>> validators,
+            ITranslationService translationService, IProductService productService, IWorkContext workContext)
+            : base(validators)
+        {
+            if (!string.IsNullOrEmpty(workContext.CurrentCustomer.StaffStoreId))
+            {
+                RuleFor(x => x).MustAsync(async (x, _, _) =>
+                {
+                    var product = await productService.GetProductById(x.ProductId);
+                    if (product != null)
+                        if (!product.AccessToEntityByStore(workContext.CurrentCustomer.StaffStoreId))
+                            return false;
+
+                    return true;
+                }).WithMessage(translationService.GetResource("Admin.Catalog.Products.Permissions"));
+            }
+        }
+    }
 }