禁止删除供应商

app/Admin/Controllers/SupplierController.php

@@ -26,6 +26,7 @@ class SupplierController extends AdminController
     {
         return Grid::make(new Supplier(), function (Grid $grid) {
 			$grid->disableDeleteButton();
+			$grid->disableRowSelector();
 
 			//如果是审核页面，多加where条件判断
 			if (strpos(Route::current()->uri, 'audit')) {
@@ -180,6 +181,16 @@ class SupplierController extends AdminController
 				DB::table(config('admin-supplier.database.role_users_table'))
 					->insertOrIgnore(['role_id' => 2, 'user_id' => $form->getKey()]);
 			}
+		})->deleting(function (Form $form) {
+			//禁止批量删除
+			if (strpos($form->getKey(), ',')) {
+				return $form->response()->error('操作禁止');
+			}
+
+			//禁止删除已发布有产品的供应商
+			if (Product::where('supplier_id', $form->getKey())->exists()) {
+				return $form->response()->error('该供应商已发布有产品，禁止删除');
+			}
 		});
     }
 }