fix(#I13MQS): 保存菜单时检查菜单类型

#Comment
comment #I13MQS
增加客户端检查 menuChild rule

#Issue
link https://gitee.com/LongbowEnterprise/dashboard/issues?id=I13MQS

src/admin/Bootstrap.Admin/Controllers/Api/CategoryController.cs

@@ -44,5 +44,15 @@ namespace Bootstrap.Admin.Controllers.Api
         {
             return MenuHelper.RetrieveMenus(User.Identity.Name).Where(m => m.Menus.Count() > 0).OrderBy(m => m.Name).Select(m => m.Name);
         }
+
+        /// <summary>
+        /// 通过指定菜单检查子菜单是否有子菜单
+        /// </summary>
+        /// <returns></returns>
+        [HttpGet("{id}")]
+        public bool ValidateMenuBySubMenu(string id)
+        {
+            return !MenuHelper.RetrieveAllMenus(User.Identity.Name).Where(m => m.ParentId == id).Any();
+        }
     }
 }

src/admin/Bootstrap.Admin/Views/Admin/Menus.cshtml

@@ -148,7 +148,7 @@
                 </div>
                 <div class="form-group col-sm-6">
                     <label class="control-label" for="isRes">菜单类型</label>
-                    <select data-toggle="lgbSelect" class="d-none" data-default-val="0" id="isRes">
+                    <select data-toggle="lgbSelect" class="d-none menuChild" data-default-val="0" id="isRes" data-valid="true">
                         <option value="0">菜单</option>
                         <option value="1">资源</option>
                         <option value="2">按钮</option>

src/admin/Bootstrap.Admin/wwwroot/js/menus.js

@@ -340,4 +340,22 @@ $(function () {
         var val = defaultVal === $app.val() ? '0' : '1';
         $category.lgbSelect('val', val);
     })
+
+    if ($.isFunction($.validator)) {
+        $.validator.addMethod("menuChild", function (value, element) {
+            var id = $("#menuID").val();
+            var check = id === "" || value === "菜单";
+            if (!check) {
+                $.get({
+                    url: $.formatUrl('api/Category/ValidateMenuBySubMenu/' + id),
+                    async: false,
+                    cache: false,
+                    success: function (result) {
+                        check = result
+                    }
+                });
+            }
+            return check;
+        }, "拥有子菜单时菜单类型不可更改为资源或者按钮");
+    }
 });

src/admin/Bootstrap.Admin/wwwroot/lib/longbow-select/longbow-select.js

@@ -114,7 +114,7 @@
 
         // save attributes
         var attrs = [];
-        ["id", "name", "data-default-val"].forEach(function (v, index) {
+        ["id", "name", "class", "data-valid", "data-default-val"].forEach(function (v, index) {
             var value = that.$element.attr(v);
             if (value !== undefined) attrs.push({ name: v, value: value });
         });