添加项目文件。

Atomx.Admin/Atomx.Admin.Client/Validators/CategoryModelValidator.cs

@@ -0,0 +1,32 @@
+using Atomx.Admin.Client.Models;
+using Atomx.Common.Enums;
+using FluentValidation;
+
+namespace Atomx.Admin.Client.Validators
+{
+    public class CategoryModelValidator : AbstractValidator<CategoryModel>
+    {
+        public CategoryModelValidator()
+        {
+            RuleFor(p => p.Name).NotEmpty().WithMessage("名称不能为空");
+            RuleFor(p => p.ParentId).Must((p,id)=> ValidateParent(id,p)).WithMessage("不能选择自己做上级分类");
+        }
+
+        private bool ValidateParent(long parentId, CategoryModel model)
+        {
+            if (model.Id == parentId && model.Id > 0)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public Func<object, string, Task<IEnumerable<string>>> ValidateValue => async (model, propertyName) =>
+        {
+            var result = await ValidateAsync(ValidationContext<CategoryModel>.CreateWithOptions((CategoryModel)model, x => { x.IncludeProperties(propertyName); }));
+            if (result.IsValid)
+                return Array.Empty<string>();
+            return result.Errors.Select(e => e.ErrorMessage);
+        };
+    }
+}