using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Web;
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using FluentValidation;
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using Pcb.ApiService.Dtos;
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namespace Pcb.Api.Infrastructures
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{
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/// <summary>
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/// 模型验证扩展类
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/// </summary>
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public static class AbstractValidatorExtensions
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{
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/// <summary>
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/// 视图模型验证
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/// </summary>
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/// <param name="viewModels">视图模型</param>
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/// <typeparam name="TValidator">验证器</typeparam>
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/// <typeparam name="T">视图模型类型</typeparam>
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/// <returns>item1: true|false , item2: errormsg</returns>
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public static Tuple<bool, ResponseInfoDto> ViewModelValidate<TValidator, T>(this IReadOnlyList<T> viewModels) where TValidator : new()
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{
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bool isValid = true;
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var errors = new StringBuilder();
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for (var i = 0; i < viewModels.Count; i++)
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{
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var m = viewModels[i];
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var validator = new TValidator() as AbstractValidator<T>;
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var validRes = validator.Validate(m);
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if (!validRes.IsValid)
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{
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isValid = false;
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errors.Append("索引[" + i + "] " + validRes.Errors.Select(x => x.PropertyName + ":" + x.ErrorMessage).Aggregate((a, b) => a + " 、" + b) + "。");
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}
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}
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return new Tuple<bool, ResponseInfoDto>(isValid, new ResponseInfoDto(0, errors.ToString()));
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}
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}
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}
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