using Abp.Application.Services.Dto;

 using Abp.Domain.Repositories;

 using Abp.EntityFrameworkCore.Repositories;

 using Abp.UI;

 using EFCore.BulkExtensions;

 using Microsoft.EntityFrameworkCore;

 using System;

 using System.Collections.Generic;

 using System.Diagnostics;

 using System.Linq;

 using System.Text;

 using System.Threading.Tasks;

 using WebProject.Authorization.Accounts;

 namespace WebProject.Article

 {

     public class ArticleAppService : WebProjectAppServiceBase, IArticleAppService

     {

         private readonly IRepository<Models.Article> _articleRepository;

         public ArticleAppService(IRepository<Models.Article> articleRepository)

         {

             _articleRepository = articleRepository;

         }

         /// <summary>

         /// 批量添加

         /// </summary>

         /// <param name="input"></param>

         /// <returns></returns>

         public string BulkInsert(EntityDto input)

         {

             Stopwatch watch = new Stopwatch();

             watch.Start();

             List<Models.Article> list = new List<Models.Article>();

             for (int i = ; i < input.Id; i++)

             {

                 var entity = new Models.Article();

                 entity.CateId = ;

                 entity.Title = $"BulkInsert娱乐{1}";

                 list.Add(entity);

             }

             _articleRepository.GetDbContext().BulkInsert(list);//GetDbContext 需要添加Abp.EntityFrameworkCore.Repositories引用

             watch.Stop();

             string time = watch.ElapsedMilliseconds.ToString();

             return time;

         }

         /// <summary>

         /// 批量删除

         /// </summary>

         /// <returns></returns>

         public string BulkDelete()

         {

             Stopwatch watch = new Stopwatch();

             watch.Start();

             _articleRepository.GetAll().BatchDelete();

             //_articleRepository.GetAll().Where(m=>m.Id>100).BatchDelete();

             watch.Stop();

             string time = watch.ElapsedMilliseconds.ToString();

             return time;

         }

         /// <summary>

         /// 批量修改

         /// </summary>

         /// <returns></returns>

         public string BatchUpdate()

         {

             Stopwatch watch = new Stopwatch();

             watch.Start();

             _articleRepository.GetAll().BatchUpdate(new Models.Article { Title = "Updated娱乐" });

             //_articleRepository.GetAll().Where(m=>m.Id>100).BatchUpdate(new Models.Article { Title = "Updated娱乐" });

             watch.Stop();

             string time = watch.ElapsedMilliseconds.ToString();

             return time;

         }

     }

 }