using FlexJobApi.Core;
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using Furion.DatabaseAccessor;
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using MediatR;
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using Microsoft.EntityFrameworkCore;
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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.Threading.Tasks;
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namespace FlexJobApi.User.Application
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{
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/// <summary>
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/// 设置角色用户
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/// </summary>
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public class SetRoleUserInfosCommandHandler(
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IRepository<UserInfoRole> rep
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) : IRequestHandler<SetRoleUserInfosCommand, int>
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{
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private readonly IRepository<UserInfoRole> rep = rep;
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/// <inheritdoc/>
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public async Task<int> Handle(SetRoleUserInfosCommand request, CancellationToken cancellationToken)
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{
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var entities = await rep.AsQueryable()
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.Where(it =>
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it.RoleId == request.RoleId
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&& request.UserInfoIds.Contains(it.UserInfoId))
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.ToListAsync(cancellationToken);
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var removes = entities.Where(it => !request.UserInfoIds.Contains(it.UserInfoId)).ToList();
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if (removes.Any()) await rep.DeleteAsync(removes, cancellationToken);
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var adds = request.UserInfoIds
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.Where(it => !entities.Any(e => e.UserInfoId == it))
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.Select(it => new UserInfoRole
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{
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RoleId = request.RoleId,
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UserInfoId = it
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})
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.ToList();
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if (adds.Any()) await rep.InsertAsync(adds, cancellationToken);
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return removes.Count + adds.Count;
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}
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}
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}
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