52 lines
1.6 KiB
C#
52 lines
1.6 KiB
C#
using MediatR;
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using TakeoutSaaS.Application.Identity.Commands;
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using TakeoutSaaS.Application.Identity.Contracts;
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using TakeoutSaaS.Domain.Identity.Repositories;
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using TakeoutSaaS.Shared.Abstractions.Tenancy;
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namespace TakeoutSaaS.Application.Identity.Handlers;
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/// <summary>
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/// 更新角色处理器。
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/// </summary>
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public sealed class UpdateRoleCommandHandler(
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IRoleRepository roleRepository,
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ITenantProvider tenantProvider)
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: IRequestHandler<UpdateRoleCommand, RoleDto?>
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{
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/// <summary>
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/// 执行角色更新。
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/// </summary>
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/// <param name="request">更新命令。</param>
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/// <param name="cancellationToken">取消标记。</param>
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/// <returns>更新后的角色 DTO 或 null。</returns>
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public async Task<RoleDto?> Handle(UpdateRoleCommand request, CancellationToken cancellationToken)
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{
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// 1. 获取租户上下文并查询角色
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var tenantId = request.TenantId ?? tenantProvider.GetCurrentTenantId();
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var role = await roleRepository.FindByIdAsync(request.RoleId, tenantId, cancellationToken);
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if (role == null)
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{
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return null;
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}
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// 2. 更新字段
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role.Name = request.Name;
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role.Description = request.Description;
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// 3. 持久化
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await roleRepository.UpdateAsync(role, cancellationToken);
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await roleRepository.SaveChangesAsync(cancellationToken);
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// 4. 返回 DTO
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return new RoleDto
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{
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Id = role.Id,
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TenantId = role.TenantId,
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Name = role.Name,
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Code = role.Code,
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Description = role.Description
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};
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}
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}
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