17b7e9996e
- 从多个文件中移除未使用的 System.Linq.Dynamic.Core 引用 - 从多个文件中移除未使用的 Microsoft.EntityFrameworkCore 引用 - 从 IM 模块中移除未使用的 MongoDB.Driver.Linq 引用 - 清理 Handler 文件中的冗余命名空间引用 - 优化代码结构减少不必要的依赖引入 - 提高代码整洁性和编译效率
35 lines
1.6 KiB
C#
35 lines
1.6 KiB
C#
using BuildFlow.Shared.Domain.Exceptions;
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using MediatR;
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using BuildFlow.Application.Roles.DTOs;
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using BuildFlow.Domain.Entities;
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using BuildFlow.Infrastructure.Persistence;
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using BuildFlow.Application.Roles.Commands;
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namespace BuildFlow.Application.Roles.Handlers;
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/// <summary>
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/// Assign权限sCommand处理器。执行业务校验后持久化。
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/// </summary>
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public class AssignPermissionsCommandHandler(RagDbContext db) : IRequestHandler<AssignPermissionsCommand, RoleDto>
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{
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public async Task<RoleDto> Handle(AssignPermissionsCommand request, CancellationToken ct)
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{
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var role = await db.Roles.Include(r => r.RolePermissions).ThenInclude(rp => rp.Permission)
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.FirstOrDefaultAsync(r => r.Id == request.RoleId, ct)
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?? throw new NotFoundException("角色不存在");
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var permissions = await db.Permissions.Where(p => request.PermissionIds.Contains(p.Id)).ToListAsync(ct);
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// 计数校验：查回的数量必须与请求数量一致，否则说明传入含无效 Id，拒绝执行以免权限静默丢失
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if (permissions.Count != request.PermissionIds.Count)
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throw new NotFoundException("部分权限不存在");
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db.RolePermissions.RemoveRange(role.RolePermissions);
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await db.RolePermissions.AddRangeAsync(
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permissions.Select(p => new RolePermission { RoleId = role.Id, PermissionId = p.Id }), ct);
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await db.SaveChangesAsync(ct);
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return new RoleDto(role.Id, role.Name, role.Description, role.CreatedAt,
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permissions.Select(p => p.Code).ToList());
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}
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}
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