56 lines
2.1 KiB
C#
56 lines
2.1 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.Entities;
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using TakeoutSaaS.Domain.Identity.Repositories;
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using TakeoutSaaS.Shared.Abstractions.Constants;
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using TakeoutSaaS.Shared.Abstractions.Exceptions;
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namespace TakeoutSaaS.Application.Identity.Handlers;
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/// <summary>
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/// 创建角色模板处理器。
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/// </summary>
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public sealed class CreateRoleTemplateCommandHandler(IRoleTemplateRepository roleTemplateRepository)
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: IRequestHandler<CreateRoleTemplateCommand, RoleTemplateDto>
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{
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/// <inheritdoc />
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public async Task<RoleTemplateDto> Handle(CreateRoleTemplateCommand request, CancellationToken cancellationToken)
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{
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// 1. 校验必填
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if (string.IsNullOrWhiteSpace(request.TemplateCode) || string.IsNullOrWhiteSpace(request.Name))
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{
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throw new BusinessException(ErrorCodes.BadRequest, "模板编码与名称不能为空");
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}
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// 2. 检查编码唯一
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var existing = await roleTemplateRepository.FindByCodeAsync(request.TemplateCode, cancellationToken);
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if (existing != null)
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{
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throw new BusinessException(ErrorCodes.Conflict, $"模板编码 {request.TemplateCode} 已存在");
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}
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// 3. 构建模板实体
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var template = new RoleTemplate
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{
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TemplateCode = request.TemplateCode.Trim(),
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Name = request.Name.Trim(),
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Description = request.Description,
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IsActive = request.IsActive
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};
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// 4. 清洗权限编码
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var permissions = request.PermissionCodes
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.Where(code => !string.IsNullOrWhiteSpace(code))
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.Select(code => code.Trim())
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.Distinct(StringComparer.OrdinalIgnoreCase)
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.ToArray();
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// 5. 持久化并返回 DTO
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await roleTemplateRepository.AddAsync(template, permissions, cancellationToken);
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await roleTemplateRepository.SaveChangesAsync(cancellationToken);
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return TemplateMapper.ToDto(template, permissions);
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}
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}
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