128 lines
4.6 KiB
C#
128 lines
4.6 KiB
C#
using AutoMapper;
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using DMS.Core.Interfaces;
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using DMS.Core.Models;
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using DMS.Application.DTOs;
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using DMS.Application.Interfaces.Database;
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using DMS.Application.Interfaces;
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namespace DMS.Application.Services.Database;
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/// <summary>
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/// 菜单应用服务，负责处理菜单相关的业务逻辑。
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/// 实现 <see cref="IMenuAppService"/> 接口。
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/// </summary>
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public class MenuAppService : IMenuAppService
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{
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private readonly IRepositoryManager _repoManager;
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private readonly IMapper _mapper;
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/// <summary>
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/// 构造函数，通过依赖注入获取仓储管理器和AutoMapper实例。
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/// </summary>
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/// <param name="repoManager">仓储管理器实例。</param>
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/// <param name="mapper">AutoMapper 实例。</param>
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public MenuAppService(IRepositoryManager repoManager, IMapper mapper)
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{
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_repoManager = repoManager;
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_mapper = mapper;
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}
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/// <summary>
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/// 异步根据ID获取菜单数据传输对象。
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/// </summary>
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/// <param name="id">菜单ID。</param>
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/// <returns>菜单数据传输对象。</returns>
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public async Task<MenuBeanDto> GetMenuByIdAsync(int id)
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{
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var menu = await _repoManager.Menus.GetByIdAsync(id);
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return _mapper.Map<MenuBeanDto>(menu);
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}
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/// <summary>
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/// 异步获取所有菜单数据传输对象列表。
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/// </summary>
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/// <returns>菜单数据传输对象列表。</returns>
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public async Task<List<MenuBeanDto>> GetAllMenusAsync()
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{
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var menus = await _repoManager.Menus.GetAllAsync();
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return _mapper.Map<List<MenuBeanDto>>(menus);
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}
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/// <summary>
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/// 异步创建一个新菜单（事务性操作）。
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/// </summary>
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/// <param name="menuDto">要创建的菜单数据传输对象。</param>
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/// <returns>新创建菜单的ID。</returns>
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/// <exception cref="ApplicationException">如果创建菜单时发生错误。</exception>
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public async Task<int> CreateMenuAsync(MenuBeanDto menuDto)
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{
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try
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{
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await _repoManager.BeginTranAsync();
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var menu = _mapper.Map<MenuBean>(menuDto);
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await _repoManager.Menus.AddAsync(menu);
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await _repoManager.CommitAsync();
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return menu.Id;
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}
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catch (Exception ex)
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{
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await _repoManager.RollbackAsync();
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throw new ApplicationException("创建菜单时发生错误，操作已回滚。", ex);
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}
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}
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/// <summary>
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/// 异步更新一个已存在的菜单（事务性操作）。
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/// </summary>
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/// <param name="menuDto">要更新的菜单数据传输对象。</param>
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/// <returns>受影响的行数。</returns>
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/// <exception cref="ApplicationException">如果找不到菜单或更新菜单时发生错误。</exception>
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public async Task<int> UpdateMenuAsync(MenuBeanDto menuDto)
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{
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try
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{
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await _repoManager.BeginTranAsync();
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var menu = await _repoManager.Menus.GetByIdAsync(menuDto.Id);
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if (menu == null)
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{
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throw new ApplicationException($"Menu with ID {menuDto.Id} not found.");
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}
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_mapper.Map(menuDto, menu);
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int res = await _repoManager.Menus.UpdateAsync(menu);
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await _repoManager.CommitAsync();
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return res;
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}
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catch (Exception ex)
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{
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await _repoManager.RollbackAsync();
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throw new ApplicationException("更新菜单时发生错误，操作已回滚。", ex);
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}
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}
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/// <summary>
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/// 异步删除一个菜单（事务性操作）。
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/// </summary>
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/// <param name="id">要删除菜单的ID。</param>
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/// <returns>如果删除成功则为 true，否则为 false。</returns>
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/// <exception cref="InvalidOperationException">如果删除菜单失败。</exception>
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/// <exception cref="ApplicationException">如果删除菜单时发生其他错误。</exception>
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public async Task<bool> DeleteMenuAsync(int id)
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{
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try
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{
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await _repoManager.BeginTranAsync();
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var delRes = await _repoManager.Menus.DeleteByIdAsync(id);
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if (delRes == 0)
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{
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throw new InvalidOperationException($"删除菜单失败：菜单ID:{id}，请检查菜单Id是否存在");
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}
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await _repoManager.CommitAsync();
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return true;
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}
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catch (Exception ex)
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{
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await _repoManager.RollbackAsync();
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throw new ApplicationException("删除菜单时发生错误，操作已回滚。", ex);
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}
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}
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} |