GetMapsQueryHandler.cs
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using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using AutoMapper;
using MassTransit;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using Rcs.Application.Common;
using Rcs.Application.Dtos;
using Rcs.Application.DTOs;
using Rcs.Application.MessageBus.Commands;
using Rcs.Domain.Entities;
using Rcs.Domain.Repositories;
namespace Rcs.Infrastructure.MessageBus.Handlers.Commands;
/// <summary>
/// 查询机器人列表命令处理器
/// </summary>
public class GetMapsQueryHandler : IConsumer<GetMapsQuery>
{
private readonly ILogger<GetMapsQueryHandler> _logger;
private readonly IMapRepository _mapRepository;
private readonly IMapper _mapper;
public GetMapsQueryHandler(
ILogger<GetMapsQueryHandler> logger,
IMapRepository mapRepository,
IMapper mapper)
{
_logger = logger;
_mapRepository = mapRepository;
_mapper = mapper;
}
public async Task Consume(ConsumeContext<GetMapsQuery> context)
{
var query = context.Message;
var queryable = _mapRepository.GetQueryable();
if (!string.IsNullOrWhiteSpace(query.FilterModel))
{
queryable = FilterHelper.ApplyFilters(queryable, query.FilterModel);
}
if (!string.IsNullOrWhiteSpace(query.MapCode))
{
queryable = queryable.Where(m => m.MapCode.Contains(query.MapCode));
}
if (!string.IsNullOrWhiteSpace(query.MapName))
{
queryable = queryable.Where(m => m.MapName.Contains(query.MapName));
}
if (query.Active.HasValue)
{
queryable = queryable.Where(m => m.Active == query.Active.Value);
}
var totalCount = await queryable.CountAsync(context.CancellationToken);
var maps = await queryable
.OrderBy(m => m.MapCode)
.Skip((query.PageNumber - 1) * query.PageSize)
.Take(query.PageSize)
.ToListAsync(context.CancellationToken);
var mapDtos = _mapper.Map<List<MapListItemDto>>(maps);
await context.RespondAsync(PagedResponse<MapListItemDto>.Successful(mapDtos, query.PageNumber, query.PageSize, totalCount));
}
}