36 lines
1.3 KiB
C#
36 lines
1.3 KiB
C#
using MediatR;
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using TakeoutSaaS.Application.App.Merchants.Dto;
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using TakeoutSaaS.Application.App.Merchants.Queries;
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using TakeoutSaaS.Domain.Merchants.Repositories;
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using TakeoutSaaS.Shared.Abstractions.Constants;
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using TakeoutSaaS.Shared.Abstractions.Exceptions;
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using TakeoutSaaS.Shared.Abstractions.Tenancy;
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namespace TakeoutSaaS.Application.App.Merchants.Handlers;
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/// <summary>
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/// 商户变更历史处理器。
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/// </summary>
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public sealed class GetMerchantChangeHistoryQueryHandler(
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IMerchantRepository merchantRepository,
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ITenantProvider tenantProvider)
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: IRequestHandler<GetMerchantChangeHistoryQuery, IReadOnlyList<MerchantChangeLogDto>>
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{
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/// <inheritdoc />
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public async Task<IReadOnlyList<MerchantChangeLogDto>> Handle(
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GetMerchantChangeHistoryQuery request,
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CancellationToken cancellationToken)
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{
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var currentTenantId = tenantProvider.GetCurrentTenantId();
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var merchant = await merchantRepository.FindByIdAsync(request.MerchantId, currentTenantId, cancellationToken);
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if (merchant == null)
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{
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throw new BusinessException(ErrorCodes.NotFound, "商户不存在");
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}
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var logs = await merchantRepository.GetChangeLogsAsync(merchant.Id, merchant.TenantId, request.FieldName, cancellationToken);
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return logs.Select(MerchantMapping.ToDto).ToList();
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}
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}
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