TekH
3b24755c35
- Introduced `CountHistoryQuery` record for querying the count of history entries of an envelope. - Implemented `CountHistoryQueryHandler` using repository pattern and AutoMapper. - Supports optional filtering by `Status`. - Throws `NotFoundException` if necessary (placeholder for future extension).
54 lines
1.6 KiB
C#
54 lines
1.6 KiB
C#
using AutoMapper;
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using DigitalData.Core.Abstraction.Application.Repository;
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using DigitalData.Core.Exceptions;
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using EnvelopeGenerator.Application.Common.Dto.History;
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using EnvelopeGenerator.Domain.Constants;
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using MediatR;
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using System.ComponentModel.DataAnnotations;
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using EnvelopeGenerator.Domain.Entities;
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using Microsoft.EntityFrameworkCore;
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namespace EnvelopeGenerator.Application.Histories.Queries;
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//TODO: Add sender query
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/// <summary>
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/// Repräsentiert eine Abfrage für die Verlaufshistorie eines Umschlags.
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/// </summary>
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public record CountHistoryQuery : HistoryQueryBase, IRequest<int>;
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/// <summary>
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///
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/// </summary>
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public class CountHistoryQueryHandler : IRequestHandler<CountHistoryQuery, int>
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{
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private readonly IRepository<History> _repo;
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private readonly IMapper _mapper;
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/// <summary>
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///
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/// </summary>
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/// <param name="repo"></param>
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/// <param name="mapper"></param>
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public CountHistoryQueryHandler(IRepository<History> repo, IMapper mapper)
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{
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_repo = repo;
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_mapper = mapper;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="request"></param>
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/// <param name="cancel"></param>
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/// <returns></returns>
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/// <exception cref="NotFoundException"></exception>
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public Task<int> Handle(CountHistoryQuery request, CancellationToken cancel = default)
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{
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var query = _repo.Where(h => h.EnvelopeId == request.EnvelopeId);
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if (request.Status is not null)
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query = query.Where(h => h.Status == request.Status);
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return query.CountAsync(cancel);
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}
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} |