30 lines
1.1 KiB
C#
30 lines
1.1 KiB
C#
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using MediatR;
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using Microsoft.EntityFrameworkCore;
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using Mirea.Api.DataAccess.Application.Common.Exceptions;
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using Mirea.Api.DataAccess.Application.Interfaces.DbContexts.Schedule;
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using System.Threading;
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using System.Threading.Tasks;
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namespace Mirea.Api.DataAccess.Application.Cqrs.Group.Commands.CreateGroup;
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public class CreateGroupCommandHandler(IGroupDbContext dbContext) : IRequestHandler<CreateGroupCommand, int>
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{
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public async Task<int> Handle(CreateGroupCommand request, CancellationToken cancellationToken)
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{
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var entity = await dbContext.Groups.FirstOrDefaultAsync(g => g.Name == request.Name, cancellationToken: cancellationToken);
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if (entity != null)
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throw new RecordExistException(typeof(Domain.Schedule.Group), nameof(Domain.Schedule.Group.Name), entity.Id);
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var group = new Domain.Schedule.Group()
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{
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Name = request.Name,
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FacultyId = request.FacultyId
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};
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var result = await dbContext.Groups.AddAsync(group, cancellationToken);
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await dbContext.SaveChangesAsync(cancellationToken);
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return result.Entity.Id;
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}
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}
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