Files
yes.blog/Yes.Application/Admins/Pages/CreatePageCommandHandler.cs
2025-04-30 09:51:36 +08:00

50 lines
1.7 KiB
C#

namespace Yes.Application.Admins.Pages
{
public record CreatePageCommand(
string Title,
string? Slug,
string Content,
string? CoverUrl,
string? Summary,
int Sort
) : IRequest<CreatePageCommandResponse>;
public record CreatePageCommandResponse(int Id);
public class CreatePageCommandHandler(
IArticleService articleService,
BlogDbContext db,
IIdentityContext identity,
IMediator mediator) : IRequestHandler<CreatePageCommand, CreatePageCommandResponse>
{
private readonly IArticleService _articleService = articleService;
private readonly BlogDbContext _db = db;
private readonly IIdentityContext _identity = identity;
private readonly IMediator _mediator = mediator;
public async Task<CreatePageCommandResponse> Handle(CreatePageCommand request, CancellationToken cancellationToken)
{
var userId = _identity.Id;
if (!string.IsNullOrEmpty(request.Slug) && await _articleService.IsSlugInUse(request.Slug))
{
throw new SlugInUseException(request.Slug);
}
var author = await _db.Users.FindAsync(userId);
var authorObject = ValueObject<UserEntity>.Create(userId, author);
var page = ArticleEntity.CreatePage(request.Title, request.Content, request.Summary, request.Slug, request.CoverUrl, request.Sort, authorObject);
await _db.Articles.AddAsync(page);
await _db.SaveChangesAsync();
await _mediator.Publish(new PageAddedEvent(page.Id));
return new CreatePageCommandResponse(page.Id);
}
}
}