103 lines
3.2 KiB
C#
103 lines
3.2 KiB
C#
namespace Yes.Application.Admins.Articles
|
|
{
|
|
public record UpdateArticleCommand(
|
|
int Id,
|
|
int CategoryId,
|
|
string Title,
|
|
string? Slug,
|
|
string Content,
|
|
string? CoverUrl,
|
|
string? Summary,
|
|
List<string>? Tags
|
|
) : IRequest<UpdateArticleCommandResponse>;
|
|
|
|
public record UpdateArticleCommandResponse(int Id);
|
|
|
|
public class UpdateArticleCommandHandler(
|
|
IArticleService articleService,
|
|
BlogDbContext db,
|
|
IIdentityContext identity,
|
|
IMediator mediator) : IRequestHandler<UpdateArticleCommand, UpdateArticleCommandResponse>
|
|
{
|
|
private readonly IArticleService _articleService = articleService;
|
|
private readonly BlogDbContext _db = db;
|
|
private readonly IIdentityContext _identity = identity;
|
|
private readonly IMediator _mediator = mediator;
|
|
public async Task<UpdateArticleCommandResponse> Handle(UpdateArticleCommand request, CancellationToken cancellationToken)
|
|
{
|
|
var userId = _identity.Id;
|
|
|
|
var author = await _db.Users.FindAsync(userId);
|
|
|
|
var authorObject = ValueObject<UserEntity>.Create(userId, author);
|
|
|
|
var category = await _db.Categories.FindAsync(request.CategoryId);
|
|
|
|
var categoryObject = ValueObject<CategoryEntity>.Create(request.CategoryId, category);
|
|
|
|
var article = await _db.Articles.FindAsync(request.Id);
|
|
if (article == null|| article.Status == ArticleStatusEnum.Deleted)
|
|
{
|
|
throw new ArticleNotExistsException(request.Id);
|
|
}
|
|
|
|
var identityUser = await _db.Users.FindAsync(_identity.Id);
|
|
if (identityUser == null)
|
|
{
|
|
throw new UserNotExistsException(_identity.Id);
|
|
}
|
|
|
|
if (!identityUser.IsSystemUser())
|
|
{
|
|
if (article.UserId != identityUser.Id)
|
|
{
|
|
throw new AccessDeniedException();
|
|
}
|
|
}
|
|
|
|
|
|
|
|
if (!string.IsNullOrEmpty(request.Slug) &&
|
|
article.IsSlugDifferent(request.Slug) &&
|
|
await _articleService.IsSlugInUse(request.Slug))
|
|
{
|
|
throw new SlugInUseException(request.Slug);
|
|
}
|
|
|
|
var isTagUpdated = article.Tag != request.Tags?.ToTag();
|
|
|
|
|
|
article.UpdateArticle(request.Title, request.Content, request.Summary, request.Tags, request.Slug, request.CoverUrl, authorObject, categoryObject);
|
|
|
|
if (article.IsSlugEmpty())
|
|
{
|
|
var slug = await _articleService.CreateUniqueSlug();
|
|
article.UpdateSlug(slug);
|
|
}
|
|
|
|
_db.Articles.Update(article);
|
|
|
|
foreach (var tagWord in request.Tags)
|
|
{
|
|
if (!await _db.Tags.AnyAsync(x => x.Name == tagWord))
|
|
{
|
|
var tag = TagEntity.Create(tagWord);
|
|
await _db.Tags.AddAsync(tag);
|
|
}
|
|
}
|
|
|
|
await _db.SaveChangesAsync();
|
|
|
|
await _mediator.Publish(new ArticleUpdatedEvent(article.Id));
|
|
|
|
if (isTagUpdated)
|
|
{
|
|
await mediator.Publish(new ArticleTagUpdatedEvent(article.Id));
|
|
}
|
|
|
|
|
|
return new UpdateArticleCommandResponse(request.Id);
|
|
}
|
|
}
|
|
}
|