public async Task <IEnumerable <TagEntity> > AddTags(Guid postId, IEnumerable <string> tags)
{
foreach (var tag in tags)
{
var newTag = new Tag
{
Title = tag.ToUpper(),
CreatedAt = DateTimeOffset.Now
};
var tagEntity = await AddIfNotExists(newTag, tag);
if (tagEntity != null)
{
await _postTagService.AddPostTag(postId, tagEntity.Id);
}
else
{
var tagId = _tagRepository.Where(t => t.Title == tag).FirstOrDefault().Id;
await _postTagService.AddPostTag(postId, tagId);
}
}
return(_postTagService.GetTagsForPost(postId));
}
public PostEntity GetPostAsync(Guid id)
{
if (id == Guid.Empty)
{
throw new ArgumentNullException("Post Id is null.");
}
var post = _postRepository.Where(p => p.Id == id).FirstOrDefault();
if (post == null)
{
throw new NullReferenceException("Post not found.");
}
var postEntity = _mapper.Map <PostEntity>(post);
postEntity.Date = post.CreatedAt;
postEntity.Author = _mapper.Map <UserEntity>(_userRepository
.Where(u => u.Id == post.UserId).FirstOrDefault());
postEntity.Tags = _postTagService.GetTagsForPost(id).Select(t => $"#{t.Title}") ?? null;
return(postEntity);
}
