private async Task UpdateTagIdsOfBlogPost(BlogPost newBlogPost)
{
var currentBlogPost = await _blogPostRepository.GetBlogPostById(newBlogPost.Id);
await _tagBL.CreateOrFindTags(newBlogPost.TagIds);
await _tagBL.AdjustTagCounts(currentBlogPost.TagIds, newBlogPost.TagIds);
}
