public IEnumerable <NewsItemDto> GetAllNews()
{
var news = _newsItemRepository.GetAllNews().ToList();
news.ForEach(n => {
n.Links.AddReference("self", $"api/{n.Id}");
n.Links.AddReference("edit", $"api/{n.Id}");
n.Links.AddReference("delete", $"api/{n.Id}");
n.Links.AddListReference("authors", _authorRepository.GetAuthorsByNewsItemId(n.Id).Select(a => new { href = $"/api/authors/{a.Id}" }));
n.Links.AddListReference("categories", _categoryRepository.GetCategoriesByNewsItemId(n.Id).Select(c => new { href = $"/api/categories/{c.Id}" }));
});
return(news);
}