/// <summary>
/// Deletes author by id
/// </summary>
/// <param name="id">id of author to delete</param>
public void DeleteAuthorById(int id)
{
// Check if author exists, if it does delete him or her from list
var author = _authorRepository.GetAuthorById(id);
if (author == null)
{
throw new ResourceNotFoundException($"Author with id {id} was not found.");
}
_authorRepository.DeleteAuthorById(id);
// delete all relations from list associated with news item
var newsItemRelations = _newsItemRelationRepository.GetAllNewsItemsForAuthor(id).ToList();
foreach (var relation in newsItemRelations)
{
_newsItemRelationRepository.DeleteRelation(relation);
}
}
/// <summary>
/// Deletes news item by id
/// </summary>
/// <param name="id">id of news item to delete</param>
public void DeleteNewsItemById(int id)
{
// Check if news item exist, if it does delete it
var newsItem = _newsItemRepository.GetNewsItemById(id);
if (newsItem == null)
{
throw new ResourceNotFoundException($"News item with id {id} was not found.");
}
_newsItemRepository.DeleteNewsItem(id);
// delete all relations from list associated with news item
var categoryRelations = _categoryRelationRepository.GetAllNewsItemsCategoryRelationsByNewsItemId(id).ToList();
var authorRelations = _authorRelationRepository.GetAuthorsForNewsItems(id).ToList();
foreach (var relation in categoryRelations)
{
_categoryRelationRepository.DeleteRelation(relation);
}
foreach (var relation in authorRelations)
{
_authorRelationRepository.DeleteRelation(relation);
}
}
