private void Remove()
{
if (_comparer == null)
{
throw new ArgumentNullException();
}
var toRemove = (_updates == null)
? _existing
: _existing.Where(e => !_updates.Any(u => _comparer(e, u))).ToList();
var enumerable = toRemove as T[] ?? toRemove.ToArray();
foreach (var t in enumerable)
{
if (_context.GetEntityState(t) == EntityState.Detached)
{
_context.Set <T>().Attach(t);
}
}
_context.Set <T>().RemoveRange(enumerable);
}
/// <summary>
/// Deletes Docs if relevant to type.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="id"></param>
/// <param name="docId"></param>
protected void DeleteDocument <T>(int id, int docId) where T : Entity, IHasDocuments <Document>
{
var document = Context.Documents.Find(docId);
ThrowIfNull(document);
// ReSharper disable once PossibleNullReferenceException
string fp = DocHelper.PrependDocsPath(document.FilePath);
if (Context.GetEntityState(document) == EntityState.Detached)
{
Context.Documents.Attach(document);
}
var entity = Context.Set <T>()
.Include(t => t.Documents)
.SingleOrDefault(t => t.Id == id);
entity?.Documents.Remove(document);
Context.Documents.Remove(document);
Context.SaveChanges();
File.Delete(fp);
}