//create
public int PreserveAttachment(PreserveAttachmentModel model)
{
if (!_authorization.Create(new AttachmentKeyModel {
EntityName = model.EntityName, FieldName = model.FieldName, EntityId = model.EntityId
}))
{
throw new UnauthorizedAccessException();
}
return(_business.PreserveAttachment(model));
}
public int PreserveAttachment(PreserveAttachmentModel model)
{
var attachment = _DbContext.Attachments
.SingleOrDefault(x => x.EntityName == model.EntityName &&
x.FieldName == model.FieldName &&
x.EntityId == model.EntityId);
if (attachment == null)
{
throw new NullReferenceException();
}
attachment.EntityId = model.EntityId;
_DbContext.SaveChanges();
return(attachment.Id);
}
