Delete returns true when it has failed

[jamieburchell]

When deleting a database row the delete function returns true even if it failed. There doesn't seem to be any checking of the result of the delete and returns true/commits transaction regardless.

// Delete the object itself
$this->db->where('id', $this->id);
$this->db->delete($this->table);

// Complete auto transaction
$this->_auto_trans_complete('delete');

// Clear this object
$this->clear();

return TRUE;