public function deleteAssociation()
{
/** @var Idea $idea1 */
$idea1 = Idea::find($this->request->get('idea1'));
/** @var Idea $idea2 */
$idea2 = Idea::find($this->request->get('idea2'));
if (!$idea1 || !$idea2) {
throw new NotFoundHttpException();
}
$relationship = IdeaRelationship::findRelationship($idea1, $idea2);
if ($relationship) {
$relationship->delete();
}
return redirect()->action('IdeaController@view', ['id' => $idea1->id]);
}
