public function updateAccessories($accessories, $materialId)
{
Accessorie::where('fk_mastermaterial', '=', $materialId)->orwhere('fk_slavematerial', '=', $materialId)->delete();
$insertValues = array();
foreach ($accessories as $accessorie) {
$insertValues[] = array('fk_mastermaterial' => $materialId, 'fk_slavematerial' => $accessorie);
$insertValues[] = array('fk_mastermaterial' => $accessorie, 'fk_slavematerial' => $materialId);
}
Accessorie::insert($insertValues);
}
