public function delete()
{
if (!$this->hasMultishopEntries() || Shop::getContext() == Shop::CONTEXT_ALL) {
/* Select children in order to find linked combinations */
$attribute_ids = Db::getInstance()->executeS('
SELECT `id_attribute`
FROM `' . _DB_PREFIX_ . 'attribute`
WHERE `id_attribute_group` = ' . (int) $this->id);
if ($attribute_ids === false) {
return false;
}
/* Removing attributes to the found combinations */
$to_remove = array();
foreach ($attribute_ids as $attribute) {
$to_remove[] = (int) $attribute['id_attribute'];
}
if (!empty($to_remove) && Db::getInstance()->execute('
DELETE FROM `' . _DB_PREFIX_ . 'product_attribute_combination`
WHERE `id_attribute`
IN (' . implode(', ', $to_remove) . ')') === false) {
return false;
}
/* Remove combinations if they do not possess attributes anymore */
if (!AttributeGroup::cleanDeadCombinations()) {
return false;
}
/* Also delete related attributes */
if (count($to_remove)) {
if (!Db::getInstance()->execute('
DELETE FROM `' . _DB_PREFIX_ . 'attribute_lang`
WHERE `id_attribute` IN (' . implode(',', $to_remove) . ')') || !Db::getInstance()->execute('
DELETE FROM `' . _DB_PREFIX_ . 'attribute_shop`
WHERE `id_attribute` IN (' . implode(',', $to_remove) . ')') || !Db::getInstance()->execute('DELETE FROM `' . _DB_PREFIX_ . 'attribute` WHERE `id_attribute_group` = ' . (int) $this->id)) {
return false;
}
}
$this->cleanPositions();
}
$return = parent::delete();
if ($return) {
Hook::exec('actionAttributeGroupDelete', array('id_attribute_group' => $this->id));
}
return $return;
}
