public function toOptionArray()
{
if (is_null(self::$attributes)) {
$this->loadAttributes();
}
$options = parent::toOptionArray();
array_shift($options);
return $options;
}
public function loadAttributes()
{
$config = Mage::getModel('eav/config');
$attributes_codes = $config->getEntityAttributeCodes('catalog_product');
self::$attributes = array();
foreach ($attributes_codes as $attribute_code) {
$attribute = $config->getAttribute('catalog_product', $attribute_code);
if ($attribute !== false && $attribute->getAttributeId() > 0) {
self::$attributes[$attribute->getAttributeCode()] = array('is_configurable' => $attribute->getIsConfigurable() && $attribute->getFrontendInput() == 'select' && (class_exists("Mage_Catalog_Model_Resource_Eav_Attribute") && constant("Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_GLOBAL") !== null && $attribute->getIsGlobal() == Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_GLOBAL) && ($attribute->getBackendType() == 'int' ? true : false) && (strpos($attribute->getBackendModel(), 'boolean') === false && strpos($attribute->getSourceModel(), 'boolean') === false), 'value' => $attribute->getFrontend()->getLabel() . ' (' . $attribute->getAttributeCode() . ')');
}
}
}
