Fix undefined variable in Mage_Catalog_Model_Resource_Abstract (#635)

Author: tmotyl

app/code/core/Mage/Catalog/Model/Resource/Abstract.php

@@ -365,7 +365,7 @@ protected function _updateAttributeForStore($object, $attribute, $value, $storeI
             $adapter->update($table, $bind, $where);
         } else {
             $bind  = array(
-                $idField            => (int)$object->getId(),
+                'entity_field_id'   => (int)$object->getId(),
                 'entity_type_id'    => (int)$object->getEntityTypeId(),
                 'attribute_id'      => (int)$attribute->getId(),
                 'value'             => $this->_prepareValueForSave($value, $attribute),