Create attribute set through installer with a custom module

Question

I want to create a new attributeset through a custom module installer. I found this code and it works :-) Only thing missing is that he should copy the new attribute set from the exsisting default attribute set. That way he would copy all the attributes already in the default set.

For example when I create attributes I use

<?php
$installer = $this;
/* @var $installer Mage_Eav_Model_Entity_Setup */

$installer->startSetup();
$installer->addAttributeSet(Mage_Catalog_Model_Product::ENTITY, 'Stoelen');
$installer->endSetup();

Answer 1

It may just be an error in English (which is a difficult language for sure), but attributes are not "copied" - they are linked via reference.

There is no native "duplicate this attribute set" functionality in Magento. To accomplish this you have two choices: via framework-supplied setup functionality or via EAV ORM. In the setup approach, you do the following:

1. Create your set (as you've done with addAttributeSet())
2. Retrieve the groups from the "source" set; loop, assign to "new" set
3. Retrieve attribute from the "source" set; loop, and assign to groups

The setup approach simply wraps the direct ORM approach. See Mage_Eav_Model_Entity_Setup for more info, including paths on how to do this.