Set order of multiselect attribute options within setup script

Question

In one of the modules we are developing we require to create a multi-select attribute with several options. It's highly important that these options are given a certain order by default.

This is the current code for adding the attribute:

$installer->addAttribute('catalog_product', 'tariffplan_sms_slider', array(
 'attribute_set' => 'Randomattributeset',
 'group' => 'Sample',
 'type' => 'varchar',
 'default' => 0,
 'required' => false,
 'visible' => true,
 'backend' => 'eav/entity_attribute_backend_array',
 'frontend' => '',
 'label' => 'Random label',
 'note' => '',
 'input' => 'multiselect',
 'global' => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_WEBSITE,
 'option' => array ('value' => 
 array(
 'one' => array("Low"),
 'two' => array("Medium"),
 'three' => array('High'),
 'four' => array('Unlimited')
 )
 ),
 'visible' => true,
 'required' => false,
 'user_defined' => true,
 'default' => 0,
 'visible_on_front' => false,
 'used_in_product_listing' => false,
 'unique' => false
));

As you can see I'm giving an array of options for this attribute that will be created. On top of that I would like to set the order (see Position input fields in the backend) of each option.

I have tried the following below but it isn't working:

 'option' => array (
 'value' => array(
 'one' => array("Don't care"),
 'two' => array("Low"),
 'three' => array('High'),
 'four' => array('Unlimited')
 ),
 'order' => array(
 'one' => 0,
 'two' => 1,
 'three' => 2,
 'four' => 3
 )
 ),

Version: Magento ver. 1.7.0.1

Anyone got an idea?

• Fabian Blechschmidt: You can change this a little bit, add a source-model, then you can implement it to your own wishes :-)
• Fabian Blechschmidt: btw, what is the order? Or what is the exact problem? :)
• Kenny: Fixed it already ;) Gotta love learning from the core ;)

Answer 1

Fixed it myself by looking at the addAttributeOption() method inside Mage_Eav_Model_Entity_Setup:

Result:

$installer->addAttribute('catalog_product', 'tariffplan_sms_slider', array(
 'attribute_set' => 'Randomattributeset',
 'group' => 'Sample',
 'type' => 'varchar',
 'default' => 0,
 'required' => false,
 'visible' => true,
 'backend' => 'eav/entity_attribute_backend_array',
 'frontend' => '',
 'label' => 'Random label',
 'note' => '',
 'input' => 'multiselect',
 'global' => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_WEBSITE,
 'option' => array (
 'values' => array(
 '1' => 'Low',
 '2' => 'Medium',
 '3' => 'High',
 '4' => 'Unlimited'
 )
 ),
 'visible' => true,
 'required' => false,
 'user_defined' => true,
 'default' => 0,
 'visible_on_front' => false,
 'used_in_product_listing' => false,
 'unique' => false
));

For those that don't see it immediately you basically just needed to change the value you give to the "option" key from:

'option' => array ('value' => 
 array(
 'one' => array("Low"),
 'two' => array("Medium"),
 'three' => array('High'),
 'four' => array('Unlimited')
 )
 ),

TO (see how value changed ito into values):

'option' => array (
 'values' => array(
 '1' => 'Low',
 '2' => 'Medium',
 '3' => 'High',
 '4' => 'Unlimited'
 )
 ),