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I followed this tutorial here: http://inchoo.net/ecommerce/magento/how-to-create-custom-attribute-source-type/

In this tutorial, there are two key settings which I want to change:

'type'              => 'int',    //backend_type
'input'             => 'select', //frontend_input

I tried using this:

'type'              => 'varchar',    //backend_type
'input'             => 'multiselect', //frontend_input

This works great from a UI standpoint, but I can't get Magento save any selection when I have the attribute setup this way.

How can I make a custom attribute source model that fully supports multiselect?

1 Answer 1

5

Add this key:

'backend'=>'eav/entity_attribute_backend_array' //backend_model 

to your attribute definition array

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  • 1
    I came to the same conclusion right before falling asleep last night. So obvious. Thanks!
    – Tyler V.
    Aug 15, 2014 at 18:35

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