Magento Setup Script Product Image Attribute

The following is a setup script to create a product image attribute in Magento

The attribute is added to the Images group within Manage Products and behaves the same as the default product images in Magento.

<?php
$installer = $this;
$installer->startSetup();

$setup = new Mage_Eav_Model_Entity_Setup('core_setup');
$setup->addAttribute(
    'catalog_product',
    'video_thumbnail',
    array (
        'group'             => 'Images',
        'type'              => 'varchar',
        'frontend'          => 'catalog/product_attribute_frontend_image',
        'label'             => 'Video Thumbnail',
        'input'             => 'media_image',
        'class'             => '',
        'source'            => '',
        'global'            => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
        'visible'           => true,
        'required'          => false,
        'user_defined'      => false,
        'default'           => '',
        'searchable'        => false,
        'filterable'        => false,
        'comparable'        => false,
        'visible_on_front'  => true,
        'unique'            => false,
    )
);
$installer->endSetup();

<?php

$installer = $this;

$installer->startSetup();

$setup = new Mage_Eav_Model_Entity_Setup('core_setup');

$setup->addAttribute(

'catalog_product',

'video_thumbnail',

array (

'group' => 'Images',

'type' => 'varchar',

'frontend' => 'catalog/product_attribute_frontend_image',

'label' => 'Video Thumbnail',

'input' => 'media_image',

'class' => '',

'source' => '',

'global' => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,

'visible' => true,

'required' => false,

'user_defined' => false,

'default' => '',

'searchable' => false,

'filterable' => false,

'comparable' => false,

'visible_on_front' => true,

'unique' => false,

)

);

$installer->endSetup();

Make sure that you don’t forget to add a placeholder image within System Configuration -> Catalog -> Product Image Placeholders