Magento manage attributes from model

You can create and remove Magento product attributes from model. It’s quite simple if you know how.

Ok. Lets create attribute:

$entityTypeId = 'catalog_product';
$code = 'my_attribute';
 
$attr = array(
  'entity_type_id' => $entity_type_id,
  'backend_type' => 'int',
  'is_user_defined' => 1,
  'frontend_input' => 'text',
  'is_visible' => 0,
);
	 
$setup = new Mage_Eav_Model_Entity_Setup('core_setup');
$r = $setup->addAttribute($entityTypeId, $code, $attr);

And now we can remove attribute from model:

$entityTypeId = 'catalog_product';
$code = 'my_attribute';

$setup = new Mage_Eav_Model_Entity_Setup('core_setup');
	
$info = $setup->getEntityType($entityTypeId);
	
$setup->removeAttribute($info['entity_type_id'], $code);