I have seen a similar question but I did not find an answer there : How can I get my custom backend Magento Customer Checkbox Attribute to save my selection?
$installer->addAttribute('catalog_product', 'tip', array(
'group' => 'ISM',
'input' => 'checkbox',
'type' => 'int',
'label' => 'TIP',
'visible' => 1,
'source' => 'eav/entity_attribute_source_boolean',
'required' => 0,
'user_defined' => 1,
'searchable' => 0,
'filterable' => 0,
'comparable' => 0,
'visible_on_front' => 0,
'visible_in_advanced_search' => 0,
'is_html_allowed_on_front' => 0,
'global' => 1,
'used_in_product_listing' => 0,
'is_html_allowed_on_front' => 1
));
I have created an attribute, but it doesn't save the value when I edit-save or create-save the product.