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* File with the class to handle data from WP Meta SEO.
* @package WPSEO\Admin\Import\Plugins
* Class with functionality to import & clean WP Meta SEO post metadata.
class WPSEO_Import_WP_Meta_SEO extends WPSEO_Plugin_Importer {
protected $plugin_name = 'WP Meta SEO';
* Meta key, used in SQL LIKE clause for delete query.
protected $meta_key = '_metaseo_%';
* Array of meta keys to detect and import.
protected $clone_keys = [
'old_key' => '_metaseo_metadesc',
'old_key' => '_metaseo_metatitle',
'old_key' => '_metaseo_metaopengraph-title',
'new_key' => 'opengraph-title',
'old_key' => '_metaseo_metaopengraph-desc',
'new_key' => 'opengraph-description',
'old_key' => '_metaseo_metaopengraph-image',
'new_key' => 'opengraph-image',
'old_key' => '_metaseo_metatwitter-title',
'new_key' => 'twitter-title',
'old_key' => '_metaseo_metatwitter-desc',
'new_key' => 'twitter-description',
'old_key' => '_metaseo_metatwitter-image',
'new_key' => 'twitter-image',
'old_key' => '_metaseo_metaindex',
'new_key' => 'meta-robots-noindex',
'old_key' => '_metaseo_metafollow',
'new_key' => 'meta-robots-nofollow',