/**
* Class constructor
*/
public function __construct()
{
$this->options = WPSEO_Options::get_option('wpseo');
WPSEO_Options::maybe_set_multisite_defaults(false);
if (version_compare($this->options['version'], '1.5.0', '<')) {
$this->upgrade_15($this->options['version']);
}
if (version_compare($this->options['version'], '2.0', '<')) {
$this->upgrade_20();
}
if (version_compare($this->options['version'], '2.1', '<')) {
$this->upgrade_21();
}
if (version_compare($this->options['version'], '2.2', '<')) {
$this->upgrade_22();
}
if (version_compare($this->options['version'], '2.3', '<')) {
$this->upgrade_23();
}
if (version_compare($this->options['version'], '3.0', '<')) {
$this->upgrade_30();
}
if (version_compare($this->options['version'], '3.3', '<')) {
$this->upgrade_33();
}
if (version_compare($this->options['version'], '3.6', '<')) {
$this->upgrade_36();
}
// Since 3.7.
$features = new WPSEO_Features();
if (!$features->is_premium()) {
$upsell_notice = new WPSEO_Product_Upsell_Notice();
$upsell_notice->set_upgrade_notice();
}
/**
* Filter: 'wpseo_run_upgrade' - Runs the upgrade hook which are dependent on Yoast SEO
*
* @deprecated Since 3.1
*
* @api string - The current version of Yoast SEO
*/
do_action('wpseo_run_upgrade', $this->options['version']);
$this->finish_up();
}
/**
* Sets the upsell notice.
*/
protected function set_upsell_notice()
{
$upsell = new WPSEO_Product_Upsell_Notice();
$upsell->dismiss_notice_listener();
$upsell->initialize();
}