Chris@0: <?php
Chris@0: 
Chris@0: /**
Chris@0:  * @file
Chris@0:  * Update functions for the HAL module.
Chris@0:  */
Chris@0: 
Chris@0: /**
Chris@0:  * Move 'link_domain' from 'rest.settings' to 'hal.settings'.
Chris@0:  */
Chris@0: function hal_update_8301() {
Chris@0:   $config_factory = \Drupal::configFactory();
Chris@0: 
Chris@0:   // The default value for the 'link_domain' key is `~`, which is the YAML
Chris@0:   // equivalent of PHP's `NULL`. If the REST module is not installed, this is
Chris@0:   // the value we will store in 'hal.settings'.
Chris@0:   $link_domain = NULL;
Chris@0: 
Chris@0:   // But if the REST module was installed, we migrate its 'link_domain' setting,
Chris@0:   // because we are actually moving that setting from 'rest.settings' to
Chris@0:   // 'hal.settings'.
Chris@0:   $rest_settings = $config_factory->getEditable('rest.settings');
Chris@0:   if ($rest_settings->getRawData() !== []) {
Chris@0:     $link_domain = $rest_settings->get('link_domain');
Chris@0:     // Remove the 'link_domain' setting from 'rest.settings'.
Chris@0:     $rest_settings->clear('link_domain')
Chris@0:       ->save();
Chris@0:   }
Chris@0: 
Chris@0:   $hal_settings = $config_factory->getEditable('hal.settings');
Chris@0:   $hal_settings->set('link_domain', $link_domain);
Chris@0:   $hal_settings->save(TRUE);
Chris@0: }