function system_config_update

Implements hook_config_update().

File

core/modules/system/system.module, line 3399

Configuration system that lets administrators modify the workings of the site.

Code

function system_config_update(Config $staging_config, Config $active_config) {
  $config_name = $staging_config->getName();

  // Enable modules and themes on config update. Note that the disabling and
  // uninstalling of extensions is not supported through config. They must be
  // disabled through the UI.
  if ($config_name === 'system.extensions') {
    foreach (array('modules', 'themes') as $extension_type) {
      $staging_list = array_filter($staging_config->get($extension_type));
      $current_list = array_filter($active_config->get($extension_type));
      $added_list = array_keys(array_diff_key($staging_list, $current_list));
      if ($extension_type === 'modules') {
        module_enable($added_list);
      }
      else {
        theme_enable($added_list);
      }
    }
  }
}