views_ajax_history-8.x-1.5/views_ajax_history.install

<?php

/**
 * Implements hook_install().
 */
function views_ajax_history_install() {
  views_ajax_history_update_views_settings_handler();
}

/**
 * Enable the ajax_history views display extender.
 */
function views_ajax_history_update_8001() {
  views_ajax_history_update_views_settings_handler();

  // Keep the previous behavior of the module by enabling the new 'ajax_history'
  // display extender on every view that uses AJAX.
  $config_factory = \Drupal::configFactory();
  foreach ($config_factory->listAll('views.view.') as $view_config_name) {
    $config = $config_factory->getEditable($view_config_name);
    if (!$config->get('display')['default']['display_options']['use_ajax'] == TRUE) {
      continue;
    }

    $save = FALSE;
    foreach ($config->get('display') as $display_id => $display) {
      if (!isset($display['display_options']['display_extenders']['ajax_history'])) {
        $display['display_options']['display_extenders']['ajax_history']['enable_history'] = TRUE;
        $config->set("display.$display_id", $display);
        $save = TRUE;
      }
    }
    if ($save) {
      $config->save(TRUE);
    }
  }
}

/**
 * Helper function for enable display extender for Views.
 */
function views_ajax_history_update_views_settings_handler() {
  // Enable ajax_history plugin.
  $config = \Drupal::service('config.factory')->getEditable('views.settings');
  $display_extenders = $config->get('display_extenders') ?: [];
  $display_extenders[] = 'ajax_history';
  $config->set('display_extenders', $display_extenders);
  $config->save();
}

/**
 * Implements hook_uninstall().
 */
function views_ajax_history_uninstall() {
  // Disable ajax_history plugin.
  $config = \Drupal::service('config.factory')->getEditable('views.settings');
  $display_extenders = $config->get('display_extenders') ?: [];
  $key = array_search('ajax_history', $display_extenders);
  if ($key !== FALSE) {
    unset($display_extenders[$key]);
    $config->set('display_extenders', $display_extenders);
    $config->save();
  }
}