islandora_mirador.install

<?php

/**
 * @file
 * Install/update hook implementations.
 */

use Drupal\taxonomy\Entity\Term;

/**
 * Implements hook_install().
 */
function islandora_mirador_install($is_syncing) {
  if (!_islandora_mirador_term_exists()) {
    $callable = $is_syncing ? [\Drupal::messenger(), 'addStatus'] : [\Drupal::messenger(), 'addWarning'];
    $callable(t('A term in the taxonomy @vid with the URI @uri does not appear to exist. The @migration_id migration can be executed to create it.', [
      '@vid' => 'islandora_display',
      '@uri' => 'https://projectmirador.org',
      '@migration_id' => 'islandora_mirador_tags',
    ]));
  }
}

/**
 * Implements hook_requirements().
 */
function islandora_mirador_requirements($phase) : array {
  $requirements = [];

  if ($phase == 'runtime') {
    $term_exists = _islandora_mirador_term_exists();
    $requirements['islandora_mirador_term_exists'] = [
      'title' => t('Mirador Term Exists'),
      'value' => $term_exists ? t('Exists') : t('Does not exist'),
      'description' => t('Whether or not a term with the URI targeted by default Mirador viewer configuration exists. If viewer configurations were made to target another URI, this can probably be ignored.'),
      'severity' => $term_exists ? REQUIREMENT_OK : REQUIREMENT_WARNING
    ];
  }

  return $requirements;
}

/**
 * Implements hook_update_last_removed.
 */
function islandora_mirador_update_last_removed() {
  return 8001;
}

/**
 * Set a default config value for mirador_library_installation_type
 * @return void
 */
function islandora_mirador_update_20001() {
$config = \Drupal::configFactory()->getEditable('islandora_mirador.settings');
  $config->set('mirador_library_installation_type', 'remote');
    $config->save();
}

/**
 * Helper; determine if a term with the target URI exists.
 *
 * @return bool
 *   TRUE if a term (at least one) with the target URI exists; otherwise, FALSE.
 *
 * @throws \Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException
 * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
 */
function _islandora_mirador_term_exists() {
  $table_exists = \Drupal::database()->schema()->tableExists('taxonomy_term__field_external_uri');
  if (!$table_exists) {
    // XXX: If the table does not exist, then avoid attempting to make a query
    // making use of the non-existent table.
    return FALSE;
  }

  $query = \Drupal::entityTypeManager()->getStorage('taxonomy_term')->getQuery()
    ->condition('vid', 'islandora_display')
    ->condition('field_external_uri.uri', 'https://projectmirador.org')
    ->accessCheck(FALSE)
    ->count();
  $count = $query->execute();
  return $count > 0;
}