function iframe_update_8101 in Iframe 8

Same name and namespace in other branches

1. 8.2 iframe.install \iframe_update_8101()

Add an allowfullscreen column to iframe fields that do not have it yet.

File

./iframe.install, line 35

Contains install, uninstall and update functions for IFrame.

Code

function iframe_update_8101(&$sandbox) {

  // Caches have to be cleared first to ensure new fields are detected in the
  // code.
  drupal_flush_all_caches();

  /** @var \Drupal\Core\Entity\EntityFieldManagerInterface $entityFieldManager */
  $entityFieldManager = \Drupal::service('entity_field.manager');
  $entityDefinitionUpdateManager = \Drupal::entityDefinitionUpdateManager();
  $entityTypeManager = \Drupal::entityTypeManager();
  $iframeFieldMap = $entityFieldManager
    ->getFieldMapByFieldType('iframe');
  $schema = \Drupal::database()
    ->schema();

  // Loop through the array of iframe fields keyed by entity type...
  foreach ($iframeFieldMap as $entityTypeId => $fields) {
    foreach (array_keys($fields) as $fieldName) {
      $fieldStorageDefinition = $entityDefinitionUpdateManager
        ->getFieldStorageDefinition($fieldName, $entityTypeId);

      // ... if the field is in a ContentEntity stored in SQL...
      $storage = $entityTypeManager
        ->getStorage($entityTypeId);
      if ($storage instanceof SqlContentEntityStorage) {

        // ... get a map of field columns to SQL columns for that field.
        $tableMapping = $storage
          ->getTableMapping([
          $fieldName => $fieldStorageDefinition,
        ]);
        $tableNames = $tableMapping
          ->getDedicatedTableNames();
        $columns = $tableMapping
          ->getColumnNames($fieldName);

        // For each table (e.g.: data, revision), check whether the
        // 'allowfullscreen' column exists. If it does not, create it.
        foreach ($tableNames as $tableName) {
          $field_schema = $fieldStorageDefinition
            ->getSchema();
          $fieldExists = $schema
            ->fieldExists($tableName, $columns['allowfullscreen']);
          $tableExists = $schema
            ->tableExists($tableName);
          if ($fieldExists === FALSE && $tableExists) {
            $schema
              ->addField($tableName, $columns['allowfullscreen'], $field_schema['columns']['allowfullscreen']);
          }
        }
      }

      // Make sure the field storage definition is updated.
      $entityDefinitionUpdateManager
        ->updateFieldStorageDefinition($fieldStorageDefinition);
    }
  }
}