function _field_info_collate_types

Collates all information on field types, widget types and related structures.

Return value

An associative array containing:

• 'field types': Array of hook_field_info() results, keyed by field_type. Each element has the following components: label, description, settings, instance_settings, default_widget, default_formatter, and behaviors from hook_field_info(), as well as module, giving the module that exposes the field type.
• 'storage types': Array of hook_field_storage_info() results, keyed by storage type names. Each element has the following components: label, description, and settings from hook_field_storage_info(), as well as module, giving the module that exposes the storage type.

See also

_field_info_collate_types_reset()

Related topics

File

drupal/core/modules/field/field.info.inc, line 83

Field Info API, providing information about available fields and field types.

Code

function _field_info_collate_types() {
  $language_interface = language(LANGUAGE_TYPE_INTERFACE);

  // Use the advanced drupal_static() pattern, since this is called very often.
  static $drupal_static_fast;
  if (!isset($drupal_static_fast)) {
    $drupal_static_fast['field_info_collate_types'] =& drupal_static(__FUNCTION__);
  }
  $info =& $drupal_static_fast['field_info_collate_types'];

  // The _info() hooks invoked below include translated strings, so each
  // language is cached separately.
  $langcode = $language_interface->langcode;
  if (!isset($info)) {
    if ($cached = cache('field')
      ->get("field_info_types:{$langcode}")) {
      $info = $cached->data;
    }
    else {
      $info = array(
        'field types' => array(),
        'storage types' => array(),
      );

      // Populate field types.
      foreach (module_implements('field_info') as $module) {
        $field_types = (array) module_invoke($module, 'field_info');
        foreach ($field_types as $name => $field_info) {

          // Provide defaults.
          $field_info += array(
            'settings' => array(),
            'instance_settings' => array(),
          );
          $info['field types'][$name] = $field_info;
          $info['field types'][$name]['module'] = $module;
        }
      }
      drupal_alter('field_info', $info['field types']);

      // Populate storage types.
      foreach (module_implements('field_storage_info') as $module) {
        $storage_types = (array) module_invoke($module, 'field_storage_info');
        foreach ($storage_types as $name => $storage_info) {

          // Provide defaults.
          $storage_info += array(
            'settings' => array(),
          );
          $info['storage types'][$name] = $storage_info;
          $info['storage types'][$name]['module'] = $module;
        }
      }
      drupal_alter('field_storage_info', $info['storage types']);
      cache('field')
        ->set("field_info_types:{$langcode}", $info, CacheBackendInterface::CACHE_PERMANENT, array(
        'field_info_types' => TRUE,
      ));
    }
  }
  return $info;
}