public function FieldInfo::getBundleExtraFields in Drupal 7

Retrieves the "extra fields" for a bundle.

Parameters

$entity_type: The entity type.

$bundle: The bundle name.

Return value

The array of extra fields.

File

modules/field/field.info.class.inc, line 451

Class

FieldInfo

Provides field and instance definitions for the current runtime environment.

Code

public function getBundleExtraFields($entity_type, $bundle) {

  // Read from the "static" cache.
  if (isset($this->bundleExtraFields[$entity_type][$bundle])) {
    return $this->bundleExtraFields[$entity_type][$bundle];
  }

  // Read from the persistent cache.
  if ($cached = cache_get("field_info:bundle_extra:{$entity_type}:{$bundle}", 'cache_field')) {
    $this->bundleExtraFields[$entity_type][$bundle] = $cached->data;
    return $this->bundleExtraFields[$entity_type][$bundle];
  }

  // Cache miss: read from hook_field_extra_fields(). Note: given the current
  // shape of the hook, we have no other way than collecting extra fields on
  // all bundles.
  $info = array();
  $extra = module_invoke_all('field_extra_fields');
  drupal_alter('field_extra_fields', $extra);

  // Merge in saved settings.
  if (isset($extra[$entity_type][$bundle])) {
    $info = $this
      ->prepareExtraFields($extra[$entity_type][$bundle], $entity_type, $bundle);
  }

  // Store in the 'static' and persistent caches.
  $this->bundleExtraFields[$entity_type][$bundle] = $info;
  if (lock_acquire("field_info:bundle_extra:{$entity_type}:{$bundle}")) {
    cache_set("field_info:bundle_extra:{$entity_type}:{$bundle}", $info, 'cache_field');
    lock_release("field_info:bundle_extra:{$entity_type}:{$bundle}");
  }
  return $this->bundleExtraFields[$entity_type][$bundle];
}