function FieldInfo::getBundleExtraFields

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];
}