function _contextual_links_to_id

_contextual_links_to_id($contextual_links)

Serializes #contextual_links property value array to a string.

Examples:

• node:node=1:langcode=en
• views_ui_edit:view=frontpage:location=page&view_name=frontpage&view_display_id=page_1&langcode=en
• menu:menu=tools:langcode=en|block:block=bartik.tools:langcode=en

So, expressed in a pattern: <group>:<route parameters>:<metadata>

The route parameters and options are encoded as query strings.

Parameters

array $contextual_links: The $element['#contextual_links'] value for some render element.

Return value

string A serialized representation of a #contextual_links property value array for use in a data- attribute.

File

core/modules/contextual/contextual.module, line 175

Adds contextual links to perform actions related to elements on a page.

Code

function _contextual_links_to_id($contextual_links) {
  $ids = array();
  $langcode = \Drupal::languageManager()->getCurrentLanguage(LanguageInterface::TYPE_URL)->getId();
  foreach ($contextual_links as $group => $args) {
    $route_parameters = UrlHelper::buildQuery($args['route_parameters']);
    $args += ['metadata' => []];
    // Add the current URL language to metadata so a different ID will be
    // computed when URLs vary by language. This allows to store different
    // language-aware contextual links on the client side.
    $args['metadata'] += ['langcode' => $langcode];
    $metadata = UrlHelper::buildQuery($args['metadata']);
    $ids[] = "{$group}:{$route_parameters}:{$metadata}";
  }
  return implode('|', $ids);
}