public function DisplayPluginBase::getHandlers in Drupal 9

Same name and namespace in other branches

1. 8 core/modules/views/src/Plugin/views/display/DisplayPluginBase.php \Drupal\views\Plugin\views\display\DisplayPluginBase::getHandlers()

Get a full array of handlers for $type. This caches them.

Return value

\Drupal\views\Plugin\views\ViewsHandlerInterface[]

Overrides DisplayPluginInterface::getHandlers

9 calls to DisplayPluginBase::getHandlers()

DisplayPluginBase::calculateCacheMetadata in core/modules/views/src/Plugin/views/display/DisplayPluginBase.php

Calculates the display's cache metadata by inspecting each handler/plugin.

DisplayPluginBase::getAllHandlers in core/modules/views/src/Plugin/views/display/DisplayPluginBase.php

Gets all the handlers used by the display.

DisplayPluginBase::getFieldLabels in core/modules/views/src/Plugin/views/display/DisplayPluginBase.php

Retrieves a list of fields for the current display.

DisplayPluginBase::getHandler in core/modules/views/src/Plugin/views/display/DisplayPluginBase.php

Get the handler object for a single handler.

DisplayPluginBase::isIdentifierUnique in core/modules/views/src/Plugin/views/display/DisplayPluginBase.php

Checks if the provided identifier is unique.

... See full list

File

core/modules/views/src/Plugin/views/display/DisplayPluginBase.php, line 848

Class

DisplayPluginBase

Base class for views display plugins.

Namespace

Drupal\views\Plugin\views\display

Code

public function &getHandlers($type) {
  if (!isset($this->handlers[$type])) {
    $this->handlers[$type] = [];
    $types = ViewExecutable::getHandlerTypes();
    $plural = $types[$type]['plural'];

    // Cast to an array so that if the display does not have any handlers of
    // this type there is no PHP error.
    foreach ((array) $this
      ->getOption($plural) as $id => $info) {

      // If this is during form submission and there are temporary options
      // which can only appear if the view is in the edit cache, use those
      // options instead. This is used for AJAX multi-step stuff.
      if ($this->view
        ->getRequest()->request
        ->get('form_id') && isset($this->view->temporary_options[$type][$id])) {
        $info = $this->view->temporary_options[$type][$id];
      }
      if ($info['id'] != $id) {
        $info['id'] = $id;
      }

      // If aggregation is on, the group type might override the actual
      // handler that is in use. This piece of code checks that and,
      // if necessary, sets the override handler.
      $override = NULL;
      if ($this
        ->useGroupBy() && !empty($info['group_type'])) {
        if (empty($this->view->query)) {
          $this->view
            ->initQuery();
        }
        $aggregate = $this->view->query
          ->getAggregationInfo();
        if (!empty($aggregate[$info['group_type']]['handler'][$type])) {
          $override = $aggregate[$info['group_type']]['handler'][$type];
        }
      }
      if (!empty($types[$type]['type'])) {
        $handler_type = $types[$type]['type'];
      }
      else {
        $handler_type = $type;
      }
      if ($handler = Views::handlerManager($handler_type)
        ->getHandler($info, $override)) {

        // Special override for area types so they know where they come from.
        if ($handler instanceof AreaPluginBase) {
          $handler->areaType = $type;
        }
        $handler
          ->init($this->view, $this, $info);
        $this->handlers[$type][$id] =& $handler;
      }

      // Prevent reference problems.
      unset($handler);
    }
  }
  return $this->handlers[$type];
}