/**
  * {@inheritdoc}
  */
 public function buildForm(array $form, FormStateInterface $form_state)
 {
     $view = $form_state->get('view');
     $display_id = $form_state->get('display_id');
     $type = $form_state->get('type');
     $id = $form_state->get('id');
     $form = array('options' => array('#tree' => TRUE, '#theme_wrappers' => array('container'), '#attributes' => array('class' => array('scroll'), 'data-drupal-views-scroll' => TRUE)));
     $executable = $view->getExecutable();
     if (!$executable->setDisplay($display_id)) {
         views_ajax_render($this->t('Invalid display id @display', array('@display' => $display_id)));
     }
     $executable->initQuery();
     $item = $executable->getHandler($display_id, $type, $id);
     if ($item) {
         $handler = $executable->display_handler->getHandler($type, $id);
         if (empty($handler)) {
             $form['markup'] = array('#markup' => $this->t("Error: handler for @table > @field doesn't exist!", array('@table' => $item['table'], '@field' => $item['field'])));
         } else {
             $handler->init($executable, $executable->display_handler, $item);
             $types = ViewExecutable::getHandlerTypes();
             $form['#title'] = $this->t('Configure aggregation settings for @type %item', array('@type' => $types[$type]['lstitle'], '%item' => $handler->adminLabel()));
             $handler->buildGroupByForm($form['options'], $form_state);
             $form_state->set('handler', $handler);
         }
         $view->getStandardButtons($form, $form_state, 'views_ui_config_item_group_form');
     }
     return $form;
 }
 /**
  * {@inheritdoc}
  */
 public function buildForm(array $form, FormStateInterface $form_state)
 {
     $view = $form_state->get('view');
     $display_id = $form_state->get('display_id');
     $type = 'filter';
     $types = ViewExecutable::getHandlerTypes();
     $executable = $view->getExecutable();
     if (!$executable->setDisplay($display_id)) {
         views_ajax_render($this->t('Invalid display id @display', array('@display' => $display_id)));
     }
     $display = $executable->displayHandlers->get($display_id);
     $form['#title'] = String::checkPlain($display->display['display_title']) . ': ';
     $form['#title'] .= $this->t('Rearrange @type', array('@type' => $types[$type]['ltitle']));
     $form['#section'] = $display_id . 'rearrange-item';
     if ($display->defaultableSections($types[$type]['plural'])) {
         $section = $types[$type]['plural'];
         $form_state->set('section', $section);
         views_ui_standard_display_dropdown($form, $form_state, $section);
     }
     if (!empty($view->form_cache)) {
         $groups = $view->form_cache['groups'];
         $handlers = $view->form_cache['handlers'];
     } else {
         $groups = $display->getOption('filter_groups');
         $handlers = $display->getOption($types[$type]['plural']);
     }
     $count = 0;
     // Get relationship labels
     $relationships = array();
     foreach ($display->getHandlers('relationship') as $id => $handler) {
         $relationships[$id] = $handler->adminLabel();
     }
     $group_options = array();
     /**
      * Filter groups is an array that contains:
      * array(
      *   'operator' => 'and' || 'or',
      *   'groups' => array(
      *     $group_id => 'and' || 'or',
      *   ),
      * );
      */
     $grouping = count(array_keys($groups['groups'])) > 1;
     $form['filter_groups']['#tree'] = TRUE;
     $form['filter_groups']['operator'] = array('#type' => 'select', '#options' => array('AND' => $this->t('And'), 'OR' => $this->t('Or')), '#default_value' => $groups['operator'], '#attributes' => array('class' => array('warning-on-change')), '#title' => $this->t('Operator to use on all groups'), '#description' => $this->t('Either "group 0 AND group 1 AND group 2" or "group 0 OR group 1 OR group 2", etc'), '#access' => $grouping);
     $form['remove_groups']['#tree'] = TRUE;
     foreach ($groups['groups'] as $id => $group) {
         $form['filter_groups']['groups'][$id] = array('#title' => $this->t('Operator'), '#type' => 'select', '#options' => array('AND' => $this->t('And'), 'OR' => $this->t('Or')), '#default_value' => $group, '#attributes' => array('class' => array('warning-on-change')));
         $form['remove_groups'][$id] = array();
         // to prevent a notice
         if ($id != 1) {
             $form['remove_groups'][$id] = array('#type' => 'submit', '#value' => $this->t('Remove group @group', array('@group' => $id)), '#id' => "views-remove-group-{$id}", '#attributes' => array('class' => array('views-remove-group')), '#group' => $id);
         }
         $group_options[$id] = $id == 1 ? $this->t('Default group') : $this->t('Group @group', array('@group' => $id));
         $form['#group_renders'][$id] = array();
     }
     $form['#group_options'] = $group_options;
     $form['#groups'] = $groups;
     // We don't use getHandlers() because we want items without handlers to
     // appear and show up as 'broken' so that the user can see them.
     $form['filters'] = array('#tree' => TRUE);
     foreach ($handlers as $id => $field) {
         // If the group does not exist, move the filters to the default group.
         if (empty($field['group']) || empty($groups['groups'][$field['group']])) {
             $field['group'] = 1;
         }
         $handler = $display->getHandler($type, $id);
         if ($grouping && $handler && !$handler->canGroup()) {
             $field['group'] = 'ungroupable';
         }
         // If not grouping and the handler is set ungroupable, move it back to
         // the default group to prevent weird errors from having it be in its
         // own group:
         if (!$grouping && $field['group'] == 'ungroupable') {
             $field['group'] = 1;
         }
         // Place this item into the proper group for rendering.
         $form['#group_renders'][$field['group']][] = $id;
         $form['filters'][$id]['weight'] = array('#title' => t('Weight for @id', array('@id' => $id)), '#title_display' => 'invisible', '#type' => 'textfield', '#default_value' => ++$count, '#size' => 8);
         $form['filters'][$id]['group'] = array('#title' => t('Group for @id', array('@id' => $id)), '#title_display' => 'invisible', '#type' => 'select', '#options' => $group_options, '#default_value' => $field['group'], '#attributes' => array('class' => array('views-region-select', 'views-region-' . $id)), '#access' => $field['group'] !== 'ungroupable');
         if ($handler) {
             $name = $handler->adminLabel() . ' ' . $handler->adminSummary();
             if (!empty($field['relationship']) && !empty($relationships[$field['relationship']])) {
                 $name = '(' . $relationships[$field['relationship']] . ') ' . $name;
             }
             $form['filters'][$id]['name'] = array('#markup' => $name);
         } else {
             $form['filters'][$id]['name'] = array('#markup' => $this->t('Broken field @id', array('@id' => $id)));
         }
         $form['filters'][$id]['removed'] = array('#title' => t('Remove @id', array('@id' => $id)), '#title_display' => 'invisible', '#type' => 'checkbox', '#id' => 'views-removed-' . $id, '#attributes' => array('class' => array('views-remove-checkbox')), '#default_value' => 0);
     }
     $view->getStandardButtons($form, $form_state, 'views_ui_rearrange_filter_form');
     $form['actions']['add_group'] = array('#type' => 'submit', '#value' => $this->t('Create new filter group'), '#id' => 'views-add-group', '#group' => 'add');
     return $form;
 }