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- <?php
- /**
- * Search API data alteration callback that filters out items based on their
- * bundle.
- */
- class SearchApiAlterBundleFilter extends SearchApiAbstractAlterCallback {
- public function supportsIndex(SearchApiIndex $index) {
- return ($info = entity_get_info($index->item_type)) && self::hasBundles($info);
- }
- public function alterItems(array &$items) {
- $info = entity_get_info($this->index->item_type);
- if (self::hasBundles($info) && isset($this->options['bundles'])) {
- $bundles = array_flip($this->options['bundles']);
- $default = (bool) $this->options['default'];
- $bundle_prop = $info['entity keys']['bundle'];
- foreach ($items as $id => $item) {
- if (isset($bundles[$item->$bundle_prop]) == $default) {
- unset($items[$id]);
- }
- }
- }
- }
- public function configurationForm() {
- $info = entity_get_info($this->index->item_type);
- if (self::hasBundles($info)) {
- $options = array();
- foreach ($info['bundles'] as $bundle => $bundle_info) {
- $options[$bundle] = isset($bundle_info['label']) ? $bundle_info['label'] : $bundle;
- }
- $form = array(
- 'default' => array(
- '#type' => 'radios',
- '#title' => t('Which items should be indexed?'),
- '#default_value' => isset($this->options['default']) ? $this->options['default'] : 1,
- '#options' => array(
- 1 => t('All but those from one of the selected bundles'),
- 0 => t('Only those from the selected bundles'),
- ),
- ),
- 'bundles' => array(
- '#type' => 'select',
- '#title' => t('Bundles'),
- '#default_value' => isset($this->options['bundles']) ? $this->options['bundles'] : array(),
- '#options' => $options,
- '#size' => min(4, count($options)),
- '#multiple' => TRUE,
- ),
- );
- }
- else {
- $form = array(
- 'forbidden' => array(
- '#markup' => '<p>' . t("Items indexed by this index don't have bundles and therefore cannot be filtered here.") . '</p>',
- ),
- );
- }
- return $form;
- }
- /**
- * Helper method for figuring out if the entities with the given entity info
- * can be filtered by bundle.
- */
- protected static function hasBundles(array $entity_info) {
- return !empty($entity_info['entity keys']['bundle']) && !empty($entity_info['bundles']);
- }
- }
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