materio-base-legacy/includes/callback_add_viewed_entity.inc
2013-03-15 17:32:30 +01:00

99 lines
3.1 KiB
PHP

<?php
/**
* Search API data alteration callback that adds an URL field for all items.
*/
class SearchApiAlterAddViewedEntity extends SearchApiAbstractAlterCallback {
/**
* Only support indexes containing entities.
*
* @see SearchApiAlterCallbackInterface::supportsIndex()
*/
public function supportsIndex(SearchApiIndex $index) {
return (bool) entity_get_info($index->item_type);
}
public function configurationForm() {
$info = entity_get_info($this->index->item_type);
$view_modes = array();
foreach ($info['view modes'] as $key => $mode) {
$view_modes[$key] = $mode['label'];
}
$this->options += array('mode' => reset($view_modes));
if (count($view_modes) > 1) {
$form['mode'] = array(
'#type' => 'select',
'#title' => t('View mode'),
'#options' => $view_modes,
'#default_value' => $this->options['mode'],
);
}
else {
$form['mode'] = array(
'#type' => 'value',
'#value' => $this->options['mode'],
);
if ($view_modes) {
$form['note'] = array(
'#markup' => '<p>' . t('Entities of type %type have only a single view mode. ' .
'Therefore, no selection needs to be made.', array('%type' => $info['label'])) . '</p>',
);
}
else {
$form['note'] = array(
'#markup' => '<p>' . t('Entities of type %type have no defined view modes. ' .
'This might either mean that they are always displayed the same way, or that they cannot be processed by this alteration at all. ' .
'Please consider this when using this alteration.', array('%type' => $info['label'])) . '</p>',
);
}
}
return $form;
}
public function alterItems(array &$items) {
// Prevent session information from being saved while indexing.
drupal_save_session(FALSE);
// Force the current user to anonymous to prevent access bypass in search
// indexes.
$original_user = $GLOBALS['user'];
$GLOBALS['user'] = drupal_anonymous_user();
$type = $this->index->item_type;
$mode = empty($this->options['mode']) ? 'full' : $this->options['mode'];
foreach ($items as $id => &$item) {
// Since we can't really know what happens in entity_view() and render(),
// we use try/catch. This will at least prevent some errors, even though
// it's no protection against fatal errors and the like.
try {
$render = entity_view($type, array(entity_id($type, $item) => $item), $mode);
$text = render($render);
if (!$text) {
$item->search_api_viewed = NULL;
continue;
}
$item->search_api_viewed = $text;
}
catch (Exception $e) {
$item->search_api_viewed = NULL;
}
}
// Restore the user.
$GLOBALS['user'] = $original_user;
drupal_save_session(TRUE);
}
public function propertyInfo() {
return array(
'search_api_viewed' => array(
'label' => t('Entity HTML output'),
'description' => t('The whole HTML content of the entity when viewed.'),
'type' => 'text',
),
);
}
}