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islandora_advanced_search.module
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islandora_advanced_search.module
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<?php
/**
* @file
* Contains islandora_advanced_search.module.
*
* This file is part of the Islandora Project.
*
* (c) Islandora Foundation
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
use Drupal\block\Entity\Block;
use Drupal\Component\Utility\Unicode;
use Drupal\Core\Form\FormStateInterface;
use Drupal\islandora_advanced_search\AdvancedSearchQuery;
use Drupal\islandora_advanced_search\Form\SettingsForm;
use Drupal\islandora_advanced_search\Utilities;
use Drupal\search_api\Query\QueryInterface as DrupalQueryInterface;
use Drupal\views\ViewExecutable;
use Solarium\Core\Query\QueryInterface as SolariumQueryInterface;
/**
* Implements hook_theme().
*/
function islandora_advanced_search_theme() {
return [
'facets_item_list__include_exclude_links' => [
'template' => 'facets/facets-item-list--include-exclude-links',
'base hook' => 'facets_item_list',
],
'facets_result_item__include_exclude_links' => [
'template' => 'facets/facets-result-item--include-exclude-links',
'base hook' => 'facets_result_item',
],
'facets_result_item__summary' => [
'template' => 'facets/facets-result-item--summary',
'base hook' => 'facets_result_item',
],
];
}
/**
* Implements hook_library_info_alter().
*/
function islandora_advanced_search_library_info_alter(&$libraries, $extension) {
if ($extension == 'facets') {
// Override facets module javascript with customizations.
$path = '/' . drupal_get_path('module', 'islandora_advanced_search') . '/js/facets';
$libraries['soft-limit']['js'] = [
"$path/soft-limit.js" => [],
];
$libraries['drupal.facets.views-ajax']['js'] = [
"$path/facets-views-ajax.js" => [],
];
}
}
/**
* Implements hook_search_api_solr_converted_query_alter().
*/
function islandora_advanced_search_search_api_solr_converted_query_alter(SolariumQueryInterface $solarium_query, DrupalQueryInterface $search_api_query) {
// We must modify the query itself rather than the representation the
// search_api presents as it is not possible to use the 'OR' operator
// with it as it converts conditions into separate filter queries.
// Additionally filter queries do not affect the score so are not
// suitable for use in the advanced search queries.
$advanced_search_query = new AdvancedSearchQuery();
$advanced_search_query->alterQuery(\Drupal::request(), $solarium_query, $search_api_query);
}
/**
* Implements hook_form_form_id_alter().
*/
function islandora_advanced_search_form_block_form_alter(&$form, FormStateInterface $form_state, $form_id) {
// Islandora removes this condition from the form, but we require it.
// So we can show blocks for nodes which belong to specific models.
// Allowing us to add a block for collections only.
$visibility = [];
$entity_id = $form['id']['#default_value'];
$block = Block::load($entity_id);
if ($block) {
$visibility = $block->getVisibility();
}
$manager = \Drupal::getContainer()->get('plugin.manager.condition');
$condition_id = 'node_has_term';
/** @var \Drupal\Core\Condition\ConditionInterface $condition */
$condition = $manager->createInstance($condition_id, isset($visibility[$condition_id]) ? $visibility[$condition_id] : []);
$form_state->set(['conditions', $condition_id], $condition);
$condition_form = $condition->buildConfigurationForm([], $form_state);
$condition_form['#type'] = 'details';
$condition_form['#title'] = $condition->getPluginDefinition()['label'];
$condition_form['#group'] = 'visibility_tabs';
// Not all blocks are required to give this field.
$condition_form['term']['#required'] = FALSE;
$form['visibility'][$condition_id] = $condition_form;
}
/**
* Implements hook_preprocess_block__facets_summary().
*/
function islandora_advanced_search_preprocess_block__facets_summary(&$variables) {
// Copy data-attributes to the content as the javascript expects
// there to be no elements between the data declaration and the
// content of the block.
foreach ($variables['attributes'] as $key => $value) {
if (substr($key, 0, 4) === "data") {
$variables['content_attributes'][$key] = $value;
}
}
}
/**
* Implements hook_preprocess_preprocess_views_view().
*/
function islandora_advanced_search_preprocess_views_view(&$variables) {
/** @var \Drupal\views\ViewExecutable $view */
$view = &$variables['view'];
$views = Utilities::getPagerViewDisplays();
// Only add the toggle class for view display on displays in which the pager
// has been created for.
if (in_array([$view->id(), $view->current_display], $views)) {
// Toggle between 'list' and 'grid' display depending on url parameter.
$format = \Drupal::request()->query->get('display') ?? 'list';
$variables['attributes']['class'][] = "view-{$format}";
$view->element['#attached']['library'][] = 'islandora_advanced_search/advanced.search.pager';
}
$view = &$variables['view'];
}
/**
* Implements hook_views_pre_view().
*/
function islandora_advanced_search_views_pre_view(ViewExecutable $view, $display_id, array &$args) {
// Allow for recursive searches by disabling contextual filter.
$advanced_search_query = new AdvancedSearchQuery();
$advanced_search_query->alterView(\Drupal::request(), $view, $display_id);
}
/**
* Implements hook_preprocess_facets_summary_item_list().
*/
function islandora_advanced_search_preprocess_facets_summary_item_list(&$variables) {
foreach ($variables['items'] as &$item) {
$item['attributes']['class'][] = 'facet-summary-item';
}
}
/**
* Implements hook_preprocess_facets_item_list().
*/
function islandora_advanced_search_preprocess_facets_item_list(&$variables) {
$widget = $variables['facet']->getWidget();
$soft_limit = $widget['config']['soft_limit'];
// Break into two groups less / more which can display be toggled as a single
// element change rather than showing / hiding all <li> elements individually.
// As its slow and causes the page to snap when loading.
$variables['less'] = array_slice($variables['items'], 0, $soft_limit);
$variables['more'] = array_slice($variables['items'], $soft_limit);
$variables['show_more_label'] = $widget['config']['soft_limit_settings']['show_more_label'];
}
/**
* Implements hook_preprocess_facets_result_item().
*/
function islandora_advanced_search_preprocess_facets_result_item(&$variables) {
$settings = \Drupal::config(SettingsForm::CONFIG_NAME);
$length = $settings->get(SettingsForm::FACET_TRUNCATE);
if (is_numeric($length)) {
// Limit the length of facets display to at most 32 characters.
if (is_string($variables['value'])) {
$variables['value'] = Unicode::truncate(
$variables['value'],
$length,
TRUE,
TRUE
);
}
elseif (is_string($variables['value']['text']['#title'])) {
$variables['value']['text']['#title'] = Unicode::truncate(
$variables['value']['text']['#title'],
$length,
TRUE,
TRUE
);
}
}
}