/core/modules/views/src/Plugin/views/exposed_form/ExposedFormPluginBase.php
PHP | 379 lines | 253 code | 47 blank | 79 comment | 42 complexity | 7772d0124a26b268572347502e95e568 MD5 | raw file
- <?php
- namespace Drupal\views\Plugin\views\exposed_form;
- use Drupal\Component\Utility\Html;
- use Drupal\Core\Cache\Cache;
- use Drupal\Core\Cache\CacheableDependencyInterface;
- use Drupal\Core\Form\FormState;
- use Drupal\Core\Form\FormStateInterface;
- use Drupal\views\Plugin\views\PluginBase;
- /**
- * @defgroup views_exposed_form_plugins Views exposed form plugins
- * @{
- * Plugins that handle validation, submission, and rendering of exposed forms.
- *
- * Exposed forms are used for filters, sorts, and pager settings that are
- * exposed to site visitors. Exposed form plugins handle the rendering,
- * validation, and submission of exposed forms, and may add additional form
- * elements.
- *
- * Exposed form plugins extend
- * \Drupal\views\Plugin\views\exposed_form\ExposedFormPluginBase. They must be
- * annotated with \Drupal\views\Annotation\ViewsExposedForm annotation,
- * and they must be in namespace directory Plugin\views\exposed_form.
- */
- /**
- * Base class for Views exposed filter form plugins.
- */
- abstract class ExposedFormPluginBase extends PluginBase implements CacheableDependencyInterface {
- /**
- * {@inheritdoc}
- */
- protected $usesOptions = TRUE;
- protected function defineOptions() {
- $options = parent::defineOptions();
- $options['submit_button'] = array('default' => $this->t('Apply'));
- $options['reset_button'] = array('default' => FALSE);
- $options['reset_button_label'] = array('default' => $this->t('Reset'));
- $options['exposed_sorts_label'] = array('default' => $this->t('Sort by'));
- $options['expose_sort_order'] = array('default' => TRUE);
- $options['sort_asc_label'] = array('default' => $this->t('Asc'));
- $options['sort_desc_label'] = array('default' => $this->t('Desc'));
- return $options;
- }
- public function buildOptionsForm(&$form, FormStateInterface $form_state) {
- parent::buildOptionsForm($form, $form_state);
- $form['submit_button'] = array(
- '#type' => 'textfield',
- '#title' => $this->t('Submit button text'),
- '#default_value' => $this->options['submit_button'],
- '#required' => TRUE,
- );
- $form['reset_button'] = array(
- '#type' => 'checkbox',
- '#title' => $this->t('Include reset button (resets all applied exposed filters)'),
- '#default_value' => $this->options['reset_button'],
- );
- $form['reset_button_label'] = array(
- '#type' => 'textfield',
- '#title' => $this->t('Reset button label'),
- '#description' => $this->t('Text to display in the reset button of the exposed form.'),
- '#default_value' => $this->options['reset_button_label'],
- '#required' => TRUE,
- '#states' => array(
- 'invisible' => array(
- 'input[name="exposed_form_options[reset_button]"]' => array('checked' => FALSE),
- ),
- ),
- );
- $form['exposed_sorts_label'] = array(
- '#type' => 'textfield',
- '#title' => $this->t('Exposed sorts label'),
- '#default_value' => $this->options['exposed_sorts_label'],
- '#required' => TRUE,
- );
- $form['expose_sort_order'] = array(
- '#type' => 'checkbox',
- '#title' => $this->t('Allow people to choose the sort order'),
- '#description' => $this->t('If sort order is not exposed, the sort criteria settings for each sort will determine its order.'),
- '#default_value' => $this->options['expose_sort_order'],
- );
- $form['sort_asc_label'] = array(
- '#type' => 'textfield',
- '#title' => $this->t('Label for ascending sort'),
- '#default_value' => $this->options['sort_asc_label'],
- '#required' => TRUE,
- '#states' => array(
- 'visible' => array(
- 'input[name="exposed_form_options[expose_sort_order]"]' => array('checked' => TRUE),
- ),
- ),
- );
- $form['sort_desc_label'] = array(
- '#type' => 'textfield',
- '#title' => $this->t('Label for descending sort'),
- '#default_value' => $this->options['sort_desc_label'],
- '#required' => TRUE,
- '#states' => array(
- 'visible' => array(
- 'input[name="exposed_form_options[expose_sort_order]"]' => array('checked' => TRUE),
- ),
- ),
- );
- }
- /**
- * Render the exposed filter form.
- *
- * This actually does more than that; because it's using FAPI, the form will
- * also assign data to the appropriate handlers for use in building the
- * query.
- */
- public function renderExposedForm($block = FALSE) {
- // Deal with any exposed filters we may have, before building.
- $form_state = (new FormState())
- ->setStorage([
- 'view' => $this->view,
- 'display' => &$this->view->display_handler->display,
- 'rerender' => TRUE,
- ])
- ->setMethod('get')
- ->setAlwaysProcess()
- ->disableRedirect();
- // Some types of displays (eg. attachments) may wish to use the exposed
- // filters of their parent displays instead of showing an additional
- // exposed filter form for the attachment as well as that for the parent.
- if (!$this->view->display_handler->displaysExposed() || (!$block && $this->view->display_handler->getOption('exposed_block'))) {
- $form_state->set('rerender', NULL);
- }
- if (!empty($this->ajax)) {
- $form_state->set('ajax', TRUE);
- }
- $form = \Drupal::formBuilder()->buildForm('\Drupal\views\Form\ViewsExposedForm', $form_state);
- if (!$this->view->display_handler->displaysExposed() || (!$block && $this->view->display_handler->getOption('exposed_block'))) {
- return array();
- }
- else {
- return $form;
- }
- }
- public function query() {
- $view = $this->view;
- $exposed_data = isset($view->exposed_data) ? $view->exposed_data : array();
- $sort_by = isset($exposed_data['sort_by']) ? $exposed_data['sort_by'] : NULL;
- if (!empty($sort_by)) {
- // Make sure the original order of sorts is preserved
- // (e.g. a sticky sort is often first)
- if (isset($view->sort[$sort_by])) {
- $view->query->orderby = array();
- foreach ($view->sort as $key => $sort) {
- if (!$sort->isExposed()) {
- $sort->query();
- }
- elseif ($key == $sort_by) {
- if (isset($exposed_data['sort_order']) && in_array($exposed_data['sort_order'], array('ASC', 'DESC'))) {
- $sort->options['order'] = $exposed_data['sort_order'];
- }
- $sort->setRelationship();
- $sort->query();
- }
- }
- }
- }
- }
- public function preRender($values) { }
- public function postRender(&$output) { }
- public function preExecute() { }
- public function postExecute() { }
- /**
- * Alters the view exposed form.
- *
- * @param $form
- * The form build array. Passed by reference.
- * @param $form_state
- * The form state. Passed by reference.
- */
- public function exposedFormAlter(&$form, FormStateInterface $form_state) {
- if (!empty($this->options['submit_button'])) {
- $form['actions']['submit']['#value'] = $this->options['submit_button'];
- }
- // Check if there is exposed sorts for this view
- $exposed_sorts = array();
- foreach ($this->view->sort as $id => $handler) {
- if ($handler->canExpose() && $handler->isExposed()) {
- $exposed_sorts[$id] = Html::escape($handler->options['expose']['label']);
- }
- }
- if (count($exposed_sorts)) {
- $form['sort_by'] = array(
- '#type' => 'select',
- '#options' => $exposed_sorts,
- '#title' => $this->options['exposed_sorts_label'],
- );
- $sort_order = array(
- 'ASC' => $this->options['sort_asc_label'],
- 'DESC' => $this->options['sort_desc_label'],
- );
- $user_input = $form_state->getUserInput();
- if (isset($user_input['sort_by']) && isset($this->view->sort[$user_input['sort_by']])) {
- $default_sort_order = $this->view->sort[$user_input['sort_by']]->options['order'];
- }
- else {
- $first_sort = reset($this->view->sort);
- $default_sort_order = $first_sort->options['order'];
- }
- if (!isset($user_input['sort_by'])) {
- $keys = array_keys($exposed_sorts);
- $user_input['sort_by'] = array_shift($keys);
- $form_state->setUserInput($user_input);
- }
- if ($this->options['expose_sort_order']) {
- $form['sort_order'] = array(
- '#type' => 'select',
- '#options' => $sort_order,
- '#title' => $this->t('Order', array(), array('context' => 'Sort order')),
- '#default_value' => $default_sort_order,
- );
- }
- $form['submit']['#weight'] = 10;
- }
- if (!empty($this->options['reset_button'])) {
- $form['actions']['reset'] = array(
- '#value' => $this->options['reset_button_label'],
- '#type' => 'submit',
- '#weight' => 10,
- );
- // Get an array of exposed filters, keyed by identifier option.
- $exposed_filters = [];
- foreach ($this->view->filter as $id => $handler) {
- if ($handler->canExpose() && $handler->isExposed() && !empty($handler->options['expose']['identifier'])) {
- $exposed_filters[$handler->options['expose']['identifier']] = $id;
- }
- }
- $all_exposed = array_merge($exposed_sorts, $exposed_filters);
- // Set the access to FALSE if there is no exposed input.
- if (!array_intersect_key($all_exposed, $this->view->getExposedInput())) {
- $form['actions']['reset']['#access'] = FALSE;
- }
- }
- $pager = $this->view->display_handler->getPlugin('pager');
- if ($pager) {
- $pager->exposedFormAlter($form, $form_state);
- $form_state->set('pager_plugin', $pager);
- }
- }
- public function exposedFormValidate(&$form, FormStateInterface $form_state) {
- if ($pager_plugin = $form_state->get('pager_plugin')) {
- $pager_plugin->exposedFormValidate($form, $form_state);
- }
- }
- /**
- * This function is executed when exposed form is submitted.
- *
- * @param $form
- * Nested array of form elements that comprise the form.
- * @param $form_state
- * The current state of the form.
- * @param $exclude
- * Nested array of keys to exclude of insert into
- * $view->exposed_raw_input
- */
- public function exposedFormSubmit(&$form, FormStateInterface $form_state, &$exclude) {
- if (!$form_state->isValueEmpty('op') && $form_state->getValue('op') == $this->options['reset_button_label']) {
- $this->resetForm($form, $form_state);
- }
- if ($pager_plugin = $form_state->get('pager_plugin')) {
- $pager_plugin->exposedFormSubmit($form, $form_state, $exclude);
- $exclude[] = 'pager_plugin';
- }
- }
- public function resetForm(&$form, FormStateInterface $form_state) {
- // _SESSION is not defined for users who are not logged in.
- // If filters are not overridden, store the 'remember' settings on the
- // default display. If they are, store them on this display. This way,
- // multiple displays in the same view can share the same filters and
- // remember settings.
- $display_id = ($this->view->display_handler->isDefaulted('filters')) ? 'default' : $this->view->current_display;
- if (isset($_SESSION['views'][$this->view->storage->id()][$display_id])) {
- unset($_SESSION['views'][$this->view->storage->id()][$display_id]);
- }
- // Set the form to allow redirect.
- if (empty($this->view->live_preview) && !\Drupal::request()->isXmlHttpRequest()) {
- $form_state->disableRedirect(FALSE);
- }
- else {
- $form_state->setRebuild();
- $this->view->exposed_data = array();
- }
- $form_state->setRedirect('<current>');
- $form_state->setValues([]);
- }
- /**
- * {@inheritdoc}
- */
- public function getCacheMaxAge() {
- return Cache::PERMANENT;
- }
- /**
- * {@inheritdoc}
- */
- public function getCacheContexts() {
- $contexts = [];
- if ($this->options['expose_sort_order']) {
- // The sort order query arg is just important in case there is a exposed
- // sort order.
- $has_exposed_sort_handler = FALSE;
- /** @var \Drupal\views\Plugin\views\sort\SortPluginBase $sort_handler */
- foreach ($this->displayHandler->getHandlers('sort') as $sort_handler) {
- if ($sort_handler->isExposed()) {
- $has_exposed_sort_handler = TRUE;
- }
- }
- if ($has_exposed_sort_handler) {
- $contexts[] = 'url.query_args:sort_order';
- }
- }
- // Merge in cache contexts for all exposed filters to prevent display of
- // cached forms.
- foreach ($this->displayHandler->getHandlers('filter') as $filter_hander) {
- if ($filter_hander->isExposed()) {
- $contexts = Cache::mergeContexts($contexts, $filter_hander->getCacheContexts());
- }
- }
- return $contexts;
- }
- /**
- * {@inheritdoc}
- */
- public function getCacheTags() {
- return [];
- }
- }
- /**
- * @}
- */