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<?php
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/**
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* @file
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* Contains .
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*/
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/**
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* Sort handler that allows sorting on a specific language.
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*
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* @ingroup views_sort_handlers
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*/
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class views_handler_sort_node_language extends views_handler_sort {
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/**
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* {@inheritdoc}
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*/
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public function can_expose() {
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return FALSE;
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}
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/**
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* {@inheritdoc}
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*/
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public function query() {
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if (isset($this->options['language'])) {
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$langcode = $this->get_system_langcode($this->options['language']);
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// Validate the langcode.
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if (preg_match('/^[a-z0-9\-]+$/i', $langcode)) {
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$this->ensure_my_table();
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// See https://stackoverflow.com/questions/14104055/ordering-by-specific-field-value-first
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$formula = "{$this->table_alias}_language = '{$langcode}'";
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$this->query->add_orderby($this->table_alias, NULL, $this->options['order'], $formula);
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}
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}
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}
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/**
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* Converts a views language code into a Drupal language code.
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*/
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public function get_system_langcode($langcode) {
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global $language_content;
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$default_language = language_default('language');
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$system_langcode = str_replace(array(
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'***CURRENT_LANGUAGE***',
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'***DEFAULT_LANGUAGE***',
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),
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array(
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$language_content->language,
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$default_language,
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),
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$langcode);
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return $system_langcode;
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}
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/**
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* {@inheritdoc}
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*/
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public function option_definition() {
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$options = parent::option_definition();
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$options['language'] = array('default' => '***CURRENT_LANGUAGE***');
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return $options;
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}
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/**
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* {@inheritdoc}
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*/
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public function admin_summary() {
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$summary = parent::admin_summary();
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if ($this->options['language']) {
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$language_options = $this->get_language_options();
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$summary = t('@order, @language', array(
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'@order' => $summary,
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'@language' => $language_options[$this->options['language']],
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));
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}
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return $summary;
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}
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/**
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* Returns languages to sort by.
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*
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* @return array
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* All the languages.
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*/
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public function get_language_options() {
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$languages = array(
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'***CURRENT_LANGUAGE***' => t("Current user's language"),
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'***DEFAULT_LANGUAGE***' => t("Default site language"),
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LANGUAGE_NONE => t('No language'),
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);
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$languages = array_merge($languages, views_language_list());
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return $languages;
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}
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/**
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* {@inheritdoc}
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*/
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public function show_sort_form(&$form, &$form_state) {
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parent::show_sort_form($form, $form_state);
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$form['language'] = array(
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'#type' => 'radios',
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'#title' => t("Specific language"),
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'#description' => t("Choose which specific language to sort by. Not to be confused with the 'Language' sort handler, which sorts by language."),
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'#options' => $this->get_language_options(),
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'#default_value' => $this->options['language'],
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);
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}
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}
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