name : links-default.php <?php /** * Links model for default permalinks * for example mysite.com/?somevar=something&lang=en * implements the "links_model interface" * * @since 1.2 */ class PLL_Links_Default extends PLL_Links_Model { public $using_permalinks = false; /** * Adds language information to an url * links_model interface * * @since 1.2 * * @param string $url url to modify * @param object $lang language * @return string modified url */ public function add_language_to_link( $url, $lang ) { return empty( $lang ) || ( $this->options['hide_default'] && $this->options['default_lang'] == $lang->slug ) ? $url : add_query_arg( 'lang', $lang->slug, $url ); } /** * Removes the language information from an url * links_model interface * * @since 1.2 * * @param string $url url to modify * @return string modified url */ public function remove_language_from_link( $url ) { return remove_query_arg( 'lang', $url ); } /** * Returns the link to the first page * links_model interface * * @since 1.2 * * @param string $url url to modify * @return string modified url */ public function remove_paged_from_link( $url ) { return remove_query_arg( 'paged', $url ); } /** * Returns the link to the paged page when using pretty permalinks * * @since 1.5 * * @param string $url url to modify * @param int $page * @return string modified url */ public function add_paged_to_link( $url, $page ) { return add_query_arg( array( 'paged' => $page ), $url ); } /** * Gets the language slug from the url if present * links_model interface * * @since 1.2 * @since 2.0 add $url argument * * @param string $url optional, defaults to current url * @return string language slug */ public function get_language_from_url( $url = '' ) { if ( empty( $url ) ) { $url = pll_get_requested_url(); } $pattern = '#lang=(' . implode( '|', $this->model->get_languages_list( array( 'fields' => 'slug' ) ) ) . ')#'; return preg_match( $pattern, trailingslashit( $url ), $matches ) ? $matches[1] : ''; // $matches[1] is the slug of the requested language } /** * Returns the static front page url * * @since 1.8 * * @param object $lang * @return string */ public function front_page_url( $lang ) { if ( $this->options['hide_default'] && $lang->slug == $this->options['default_lang'] ) { return trailingslashit( $this->home ); } $url = home_url( '/?page_id=' . $lang->page_on_front ); return $this->options['force_lang'] ? $this->add_language_to_link( $url, $lang ) : $url; } }