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<?php |
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|
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/** |
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* manages the static front page and the page for posts on admin side |
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* |
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* @since 1.8 |
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*/ |
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class PLL_Admin_Static_Pages extends PLL_Static_Pages { |
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|
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/** |
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* constructor: setups filters and actions |
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* |
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* @since 1.8 |
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* |
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* @param object $polylang |
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*/ |
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public function __construct( &$polylang ) { |
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parent::__construct( $polylang ); |
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|
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// add post state for translations of the front page and posts page |
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add_filter( 'display_post_states', array( $this, 'display_post_states' ), 10, 2 ); |
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|
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// refresh language cache when a static front page has been translated |
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add_action( 'pll_save_post', array( $this, 'pll_save_post' ), 10, 3 ); |
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|
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// checks if chosen page on front is translated |
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add_filter( 'pre_update_option_page_on_front', array( $this, 'update_page_on_front' ), 10, 2 ); |
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|
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// Prevents WP resetting the option |
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add_filter( 'pre_update_option_show_on_front', array( $this, 'update_show_on_front' ), 10, 2 ); |
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} |
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|
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/** |
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* add post state for translations of the front page and posts page |
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* |
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* @since 1.8 |
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* |
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* @param array $post_states |
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* @param object $post |
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* @return array |
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*/ |
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public function display_post_states( $post_states, $post ) { |
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if ( in_array( $post->ID, $this->model->get_languages_list( array( 'fields' => 'page_on_front' ) ) ) ) { |
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$post_states['page_on_front'] = __( 'Front Page' ); |
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} |
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|
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if ( in_array( $post->ID, $this->model->get_languages_list( array( 'fields' => 'page_for_posts' ) ) ) ) { |
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$post_states['page_for_posts'] = __( 'Posts Page' ); |
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} |
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|
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return $post_states; |
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} |
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|
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/** |
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* refresh language cache when a static front page has been translated |
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* |
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* @since 1.8 |
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* |
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* @param int $post_id not used |
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* @param object $post not used |
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* @param array $translations |
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*/ |
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public function pll_save_post( $post_id, $post, $translations ) { |
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if ( in_array( $this->page_on_front, $translations ) ) { |
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$this->model->clean_languages_cache(); |
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} |
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} |
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|
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/** |
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* prevents choosing an untranslated static front page |
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* displays an error message |
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* |
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* @since 1.6 |
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* |
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* @param int $page_id new page on front page id |
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* @param int $old_id old page on front page_id |
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* @return int |
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*/ |
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public function update_page_on_front( $page_id, $old_id ) { |
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if ( $page_id ) { |
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$translations = count( $this->model->post->get_translations( $page_id ) ); |
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$languages = count( $this->model->get_languages_list() ); |
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|
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if ( $languages > 1 && $translations != $languages ) { |
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$page_id = $old_id; |
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add_settings_error( 'reading', 'pll_page_on_front_error', __( 'The chosen static front page must be translated in all languages.', 'polylang' ) ); |
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} |
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} |
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|
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return $page_id; |
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} |
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|
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/** |
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* Prevents WP resetting the option if the admin language filter is active for a language with no pages |
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* |
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* @since 1.9.3 |
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* |
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* @param string $value |
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* @param string $old_value |
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* @return string |
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*/ |
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public function update_show_on_front( $value, $old_value ) { |
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if ( ! empty( $GLOBALS['pagenow'] ) && 'options-reading.php' === $GLOBALS['pagenow'] && 'posts' === $value && ! get_pages() && get_pages( array( 'lang' => '' ) ) ) { |
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$value = $old_value; |
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} |
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return $value; |
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} |
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} |
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