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<?php |
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|
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/** |
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* manages strings translations storage |
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* |
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* @since 1.2 |
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*/ |
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class PLL_MO extends MO { |
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|
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/** |
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* registers the polylang_mo custom post type, only at first object creation |
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* |
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* @since 1.2 |
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*/ |
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public function __construct() { |
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if ( ! post_type_exists( 'polylang_mo' ) ) { |
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$labels = array( 'name' => __( 'Strings translations', 'polylang' ) ); |
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register_post_type( 'polylang_mo', array( 'labels' => $labels, 'rewrite' => false, 'query_var' => false, '_pll' => true ) ); |
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|
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add_action( 'pll_add_language', array( $this, 'clean_cache' ) ); |
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} |
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} |
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|
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/** |
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* writes a PLL_MO object into a custom post |
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* |
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* @since 1.2 |
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* |
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* @param object $lang the language in which we want to export strings |
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*/ |
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public function export_to_db( $lang ) { |
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$this->add_entry( $this->make_entry( '', '' ) ); // empty string translation, just in case |
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|
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// would be convenient to store the whole object but it would take a huge space in DB |
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// so let's keep only the strings in an array |
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$strings = array(); |
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foreach ( $this->entries as $entry ) { |
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$strings[] = array( $entry->singular, $this->translate( $entry->singular ) ); |
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} |
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|
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// we need to make sure that $post is empty when $lang->mo_id is empty: see https://wordpress.org/support/topic/problem-when-adding-a-language |
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$post = empty( $lang->mo_id ) ? array() : get_post( $lang->mo_id, ARRAY_A ); // wp_insert_post wants an array |
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|
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$post['post_title'] = 'polylang_mo_' . $lang->term_id; |
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// json_encode would take less space but is slower to decode |
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// wp_insert_post expects slashed data |
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$post['post_content'] = addslashes( serialize( $strings ) ); |
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$post['post_status'] = 'private'; // to avoid a conflict with WP Super Cache. See https://wordpress.org/support/topic/polylang_mo-and-404s-take-2 |
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$post['post_type'] = 'polylang_mo'; |
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wp_insert_post( $post ); |
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} |
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|
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/** |
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* reads a PLL_MO object from a custom post |
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* |
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* @since 1.2 |
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* |
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* @param object $lang the language in which we want to get strings |
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*/ |
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public function import_from_db( $lang ) { |
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if ( ! empty( $lang->mo_id ) ) { |
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$post = get_post( $lang->mo_id, OBJECT ); |
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$strings = unserialize( $post->post_content ); |
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if ( is_array( $strings ) ) { |
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foreach ( $strings as $msg ) { |
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$this->add_entry( $this->make_entry( $msg[0], $msg[1] ) ); |
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} |
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} |
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} |
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} |
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|
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/** |
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* returns the post id of the post storing the strings translations |
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* |
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* @since 1.4 |
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* |
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* @param object $lang |
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* @return int |
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*/ |
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public static function get_id( $lang ) { |
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global $wpdb; |
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|
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$ids = wp_cache_get( 'polylang_mo_ids' ); |
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|
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if ( empty( $ids ) ) { |
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$ids = $wpdb->get_results( "SELECT post_title, ID FROM $wpdb->posts WHERE post_type='polylang_mo'", OBJECT_K ); |
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wp_cache_add( 'polylang_mo_ids', $ids ); |
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} |
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|
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// The mo id for a language can be transiently empty |
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return isset( $ids[ 'polylang_mo_' . $lang->term_id ] ) ? $ids[ 'polylang_mo_' . $lang->term_id ]->ID : null; |
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} |
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|
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/** |
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* Invalidate the cache when adding a new language |
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* |
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* @since 2.0.5 |
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*/ |
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public function clean_cache() { |
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wp_cache_delete( 'polylang_mo_ids' ); |
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} |
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} |
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