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106 lines
3.1 KiB
PHP
106 lines
3.1 KiB
PHP
<?php
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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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* @since 2.1 Stores the strings in a post meta instead of post content to avoid unserialize issues (See #63)
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*/
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class PLL_MO extends MO {
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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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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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* Writes a PLL_MO object into a custom post meta
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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( $this->make_entry( '', '' ) ); // Empty string translation, just in case
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// Would be convenient to store the whole object but it would take a huge space in DB
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// So let's keep only the strings in an array
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$strings = array();
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foreach ( $this->entries as $entry ) {
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$strings[] = array( $entry->singular, $this->translate( $entry->singular ) );
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}
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$strings = wp_slash( $strings ); // Avoid breaking slashed strings in update_post_meta. See https://codex.wordpress.org/Function_Reference/update_post_meta#Character_Escaping
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if ( empty( $lang->mo_id ) ) {
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$post = array(
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'post_title' => 'polylang_mo_' . $lang->term_id,
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'post_status' => 'private', // To avoid a conflict with WP Super Cache. See https://wordpress.org/support/topic/polylang_mo-and-404s-take-2
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'post_type' => 'polylang_mo',
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);
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$mo_id = wp_insert_post( $post );
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update_post_meta( $mo_id, '_pll_strings_translations', $strings );
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} else {
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update_post_meta( $lang->mo_id, '_pll_strings_translations', $strings );
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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 meta
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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( $lang->mo_id ) ) {
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$strings = get_post_meta( $lang->mo_id, '_pll_strings_translations', true );
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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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* 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 $wpdb;
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$ids = wp_cache_get( 'polylang_mo_ids' );
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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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// 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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* 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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