polylang / include / mo.php

mo.php in Polylang 1.8.5, at include/mo.php

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1	<?php
2
3	/*
4	* manages strings translations storage
5	*
6	* @since 1.2
7	*/
8	class PLL_MO extends MO {
9
10	/*
11	* registers the polylang_mo custom post type, only at first object creation
12	*
13	* @since 1.2
14	*/
15	public function __construct() {
16	if ( ! post_type_exists( 'polylang_mo' ) ) {
17	$labels = array( 'name' => __( 'Strings translations', 'polylang' ) );
18	register_post_type( 'polylang_mo', array( 'labels' => $labels, 'rewrite' => false, 'query_var' => false, '_pll' => true ) );
19	}
20	}
21
22	/*
23	* writes a PLL_MO object into a custom post
24	*
25	* @since 1.2
26	*
27	* @param object $lang the language in which we want to export strings
28	*/
29	public function export_to_db( $lang ) {
30	$this->add_entry( $this->make_entry( '', '' ) ); // empty string translation, just in case
31
32	// would be convenient to store the whole object but it would take a huge space in DB
33	// so let's keep only the strings in an array
34	$strings = array();
35	foreach ( $this->entries as $entry ) {
36	$strings[] = array( $entry->singular, $this->translate( $entry->singular ) );
37	}
38
39	// 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
40	$post = empty( $lang->mo_id ) ? array() : get_post( $lang->mo_id, ARRAY_A ); // wp_insert_post wants an array
41
42	$post['post_title'] = 'polylang_mo_' . $lang->term_id;
43	// json_encode would take less space but is slower to decode
44	// wp_insert_post expects slashed data
45	$post['post_content'] = addslashes( serialize( $strings ) );
46	$post['post_status'] = 'private'; // to avoid a conflict with WP Super Cache. See https://wordpress.org/support/topic/polylang_mo-and-404s-take-2
47	$post['post_type'] = 'polylang_mo';
48	wp_insert_post( $post );
49	}
50
51	/*
52	* reads a PLL_MO object from a custom post
53	*
54	* @since 1.2
55	*
56	* @param object $lang the language in which we want to get strings
57	*/
58	public function import_from_db( $lang ) {
59	if ( ! empty( $lang->mo_id ) ) {
60	$post = get_post( $lang->mo_id, OBJECT );
61	$strings = unserialize( $post->post_content );
62	if ( is_array( $strings ) ) {
63	foreach ( $strings as $msg ) {
64	$this->add_entry( $this->make_entry( $msg[0], $msg[1] ) );
65	}
66	}
67	}
68	}
69
70	/*
71	* returns the post id of the post storing the strings translations
72	*
73	* @since 1.4
74	*
75	* @param object $lang
76	* @return int
77	*/
78	public static function get_id( $lang ) {
79	global $wpdb;
80	return $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_title = %s AND post_type= %s", 'polylang_mo_' . $lang->term_id, 'polylang_mo' ) );
81	}
82	}
83