<?php
/**
* @package Polylang
*/
/**
* Manages copy and synchronization of terms and post metas on front
*
* @since 2.4
*/
class PLL_Sync {
/**
* @var PLL_Sync_Tax
*/
public $taxonomies;
/**
* @var PLL_Sync_Post_Metas
*/
public $post_metas;
/**
* @var PLL_Sync_Term_Metas
*/
public $term_metas;
/**
* Stores the plugin options.
*
* @var array
*/
protected $options;
/**
* @var PLL_Model
*/
protected $model;
/**
* Constructor
*
* @since 1.2
*
* @param object $polylang The Polylang object.
*/
public function __construct( &$polylang ) {
$this->model = &$polylang->model;
$this->options = &$polylang->options;
$this->taxonomies = new PLL_Sync_Tax( $polylang );
$this->post_metas = new PLL_Sync_Post_Metas( $polylang );
$this->term_metas = new PLL_Sync_Term_Metas( $polylang );
add_filter( 'wp_insert_post_parent', array( $this, 'can_sync_post_parent' ), 10, 3 );
add_filter( 'wp_insert_post_data', array( $this, 'can_sync_post_data' ), 10, 2 );
add_action( 'pll_save_post', array( $this, 'pll_save_post' ), 10, 3 );
add_action( 'created_term', array( $this, 'sync_term_parent' ), 10, 3 );
add_action( 'edited_term', array( $this, 'sync_term_parent' ), 10, 3 );
add_action( 'pll_duplicate_term', array( $this->term_metas, 'copy' ), 10, 3 );
if ( $this->options['media_support'] ) {
add_action( 'pll_translate_media', array( $this->taxonomies, 'copy' ), 10, 3 );
add_action( 'pll_translate_media', array( $this->post_metas, 'copy' ), 10, 3 );
add_action( 'edit_attachment', array( $this, 'edit_attachment' ) );
}
add_filter( 'pre_update_option_sticky_posts', array( $this, 'sync_sticky_posts' ), 10, 2 );
}
/**
* Get post fields to synchronize.
*
* @since 2.4
*
* @param WP_Post $post Post object.
* @return array
*/
protected function get_fields_to_sync( $post ) {
$postarr = array();
foreach ( array( 'comment_status', 'ping_status', 'menu_order' ) as $property ) {
if ( in_array( $property, $this->options['sync'] ) ) {
$postarr[ $property ] = $post->$property;
}
}
if ( in_array( 'post_date', $this->options['sync'] ) ) {
$postarr['post_date'] = $post->post_date;
$postarr['post_date_gmt'] = $post->post_date_gmt;
}
if ( in_array( 'post_parent', $this->options['sync'] ) ) {
$postarr['post_parent'] = wp_get_post_parent_id( $post->ID );
}
return $postarr;
}
/**
* Prevents synchronized post parent modification if the current user hasn't enough rights
*
* @since 2.6
*
* @param int $post_parent Post parent ID
* @param int $post_id Post ID, unused
* @param array $postarr Array of parsed post data
* @return int
*/
public function can_sync_post_parent( $post_parent, $post_id, $postarr ) {
if ( ! empty( $postarr['ID'] ) && ! $this->model->post->current_user_can_synchronize( $postarr['ID'] ) ) {
$tr_ids = $this->model->post->get_translations( $postarr['ID'] );
foreach ( $tr_ids as $tr_id ) {
if ( $tr_id !== $postarr['ID'] && $post = get_post( $tr_id ) ) {
$post_parent = $post->post_parent;
break;
}
}
}
return $post_parent;
}
/**
* Prevents synchronized post data modification if the current user hasn't enough rights
*
* @since 2.6
*
* @param array $data An array of slashed post data.
* @param array $postarr An array of sanitized, but otherwise unmodified post data.
* @return array
*/
public function can_sync_post_data( $data, $postarr ) {
if ( ! empty( $postarr['ID'] ) && ! $this->model->post->current_user_can_synchronize( $postarr['ID'] ) ) {
foreach ( $this->model->post->get_translations( $postarr['ID'] ) as $tr_id ) {
if ( $tr_id !== $postarr['ID'] && $post = get_post( $tr_id ) ) {
$to_sync = $this->get_fields_to_sync( $post );
$data = array_merge( $data, $to_sync );
break;
}
}
}
return $data;
}
/**
* Synchronizes post fields in translations.
*
* @since 2.4
*
* @param int $post_id Post id.
* @param WP_Post $post Post object.
* @param int[] $translations Post translations.
* @return void
*/
public function pll_save_post( $post_id, $post, $translations ) {
global $wpdb;
if ( $this->model->post->current_user_can_synchronize( $post_id ) ) {
$postarr = $this->get_fields_to_sync( $post );
if ( ! empty( $postarr ) ) {
foreach ( $translations as $lang => $tr_id ) {
if ( ! $tr_id || $tr_id === $post_id ) {
continue;
}
$tr_arr = $postarr;
unset( $tr_arr['post_parent'] );
// Do not update the translation parent if the user set a parent with no translation.
if ( isset( $postarr['post_parent'] ) ) {
$post_parent = $postarr['post_parent'] ? $this->model->post->get_translation( $postarr['post_parent'], $lang ) : 0;
if ( ! ( $postarr['post_parent'] && ! $post_parent ) ) {
$tr_arr['post_parent'] = $post_parent;
}
}
// Update all the rows at once.
if ( ! empty( $tr_arr ) ) {
// Don't use wp_update_post to avoid infinite loop.
$wpdb->update( $wpdb->posts, $tr_arr, array( 'ID' => $tr_id ) );
clean_post_cache( $tr_id );
}
}
}
}
}
/**
* Synchronize term parent in translations.
* Calling clean_term_cache *after* this is mandatory otherwise the $taxonomy_children option is not correctly updated
*
* @since 2.3
*
* @param int $term_id Term id.
* @param int $tt_id Term taxonomy id, not used.
* @param string $taxonomy Taxonomy name.
* @return void
*/
public function sync_term_parent( $term_id, $tt_id, $taxonomy ) {
global $wpdb;
if ( ! is_taxonomy_hierarchical( $taxonomy ) || ! $this->model->is_translated_taxonomy( $taxonomy ) ) {
return;
}
$term = get_term( $term_id );
if ( ! $term instanceof WP_Term ) {
return;
}
$translations = $this->model->term->get_translations( $term_id );
foreach ( $translations as $lang => $tr_id ) {
if ( $tr_id === $term_id ) {
continue;
}
$tr_parent = $this->model->term->get_translation( $term->parent, $lang );
$tr_term = get_term( (int) $tr_id, $taxonomy );
if ( str_starts_with( current_filter(), 'created_' ) && 0 === $tr_parent ) {
// Do not remove the existing hierarchy of translations when creating new term without parent.
continue;
}
if ( $tr_term instanceof WP_Term && ! ( $term->parent && empty( $tr_parent ) ) ) {
$wpdb->update(
$wpdb->term_taxonomy,
array( 'parent' => $tr_parent ?: 0 ),
array( 'term_taxonomy_id' => $tr_term->term_taxonomy_id )
);
clean_term_cache( $tr_id, $taxonomy ); // OK since WP 3.9.
}
}
}
/**
* Synchronizes terms and metas in translations for media
*
* @since 1.8
*
* @param int $post_id post id
* @return void
*/
public function edit_attachment( $post_id ) {
$this->pll_save_post( $post_id, get_post( $post_id ), $this->model->post->get_translations( $post_id ) );
}
/**
* Synchronize sticky posts.
*
* @since 2.3
*
* @param int[] $value New option value.
* @param int[] $old_value Old option value.
* @return int[]
*/
public function sync_sticky_posts( $value, $old_value ) {
if ( in_array( 'sticky_posts', $this->options['sync'] ) ) {
// Stick post
if ( $sticked = array_diff( $value, $old_value ) ) {
$translations = $this->model->post->get_translations( reset( $sticked ) );
$value = array_unique( array_merge( $value, array_values( $translations ) ) );
}
// Unstick post
if ( $unsticked = array_diff( $old_value, $value ) ) {
$translations = $this->model->post->get_translations( reset( $unsticked ) );
$value = array_unique( array_diff( $value, array_values( $translations ) ) );
}
}
return $value;
}
}