Current File : /var/www/arphotolab.eco-n-tech.co.uk/wp-content/plugins/polylang/modules/sync/sync-tax.php
<?php
/**
* @package Polylang
*/
/**
* A class to manage the sychronization of taxonomy terms across posts translations
*
* @since 2.3
*/
class PLL_Sync_Tax {
/**
* Stores the plugin options.
*
* @var array
*/
protected $options;
/**
* @var PLL_Model
*/
protected $model;
/**
* Constructor
*
* @since 2.3
*
* @param object $polylang
*/
public function __construct( &$polylang ) {
$this->model = &$polylang->model;
$this->options = &$polylang->options;
add_action( 'set_object_terms', array( $this, 'set_object_terms' ), 10, 5 );
add_action( 'pll_save_term', array( $this, 'create_term' ), 10, 3 );
add_action( 'pre_delete_term', array( $this, 'pre_delete_term' ) );
add_action( 'delete_term', array( $this, 'delete_term' ) );
}
/**
* Get the list of taxonomies to copy or to synchronize.
*
* @since 1.7
* @since 2.1 The `$from`, `$to`, `$lang` parameters were added.
*
* @param bool $sync True if it is synchronization, false if it is a copy.
* @param int $from Id of the post from which we copy informations, optional, defaults to null.
* @param int $to Id of the post to which we paste informations, optional, defaults to null.
* @param string $lang Language slug, optional, defaults to null.
* @return string[] List of taxonomy names.
*/
protected function get_taxonomies_to_copy( $sync, $from = null, $to = null, $lang = null ) {
$taxonomies = ! $sync || in_array( 'taxonomies', $this->options['sync'] ) ? $this->model->get_translated_taxonomies() : array();
if ( ! $sync || in_array( 'post_format', $this->options['sync'] ) ) {
$taxonomies[] = 'post_format';
}
/**
* Filters the taxonomies to copy or synchronize.
*
* @since 1.7
* @since 2.1 The `$from`, `$to`, `$lang` parameters were added.
*
* @param string[] $taxonomies List of taxonomy names.
* @param bool $sync True if it is synchronization, false if it is a copy.
* @param int $from Id of the post from which we copy informations.
* @param int $to Id of the post to which we paste informations.
* @param string $lang Language slug.
*/
return array_unique( apply_filters( 'pll_copy_taxonomies', $taxonomies, $sync, $from, $to, $lang ) );
}
/**
* When copying or synchronizing terms, translate terms in translatable taxonomies
*
* @since 2.3
*
* @param int $object_id Object ID.
* @param int[] $terms List of terms ids assigned to the source post.
* @param string $taxonomy Taxonomy name.
* @param string $lang Language slug.
* @return int[] List of terms ids to assign to the target post.
*/
protected function maybe_translate_terms( $object_id, $terms, $taxonomy, $lang ) {
if ( is_array( $terms ) && $this->model->is_translated_taxonomy( $taxonomy ) ) {
$newterms = array();
// Convert to term ids if we got tag names
$strings = array_map( 'is_string', $terms );
if ( in_array( true, $strings, true ) ) {
$terms = get_the_terms( $object_id, $taxonomy );
$terms = wp_list_pluck( $terms, 'term_id' );
}
foreach ( $terms as $term ) {
/**
* Filter the translated term when a post translation is created or synchronized
*
* @since 2.3
*
* @param int $tr_term Translated term id
* @param int $term Source term id
* @param string $lang Language slug
*/
if ( $term_id = apply_filters( 'pll_maybe_translate_term', $this->model->term->get_translation( $term, $lang ), $term, $lang ) ) {
$newterms[] = (int) $term_id; // Cast is important otherwise we get 'numeric' tags
}
}
return $newterms;
}
return $terms; // Empty $terms or untranslated taxonomy
}
/**
* Maybe copy taxonomy terms from one post to the other.
*
* @since 2.6
*
* @param int $object_id Source object ID.
* @param int $tr_id Target object ID.
* @param string $lang Target language.
* @param array $terms An array of object terms.
* @param string $taxonomy Taxonomy slug.
* @param bool $append Whether to append new terms to the old terms.
* @return void
*/
protected function copy_object_terms( $object_id, $tr_id, $lang, $terms, $taxonomy, $append ) {
$to_copy = $this->get_taxonomies_to_copy( true, $object_id, $tr_id, $lang );
if ( in_array( $taxonomy, $to_copy ) ) {
$newterms = $this->maybe_translate_terms( $object_id, $terms, $taxonomy, $lang );
// For some reasons, the user may have untranslated terms in the translation. Don't forget them.
if ( $this->model->is_translated_taxonomy( $taxonomy ) ) {
$tr_terms = get_the_terms( $tr_id, $taxonomy );
if ( is_array( $tr_terms ) ) {
foreach ( $tr_terms as $term ) {
if ( ! $this->model->term->get_translation( $term->term_id, $this->model->post->get_language( $object_id ) ) ) {
$newterms[] = (int) $term->term_id;
}
}
}
}
wp_set_object_terms( $tr_id, $newterms, $taxonomy, $append );
}
}
/**
* When assigning terms to a post, assign translated terms to the translated posts (synchronisation).
*
* @since 2.3
*
* @param int $object_id Object ID.
* @param array $terms An array of object terms.
* @param int[] $tt_ids An array of term taxonomy IDs.
* @param string $taxonomy Taxonomy slug.
* @param bool $append Whether to append new terms to the old terms.
* @return void
*/
public function set_object_terms( $object_id, $terms, $tt_ids, $taxonomy, $append ) {
static $avoid_recursion = false;
$taxonomy_object = get_taxonomy( $taxonomy );
// Make sure that the taxonomy is registered for a post type
if ( ! $avoid_recursion && ! empty( $taxonomy_object ) && array_filter( $taxonomy_object->object_type, 'post_type_exists' ) ) {
$avoid_recursion = true;
$tr_ids = $this->model->post->get_translations( $object_id );
foreach ( $tr_ids as $lang => $tr_id ) {
if ( $tr_id !== $object_id ) {
if ( $this->model->post->current_user_can_synchronize( $object_id ) ) {
$this->copy_object_terms( $object_id, $tr_id, $lang, $terms, $taxonomy, $append );
} else {
// No permission to synchronize, so let's synchronize in reverse order
$orig_lang = array_search( $object_id, $tr_ids );
$tr_terms = get_the_terms( $tr_id, $taxonomy );
if ( false === $tr_terms ) {
$tr_terms = array();
}
if ( is_array( $tr_terms ) ) {
$tr_terms = wp_list_pluck( $tr_terms, 'term_id' );
$this->copy_object_terms( $tr_id, $object_id, $orig_lang, $tr_terms, $taxonomy, $append );
}
break;
}
}
}
$avoid_recursion = false;
}
}
/**
* Copy terms fron one post to a translation, does not sync
*
* @since 2.3
*
* @param int $from Id of the source post
* @param int $to Id of the target post
* @param string $lang Language slug
* @return void
*/
public function copy( $from, $to, $lang ) {
remove_action( 'set_object_terms', array( $this, 'set_object_terms' ), 10, 6 );
// Get taxonomies to sync for this post type
$taxonomies = array_intersect( get_post_taxonomies( $from ), $this->get_taxonomies_to_copy( false, $from, $to, $lang ) );
// Update the term cache to reduce the number of queries in the loop
update_object_term_cache( array( $from ), get_post_type( $from ) );
// Copy
foreach ( $taxonomies as $tax ) {
if ( $terms = get_the_terms( $from, $tax ) ) {
$terms = array_map( 'intval', wp_list_pluck( $terms, 'term_id' ) );
$newterms = $this->maybe_translate_terms( $from, $terms, $tax, $lang );
if ( ! empty( $newterms ) ) {
wp_set_object_terms( $to, $newterms, $tax );
}
}
}
add_action( 'set_object_terms', array( $this, 'set_object_terms' ), 10, 6 );
}
/**
* When creating a new term, associate it to posts having translations associated to the translated terms.
*
* @since 2.3
*
* @param int $term_id Id of the created term.
* @param string $taxonomy Taxonomy.
* @param int[] $translations Ids of the translations of the created term.
* @return void
*/
public function create_term( $term_id, $taxonomy, $translations ) {
if ( doing_action( 'create_term' ) && in_array( $taxonomy, $this->get_taxonomies_to_copy( true ) ) ) {
// Get all posts associated to the translated terms
$tr_posts = get_posts(
array(
'numberposts' => -1,
'nopaging' => true,
'post_type' => 'any',
'post_status' => 'any',
'fields' => 'ids',
'tax_query' => array(
array(
'taxonomy' => $taxonomy,
'field' => 'id',
'terms' => array_merge( array( $term_id ), array_values( $translations ) ),
'include_children' => false,
),
),
)
);
$lang = $this->model->term->get_language( $term_id ); // Language of the created term
$posts = array();
foreach ( $tr_posts as $post_id ) {
$post = $this->model->post->get_translation( $post_id, $lang );
if ( $post ) {
$posts[] = $post;
}
}
$posts = array_unique( $posts );
foreach ( $posts as $post_id ) {
if ( current_user_can( 'assign_term', $term_id ) ) {
wp_set_object_terms( $post_id, $term_id, $taxonomy, true );
}
}
}
}
/**
* Deactivate the synchronization of terms before deleting a term
* to avoid translated terms to be removed from translated posts
*
* @since 2.3.2
*
* @return void
*/
public function pre_delete_term() {
remove_action( 'set_object_terms', array( $this, 'set_object_terms' ), 10, 5 );
}
/**
* Re-activate the synchronization of terms after a term is deleted
*
* @since 2.3.2
*
* @return void
*/
public function delete_term() {
add_action( 'set_object_terms', array( $this, 'set_object_terms' ), 10, 5 );
}
}
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