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484 lines
15 KiB
484 lines
15 KiB
<?php
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/**
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* @package Polylang
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*/
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/**
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* Adds actions and filters related to languages when creating, updating or deleting posts.
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* Actions and filters triggered when reading posts are handled separately.
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*
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* @since 2.4
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*/
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class PLL_CRUD_Posts {
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/**
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* @var PLL_Model
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*/
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protected $model;
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/**
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* Preferred language to assign to a new post.
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*
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* @var PLL_Language|null
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*/
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protected $pref_lang;
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/**
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* Current language.
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*
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* @var PLL_Language|null
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*/
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protected $curlang;
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/**
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* Reference to the Polylang options array.
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*
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* @var array
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*/
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protected $options;
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/**
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* Constructor
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*
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* @since 2.4
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*
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* @param object $polylang The Polylang object.
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*/
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public function __construct( &$polylang ) {
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$this->options = &$polylang->options;
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$this->model = &$polylang->model;
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$this->pref_lang = &$polylang->pref_lang;
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$this->curlang = &$polylang->curlang;
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add_action( 'save_post', array( $this, 'save_post' ), 10, 2 );
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add_action( 'set_object_terms', array( $this, 'set_object_terms' ), 10, 4 );
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add_filter( 'wp_insert_post_parent', array( $this, 'wp_insert_post_parent' ), 10, 2 );
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add_action( 'before_delete_post', array( $this, 'delete_post' ) );
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add_action( 'post_updated', array( $this, 'force_tags_translation' ), 10, 3 );
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// Specific for media
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if ( $polylang->options['media_support'] ) {
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add_action( 'add_attachment', array( $this, 'set_default_language' ) );
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add_action( 'delete_attachment', array( $this, 'delete_post' ) );
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add_filter( 'wp_delete_file', array( $this, 'wp_delete_file' ) );
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}
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}
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/**
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* Allows to set a language by default for posts if it has no language yet.
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*
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* @since 1.5
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*
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* @param int $post_id Post ID.
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* @return void
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*/
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public function set_default_language( $post_id ) {
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if ( ! $this->model->post->get_language( $post_id ) ) {
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if ( ! empty( $_GET['new_lang'] ) && $lang = $this->model->get_language( sanitize_key( $_GET['new_lang'] ) ) ) { // phpcs:ignore WordPress.Security.NonceVerification
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// Defined only on admin.
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$this->model->post->set_language( $post_id, $lang );
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} elseif ( ! isset( $this->pref_lang ) && ! empty( $_REQUEST['lang'] ) && $lang = $this->model->get_language( sanitize_key( $_REQUEST['lang'] ) ) ) { // phpcs:ignore WordPress.Security.NonceVerification
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// Testing $this->pref_lang makes this test pass only on admin.
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$this->model->post->set_language( $post_id, $lang );
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} elseif ( ( $parent_id = wp_get_post_parent_id( $post_id ) ) && $parent_lang = $this->model->post->get_language( $parent_id ) ) {
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$this->model->post->set_language( $post_id, $parent_lang );
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} elseif ( isset( $this->pref_lang ) ) {
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// Always defined on admin, never defined on frontend.
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$this->model->post->set_language( $post_id, $this->pref_lang );
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} elseif ( ! empty( $this->curlang ) ) {
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// Only on frontend due to the previous test always true on admin.
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$this->model->post->set_language( $post_id, $this->curlang );
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} else {
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// In all other cases set to default language.
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$this->model->post->set_language( $post_id, $this->options['default_lang'] );
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}
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}
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}
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/**
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* Called when a post ( or page ) is saved, published or updated.
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*
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* @since 0.1
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* @since 2.3 Does not save the language and translations anymore, unless the post has no language yet.
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*
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* @param int $post_id Post id of the post being saved.
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* @param WP_Post $post The post being saved.
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* @return void
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*/
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public function save_post( $post_id, $post ) {
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// Does nothing except on post types which are filterable.
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if ( $this->model->is_translated_post_type( $post->post_type ) ) {
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if ( $id = wp_is_post_revision( $post_id ) ) {
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$post_id = $id;
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}
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$lang = $this->model->post->get_language( $post_id );
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if ( empty( $lang ) ) {
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$this->set_default_language( $post_id );
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}
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/**
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* Fires after the post language and translations are saved.
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*
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* @since 1.2
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*
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* @param int $post_id Post id.
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* @param WP_Post $post Post object.
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* @param int[] $translations The list of translations post ids.
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*/
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do_action( 'pll_save_post', $post_id, $post, $this->model->post->get_translations( $post_id ) );
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}
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}
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/**
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* Makes sure that saved terms are in the right language.
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*
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* @since 2.3
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*
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* @param int $object_id Object ID.
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* @param int[]|string[] $terms An array of object term IDs or slugs.
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* @param int[] $tt_ids An array of term taxonomy IDs.
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* @param string $taxonomy Taxonomy slug.
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* @return void
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*/
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public function set_object_terms( $object_id, $terms, $tt_ids, $taxonomy ) {
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static $avoid_recursion;
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if ( $avoid_recursion || empty( $terms ) || ! is_array( $terms ) || ! $this->model->is_translated_taxonomy( $taxonomy ) ) {
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return;
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}
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$lang = $this->model->post->get_language( $object_id );
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if ( empty( $lang ) ) {
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return;
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}
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// Use the term_taxonomy_ids to get all the requested terms in 1 query.
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$new_terms = get_terms(
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array(
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'taxonomy' => $taxonomy,
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'term_taxonomy_id' => array_map( 'intval', $tt_ids ),
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'lang' => '',
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)
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);
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if ( empty( $new_terms ) || ! is_array( $new_terms ) ) {
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// Terms not found.
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return;
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}
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$new_term_ids_translated = $this->translate_terms( $new_terms, $taxonomy, $lang );
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// Query the object's term.
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$orig_terms = get_terms(
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array(
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'taxonomy' => $taxonomy,
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'object_ids' => $object_id,
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'lang' => '',
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)
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);
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if ( is_array( $orig_terms ) ) {
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$orig_term_ids = wp_list_pluck( $orig_terms, 'term_id' );
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$orig_term_ids_translated = $this->translate_terms( $orig_terms, $taxonomy, $lang );
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// Terms that are not in the translated list.
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$remove_term_ids = array_diff( $orig_term_ids, $orig_term_ids_translated );
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if ( ! empty( $remove_term_ids ) ) {
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wp_remove_object_terms( $object_id, $remove_term_ids, $taxonomy );
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}
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} else {
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$orig_term_ids = array();
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$orig_term_ids_translated = array();
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}
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// Terms to add.
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$add_term_ids = array_unique( array_merge( $orig_term_ids_translated, $new_term_ids_translated ) );
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$add_term_ids = array_diff( $add_term_ids, $orig_term_ids );
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if ( ! empty( $add_term_ids ) ) {
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$avoid_recursion = true;
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wp_set_object_terms( $object_id, $add_term_ids, $taxonomy, true ); // Append.
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$avoid_recursion = false;
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}
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}
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/**
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* Make sure that the post parent is in the correct language.
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*
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* @since 1.8
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*
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* @param int $post_parent Post parent ID.
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* @param int $post_id Post ID.
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* @return int
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*/
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public function wp_insert_post_parent( $post_parent, $post_id ) {
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$lang = $this->model->post->get_language( $post_id );
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$parent_post_type = $post_parent > 0 ? get_post_type( $post_parent ) : null;
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// Dont break the hierarchy in case the post has no language
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if ( ! empty( $lang ) && ! empty( $parent_post_type ) && $this->model->is_translated_post_type( $parent_post_type ) ) {
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$post_parent = $this->model->post->get_translation( $post_parent, $lang );
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}
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return $post_parent;
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}
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/**
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* Called when a post, page or media is deleted
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* Don't delete translations if this is a post revision thanks to AndyDeGroo who caught this bug
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* http://wordpress.org/support/topic/plugin-polylang-quick-edit-still-breaks-translation-linking-of-pages-in-072
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*
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* @since 0.1
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*
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* @param int $post_id Post ID.
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* @return void
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*/
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public function delete_post( $post_id ) {
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if ( ! wp_is_post_revision( $post_id ) ) {
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$this->model->post->delete_translation( $post_id );
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}
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}
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/**
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* Prevents WP deleting files when there are still media using them.
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*
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* @since 0.9
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*
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* @param string $file Path to the file to delete.
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* @return string Empty or unmodified path.
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*/
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public function wp_delete_file( $file ) {
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global $wpdb;
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$uploadpath = wp_upload_dir();
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// Get the main attached file.
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$attached_file = substr_replace( $file, '', 0, strlen( trailingslashit( $uploadpath['basedir'] ) ) );
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$attached_file = preg_replace( '#-\d+x\d+\.([a-z]+)$#', '.$1', $attached_file );
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$ids = $wpdb->get_col(
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$wpdb->prepare(
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"SELECT post_id FROM $wpdb->postmeta
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WHERE meta_key = '_wp_attached_file' AND meta_value = %s",
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$attached_file
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)
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);
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if ( ! empty( $ids ) ) {
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return ''; // Prevent deleting the file.
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}
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return $file;
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}
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/**
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* Creates a media translation
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*
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* @since 1.8
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*
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* @param int $post_id Original attachment id.
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* @param string|object $lang New translation language.
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* @return int Attachment id of the translated media.
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*/
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public function create_media_translation( $post_id, $lang ) {
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if ( empty( $post_id ) ) {
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return 0;
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}
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$post = get_post( $post_id, ARRAY_A );
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if ( empty( $post ) ) {
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return 0;
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}
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$lang = $this->model->get_language( $lang ); // Make sure we get a valid language slug.
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if ( empty( $lang ) ) {
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return 0;
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}
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// Create a new attachment ( translate attachment parent if exists ).
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add_filter( 'pll_enable_duplicate_media', '__return_false', 99 ); // Avoid a conflict with automatic duplicate at upload.
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unset( $post['ID'] ); // Will force the creation.
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if ( ! empty( $post['post_parent'] ) ) {
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$post['post_parent'] = (int) $this->model->post->get_translation( $post['post_parent'], $lang->slug );
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}
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$post['tax_input'] = array( 'language' => array( $lang->slug ) ); // Assigns the language.
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$tr_id = wp_insert_attachment( wp_slash( $post ) );
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remove_filter( 'pll_enable_duplicate_media', '__return_false', 99 ); // Restore automatic duplicate at upload.
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// Copy metadata.
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$data = wp_get_attachment_metadata( $post_id, true ); // Unfiltered.
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if ( is_array( $data ) ) {
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wp_update_attachment_metadata( $tr_id, wp_slash( $data ) ); // Directly uses update_post_meta, so expects slashed.
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}
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// Copy attached file.
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if ( $file = get_attached_file( $post_id, true ) ) { // Unfiltered.
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update_attached_file( $tr_id, wp_slash( $file ) ); // Directly uses update_post_meta, so expects slashed.
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}
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// Copy alternative text. Direct use of the meta as there is no filtered wrapper to manipulate it.
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if ( $text = get_post_meta( $post_id, '_wp_attachment_image_alt', true ) ) {
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add_post_meta( $tr_id, '_wp_attachment_image_alt', wp_slash( $text ) );
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}
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$this->model->post->set_language( $tr_id, $lang );
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$translations = $this->model->post->get_translations( $post_id );
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$translations[ $lang->slug ] = $tr_id;
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$this->model->post->save_translations( $tr_id, $translations );
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/**
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* Fires after a media translation is created
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*
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* @since 1.6.4
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*
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* @param int $post_id Post id of the source media.
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* @param int $tr_id Post id of the new media translation.
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* @param string $slug Language code of the new translation.
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*/
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do_action( 'pll_translate_media', $post_id, $tr_id, $lang->slug );
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return $tr_id;
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}
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/**
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* Ensure that tags are in the correct language when a post is updated, due to `tags_input` parameter being removed in `wp_update_post()`.
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*
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* @since 3.4.5
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*
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* @param int $post_id Post ID, unused.
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* @param WP_Post $post_after Post object following the update.
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* @param WP_Post $post_before Post object before the update.
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* @return void
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*/
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public function force_tags_translation( $post_id, $post_after, $post_before ) {
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if ( ! is_object_in_taxonomy( $post_before->post_type, 'post_tag' ) ) {
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return;
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}
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$terms = get_the_terms( $post_before, 'post_tag' );
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if ( empty( $terms ) || ! is_array( $terms ) ) {
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return;
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}
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$term_ids = wp_list_pluck( $terms, 'term_id' );
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// Let's ensure that `PLL_CRUD_Posts::set_object_terms()` will do its job.
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wp_set_post_terms( $post_id, $term_ids, 'post_tag' );
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}
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/**
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* Makes sure that all terms in the given list are in the given language.
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* If not the case, the terms are translated or created (for a hierarchical taxonomy, terms are created recursively).
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*
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* @since 3.5
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*
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* @param WP_Term[] $terms List of terms to translate.
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* @param string $taxonomy The terms' taxonomy.
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* @param PLL_Language $language The language to translate the terms into.
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* @return int[] List of `term_id`s.
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*
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* @phpstan-return array<positive-int>
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*/
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private function translate_terms( array $terms, string $taxonomy, PLL_Language $language ): array {
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$term_ids_translated = array();
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foreach ( $terms as $term ) {
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$term_ids_translated[] = $this->translate_term( $term, $taxonomy, $language );
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}
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return array_filter( $term_ids_translated );
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}
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/**
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* Translates the given term into the given language.
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* If the translation doesn't exist, it is created (for a hierarchical taxonomy, terms are created recursively).
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*
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* @since 3.5
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*
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* @param WP_Term $term The term to translate.
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* @param string $taxonomy The term's taxonomy.
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* @param PLL_Language $language The language to translate the term into.
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* @return int A `term_id` on success, `0` on failure.
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*
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* @phpstan-return int<0, max>
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*/
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private function translate_term( WP_Term $term, string $taxonomy, PLL_Language $language ): int {
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// Check if the term is in the correct language or if a translation exists.
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$tr_term_id = $this->model->term->get( $term->term_id, $language );
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if ( ! empty( $tr_term_id ) ) {
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// Already in the correct language.
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return $tr_term_id;
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}
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// Or choose the correct language for tags (initially defined by name).
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$tr_term_id = $this->model->term_exists( $term->name, $taxonomy, $term->parent, $language );
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if ( ! empty( $tr_term_id ) ) {
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return $tr_term_id;
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}
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// Or create the term in the correct language.
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$tr_parent_term_id = 0;
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if ( $term->parent > 0 && is_taxonomy_hierarchical( $taxonomy ) ) {
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$parent = get_term( $term->parent, $taxonomy );
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if ( $parent instanceof WP_Term ) {
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// Translate the parent recursively.
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$tr_parent_term_id = $this->translate_term( $parent, $taxonomy, $language );
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}
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}
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$lang_callback = function ( $lang, $tax, $slug ) use ( $language, $term, $taxonomy ) {
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if ( ! $lang instanceof PLL_Language && $tax === $taxonomy && $slug === $term->slug ) {
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return $language;
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}
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return $lang;
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};
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$parent_callback = function ( $parent_id, $tax, $slug ) use ( $tr_parent_term_id, $term, $taxonomy ) {
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if ( empty( $parent_id ) && $tax === $taxonomy && $slug === $term->slug ) {
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return $tr_parent_term_id;
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}
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return $parent_id;
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};
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add_filter( 'pll_inserted_term_language', $lang_callback, 10, 3 );
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add_filter( 'pll_inserted_term_parent', $parent_callback, 10, 3 );
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$new_term_info = wp_insert_term(
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$term->name,
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$taxonomy,
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array(
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'parent' => $tr_parent_term_id,
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'slug' => $term->slug, // Useless but prevents the use of `sanitize_title()` and for consistency with `$lang_callback`.
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)
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);
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remove_filter( 'pll_inserted_term_language', $lang_callback );
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remove_filter( 'pll_inserted_term_parent', $parent_callback );
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if ( is_wp_error( $new_term_info ) ) {
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// Term creation failed.
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return 0;
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}
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$tr_term_id = max( 0, (int) $new_term_info['term_id'] );
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if ( empty( $tr_term_id ) ) {
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return 0;
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}
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$this->model->term->set_language( $tr_term_id, $language );
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$trs = $this->model->term->get_translations( $term->term_id );
|
|
|
|
$trs[ $language->slug ] = $tr_term_id;
|
|
|
|
$this->model->term->save_translations( $term->term_id, $trs );
|
|
|
|
return $tr_term_id;
|
|
}
|
|
}
|
|
|