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<?php |
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/** |
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* @package Polylang |
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*/ |
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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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/** |
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* Preferred language to assign to a new post. |
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* |
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* @var PLL_Language |
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*/ |
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protected $pref_lang; |
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|
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/** |
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* Current language. |
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* |
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* @var PLL_Language |
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*/ |
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protected $curlang; |
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|
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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 $polylang |
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*/ |
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public function __construct( &$polylang ) { |
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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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|
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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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|
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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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/** |
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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 |
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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, $this->pref_lang ); |
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} else { |
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// Only on frontend due to the previous test always true on admin |
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$this->model->post->set_language( $post_id, $this->curlang ); |
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} |
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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 = $id; |
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} |
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|
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$lang = $this->model->post->get_language( $post_id ); |
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|
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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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/** |
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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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/** |
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* Makes sure that saved terms are in the right language (especially tags with same name in different languages). |
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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 WP_Term[] $terms An array of object terms. |
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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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|
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if ( ! $avoid_recursion && $this->model->is_translated_taxonomy( $taxonomy ) && ! empty( $terms ) ) { |
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$lang = $this->model->post->get_language( $object_id ); |
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|
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if ( ! empty( $lang ) && is_array( $terms ) ) { |
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// Convert to term ids if we got tag names |
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$strings = array_filter( $terms, 'is_string' ); |
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if ( ! empty( $strings ) ) { |
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$_terms = get_terms( $taxonomy, array( 'name' => $strings, 'object_ids' => $object_id, 'fields' => 'ids' ) ); |
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$terms = array_merge( array_diff( $terms, $strings ), $_terms ); |
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} |
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|
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$term_ids = array_combine( $terms, $terms ); |
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$languages = array_map( array( $this->model->term, 'get_language' ), $term_ids ); |
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$languages = array_filter( $languages ); // Remove terms without language. |
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$languages = wp_list_pluck( $languages, 'slug' ); |
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$wrong_terms = array_diff( $languages, array( $lang->slug ) ); |
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|
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if ( ! empty( $wrong_terms ) ) { |
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// We got terms in a wrong language |
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$wrong_term_ids = array_keys( $wrong_terms ); |
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$terms = get_the_terms( $object_id, $taxonomy ); |
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wp_remove_object_terms( $object_id, $wrong_term_ids, $taxonomy ); |
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|
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if ( is_array( $terms ) ) { |
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$newterms = array(); |
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|
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foreach ( $terms as $term ) { |
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if ( in_array( $term->term_id, $wrong_term_ids ) ) { |
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// Check if the term is in the correct language or if a translation exist ( mainly for default category ) |
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if ( $newterm = $this->model->term->get( $term->term_id, $lang ) ) { |
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$newterms[] = (int) $newterm; |
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} |
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|
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// Or choose the correct language for tags ( initially defined by name ) |
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elseif ( $newterm = $this->model->term_exists( $term->name, $taxonomy, $term->parent, $lang ) ) { |
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$newterms[] = (int) $newterm; // Cast is important otherwise we get 'numeric' tags |
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} |
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|
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// Or create the term in the correct language |
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elseif ( ! is_wp_error( $term_info = wp_insert_term( $term->name, $taxonomy ) ) ) { |
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$newterms[] = (int) $term_info['term_id']; |
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} |
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} |
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} |
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|
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$avoid_recursion = true; |
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wp_set_object_terms( $object_id, array_unique( $newterms ), $taxonomy, true ); // Append |
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$avoid_recursion = false; |
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} |
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} |
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} |
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} |
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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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// Dont break the hierarchy in case the post has no language |
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if ( ! empty( $lang ) ) { |
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$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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/** |
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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 catched 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 |
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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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/** |
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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 $wpdb; |
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|
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$uploadpath = wp_upload_dir(); |
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|
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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', $attached_file ); |
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|
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$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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|
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if ( ! empty( $ids ) ) { |
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return ''; // Prevent deleting the file. |
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} |
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|
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return $file; |
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} |
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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( $post_id ) ) { |
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return 0; |
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} |
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|
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$post = get_post( $post_id, ARRAY_A ); |
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|
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if ( empty( $post ) ) { |
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return 0; |
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} |
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|
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$lang = $this->model->get_language( $lang ); // Make sure we get a valid language slug. |
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|
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if ( empty( $lang ) ) { |
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return 0; |
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} |
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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( $post['ID'] ); // Will force the creation. |
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$post['post_parent'] = ( $post['post_parent'] && $tr_parent = $this->model->post->get_translation( $post['post_parent'], $lang->slug ) ) ? $tr_parent : 0; |
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$post['tax_input'] = array( 'language' => array( $lang->slug ) ); // Assigns the language. |
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$tr_id = wp_insert_attachment( wp_slash( $post ) ); |
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remove_filter( 'pll_enable_duplicate_media', '__return_false', 99 ); // Restore automatic duplicate at upload. |
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|
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// Copy metadata. |
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$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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|
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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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|
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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( $text ) ); |
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} |
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|
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$this->model->post->set_language( $tr_id, $lang ); |
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|
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$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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/** |
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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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|
