File "translated-post.php"
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<?php
/**
* @package Polylang
*/
use WP_Syntex\Polylang\Options\Options;
defined( 'ABSPATH' ) || exit;
/**
* Sets the posts languages and translations model up.
*
* @since 1.8
*
* @phpstan-import-type DBInfoWithType from PLL_Translatable_Object_With_Types_Interface
*/
class PLL_Translated_Post extends PLL_Translated_Object implements PLL_Translatable_Object_With_Types_Interface {
use PLL_Translatable_Object_With_Types_Trait;
/**
* Taxonomy name for the languages.
*
* @var string
*
* @phpstan-var non-empty-string
*/
protected $tax_language = 'language';
/**
* Identifier that must be unique for each type of content.
* Also used when checking capabilities.
*
* @var string
*
* @phpstan-var non-empty-string
*/
protected $type = 'post';
/**
* Identifier for each type of content to used for cache type.
*
* @var string
*
* @phpstan-var non-empty-string
*/
protected $cache_type = 'posts';
/**
* Taxonomy name for the translation groups.
*
* @var string
*
* @phpstan-var non-empty-string
*/
protected $tax_translations = 'post_translations';
/**
* Constructor.
*
* @since 1.8
*
* @param PLL_Model $model Instance of `PLL_Model`.
*/
public function __construct( PLL_Model $model ) {
parent::__construct( $model );
// Keep hooks in constructor for backward compatibility.
$this->init();
}
/**
* Registers the language taxonomy.
*
* @since 1.2
* @since 3.7 Protected and renamed from `register_taxonomy()`.
*
* @return void
*/
protected function register_language_taxonomy(): void {
register_taxonomy(
$this->tax_language,
(array) $this->get_translated_object_types(),
array(
'public' => false,
'show_ui' => false, // Hide the taxonomy on admin side, needed for WP 4.4.x.
'show_in_nav_menus' => false, // No metabox for nav menus, needed for WP 4.4.x.
'publicly_queryable' => true, // Since WP 4.5.
'query_var' => 'lang', // See `add_language_taxonomy_query_var()`.
'rewrite' => false, // Rewrite rules are added through filters when needed.
'_pll' => true, // Polylang taxonomy.
)
);
add_action( 'setup_theme', array( $this, 'add_language_taxonomy_query_var' ) );
}
/**
* Adds the language query var once the global `$wp` is available.
*
* @since 3.7
* @see WP_Taxonomy::add_rewrite_rules()
*
* @return void
*/
public function add_language_taxonomy_query_var(): void {
$GLOBALS['wp']->add_query_var( 'lang' );
}
/**
* Adds hooks.
*
* @since 3.4
*
* @return static
*/
public function init() {
// Setups post types to translate.
add_action( 'registered_post_type', array( $this, 'registered_post_type' ) );
// Forces updating posts cache.
add_action( 'pre_get_posts', array( $this, 'pre_get_posts' ) );
return parent::init();
}
/**
* Deletes a translation of a post.
*
* @since 0.5
*
* @param int $id Post ID.
* @return void
*/
public function delete_translation( $id ) {
$id = $this->sanitize_int_id( $id );
if ( empty( $id ) ) {
return;
}
parent::delete_translation( $id );
wp_set_object_terms( $id, array(), $this->tax_translations );
}
/**
* Returns object types (post types) that need to be translated.
* The post types list is cached for better performance.
* The method waits for 'after_setup_theme' to apply the cache to allow themes adding the filter in functions.php.
*
* @since 3.4
*
* @param bool $filter True if we should return only valid registered object types.
* @return string[] Object type names for which Polylang manages languages.
*
* @phpstan-return array<non-empty-string, non-empty-string>
*/
public function get_translated_object_types( $filter = true ) {
$post_types = $this->cache->get( 'post_types' );
if ( false === $post_types ) {
$post_types = array( 'post' => 'post', 'page' => 'page', 'wp_block' => 'wp_block' );
if ( ! empty( $this->options['post_types'] ) ) {
$post_types = array_merge( $post_types, array_combine( $this->options['post_types'], $this->options['post_types'] ) );
}
if ( empty( $this->options['media_support'] ) ) {
// In case the post type attachment is stored in the option.
unset( $post_types['attachment'] );
} else {
$post_types['attachment'] = 'attachment';
}
/**
* Filters the list of post types available for translation.
* The default are post types which have the parameter ‘public’ set to true.
* The filter must be added soon in the WordPress loading process:
* in a function hooked to ‘plugins_loaded’ or directly in functions.php for themes.
*
* @since 0.8
*
* @param string[] $post_types List of post type names (as array keys and values).
* @param bool $is_settings True when displaying the list of custom post types in Polylang settings.
*/
$post_types = (array) apply_filters( 'pll_get_post_types', $post_types, false );
if ( did_action( 'after_setup_theme' ) && ! doing_action( 'switch_blog' ) ) {
$this->cache->set( 'post_types', $post_types );
}
}
/** @var array<non-empty-string, non-empty-string> $post_types */
return $filter ? array_intersect( $post_types, get_post_types() ) : $post_types;
}
/**
* Returns true if Polylang manages languages for this object type.
*
* @since 3.4
*
* @param string|string[] $object_type Object type (post type) name or array of object type names.
* @return bool
*
* @phpstan-param non-empty-string|non-empty-string[] $object_type
*/
public function is_translated_object_type( $object_type ) {
$post_types = $this->get_translated_object_types( false );
return ( is_array( $object_type ) && array_intersect( $object_type, $post_types ) ) || in_array( $object_type, $post_types ) || ( 'any' === $object_type && ! empty( $post_types ) );
}
/**
* Checks if registered post type must be translated.
*
* @since 1.2
*
* @param string $post_type Post type name.
* @return void
*
* @phpstan-param non-empty-string $post_type
*/
public function registered_post_type( $post_type ) {
if ( $this->is_translated_object_type( $post_type ) ) {
register_taxonomy_for_object_type( $this->tax_language, $post_type );
register_taxonomy_for_object_type( $this->tax_translations, $post_type );
}
}
/**
* Forces calling 'update_object_term_cache' when querying posts or pages.
* This is especially useful for nav menus with a lot of pages as, without doing this,
* we would have one query per page in the menu to get the page language for the permalink.
*
* @since 1.8
*
* @param WP_Query $query Reference to the query object.
* @return void
*/
public function pre_get_posts( $query ) {
if ( ! empty( $query->query['post_type'] ) && $this->is_translated_object_type( $query->query['post_type'] ) ) {
$query->query_vars['update_post_term_cache'] = true;
}
}
/**
* Checks if the current user can read the post.
*
* @since 1.5
* @since 3.4 Renamed the parameter $post_id into $id.
*
* @param int $id Post ID
* @param string $context Optional, 'edit' or 'view'. Defaults to 'view'.
* @return bool
*
* @phpstan-param non-empty-string $context
*/
public function current_user_can_read( $id, $context = 'view' ) {
$id = $this->sanitize_int_id( $id );
if ( empty( $id ) ) {
return false;
}
$post = get_post( $id );
if ( empty( $post ) ) {
return false;
}
if ( 'inherit' === $post->post_status && $post->post_parent ) {
$post = get_post( $post->post_parent );
if ( empty( $post ) ) {
return false;
}
}
if ( 'inherit' === $post->post_status || in_array( $post->post_status, get_post_stati( array( 'public' => true ) ) ) ) {
return true;
}
// Follow WP practices, which shows links to private posts ( when readable ), but not for draft posts ( ex: get_adjacent_post_link() )
if ( in_array( $post->post_status, get_post_stati( array( 'private' => true ) ) ) ) {
if ( ! is_user_logged_in() ) {
return false;
}
$user = wp_get_current_user();
if ( (int) $user->ID === (int) $post->post_author ) {
return true;
}
$post_type_object = get_post_type_object( $post->post_type );
return ! empty( $post_type_object ) && current_user_can( $post_type_object->cap->read_private_posts );
}
// In edit context, show draft and future posts.
if ( 'edit' === $context ) {
$states = get_post_stati(
array(
'protected' => true,
'show_in_admin_all_list' => true,
)
);
if ( in_array( $post->post_status, $states ) ) {
$user = wp_get_current_user();
return is_user_logged_in() && ( current_user_can( 'edit_posts' ) || (int) $user->ID === (int) $post->post_author );
}
}
return false;
}
/**
* Creates a media translation
*
* @since 1.8
* @since 3.7 Moved from PLL_CRUD_Posts.
*
* @param int $post_id Original attachment id.
* @param string|PLL_Language $lang New translation language.
* @return int Attachment id of the translated media.
*/
public function create_media_translation( $post_id, $lang ) {
if ( empty( $post_id ) ) {
return 0;
}
$post = get_post( $post_id, ARRAY_A );
if ( empty( $post ) ) {
return 0;
}
$lang = $this->languages->get( $lang ); // Make sure we get a valid language slug.
if ( empty( $lang ) ) {
return 0;
}
// Create a new attachment ( translate attachment parent if exists ).
add_filter( 'pll_enable_duplicate_media', '__return_false', 99 ); // Avoid a conflict with automatic duplicate at upload.
unset( $post['ID'] ); // Will force the creation.
if ( ! empty( $post['post_parent'] ) ) {
$post['post_parent'] = (int) $this->get_translation( $post['post_parent'], $lang->slug );
}
$post['tax_input'] = array( 'language' => array( $lang->slug ) ); // Assigns the language.
// Loads the strings translations with the attachment's target language.
PLL()->load_strings_translations( $lang->slug );
$tr_id = wp_insert_attachment( wp_slash( $post ) );
remove_filter( 'pll_enable_duplicate_media', '__return_false', 99 ); // Restore automatic duplicate at upload.
// Copy metadata.
$data = wp_get_attachment_metadata( $post_id, true ); // Unfiltered.
if ( is_array( $data ) ) {
wp_update_attachment_metadata( $tr_id, wp_slash( $data ) ); // Directly uses update_post_meta, so expects slashed.
}
// Copy attached file.
if ( $file = get_attached_file( $post_id, true ) ) { // Unfiltered.
update_attached_file( $tr_id, wp_slash( $file ) ); // Directly uses update_post_meta, so expects slashed.
}
// Copy alternative text. Direct use of the meta as there is no filtered wrapper to manipulate it.
if ( $text = get_post_meta( $post_id, '_wp_attachment_image_alt', true ) ) {
add_post_meta( $tr_id, '_wp_attachment_image_alt', wp_slash( $text ) );
}
$this->set_language( $tr_id, $lang );
$translations = $this->get_translations( $post_id );
$translations[ $lang->slug ] = $tr_id;
$this->save_translations( $tr_id, $translations );
/**
* Fires after a media translation is created
*
* @since 1.6.4
*
* @param int $post_id Post id of the source media.
* @param int $tr_id Post id of the new media translation.
* @param string $slug Language code of the new translation.
*/
do_action( 'pll_translate_media', $post_id, $tr_id, $lang->slug );
// Restores the strings translations with the current language.
if ( PLL()->curlang instanceof PLL_Language ) {
PLL()->load_strings_translations( PLL()->curlang->slug );
}
return $tr_id;
}
/**
* Returns a list of posts in a language ($lang) not translated in another language ($untranslated_in).
*
* @since 2.6
*
* @param string $type Post type.
* @param PLL_Language $untranslated_in The language the posts must not be translated in.
* @param PLL_Language $lang Language of the searched posts.
* @param string $search Limit the results to the posts matching this string.
* @return WP_Post[] Array of posts.
*/
public function get_untranslated( $type, PLL_Language $untranslated_in, PLL_Language $lang, $search = '' ) {
global $wpdb;
$args = array( 'numberposts' => 20 ); // Limit to 20 posts by default.
/**
* Filters the query args when auto suggesting untranslated posts in the Languages metabox.
*
* @since 1.7
* @since 3.4 Handled arguments restricted to `numberposts` to limit queried posts.
* No `WP_Query` is made anymore, a custom one is used instead.
*
* @param array $args WP_Query arguments
*/
$args = apply_filters( 'pll_ajax_posts_not_translated_args', $args );
$limit = $args['numberposts'];
$search_like = '%' . $wpdb->esc_like( $search ) . '%';
$untranslated_like = '%' . $wpdb->esc_like( $untranslated_in->slug ) . '%';
$posts = $wpdb->get_results(
$wpdb->prepare(
"SELECT * FROM {$wpdb->posts}
INNER JOIN {$wpdb->term_relationships} AS tr1 ON ({$wpdb->posts}.ID = tr1.object_id)
AND tr1.term_taxonomy_id IN (%d)
AND (({$wpdb->posts}.post_title LIKE %s)
OR ({$wpdb->posts}.post_excerpt LIKE %s)
OR ({$wpdb->posts}.post_content LIKE %s)
)
AND {$wpdb->posts}.post_type = %s
AND {$wpdb->posts}.post_status NOT IN ('trash', 'auto-draft')
WHERE {$wpdb->posts}.ID NOT IN (
SELECT {$wpdb->posts}.ID FROM {$wpdb->posts}
LEFT JOIN {$wpdb->term_relationships} AS tr2 ON ({$wpdb->posts}.ID = tr2.object_id)
INNER JOIN {$wpdb->term_taxonomy} AS tt ON (tt.term_taxonomy_id = tr2.term_taxonomy_id)
AND (tt.taxonomy = 'post_translations')
AND tt.description LIKE %s
)
LIMIT 0, %d",
$lang->get_tax_prop( $this->tax_language, 'term_taxonomy_id' ),
$search_like,
$search_like,
$search_like,
$type,
$untranslated_like,
$limit
)
);
foreach ( $posts as $i => $post ) {
if ( ! $this->current_user_can_read( $post->ID, 'edit' ) ) {
unset( $posts[ $i ] );
continue;
}
$posts[ $i ] = new WP_Post( $post );
}
return $posts;
}
/**
* Returns the description to use for the "language properties" in the REST API.
*
* @since 3.7
* @see WP_Syntex\Polylang\REST\V2\Languages::get_item_schema()
*
* @return string
*/
public function get_rest_description(): string {
return __( 'Language taxonomy properties for post types.', 'polylang' );
}
/**
* Returns database-related information that can be used in some of this class methods.
* These are specific to the table containing the objects.
*
* @see PLL_Translatable_Object::join_clause()
* @see PLL_Translatable_Object::get_raw_objects_with_no_lang()
*
* @since 3.4.3
*
* @return string[] {
* @type string $table Name of the table.
* @type string $id_column Name of the column containing the object's ID.
* @type string $type_column Name of the column containing the object's type.
* @type string $default_alias Default alias corresponding to the object's table.
* }
* @phpstan-return DBInfoWithType
*/
protected function get_db_infos() {
return array(
'table' => $GLOBALS['wpdb']->posts,
'id_column' => 'ID',
'type_column' => 'post_type',
'default_alias' => $GLOBALS['wpdb']->posts,
);
}
/**
* Wraps `wp_insert_post` with language feature.
*
* @since 3.7
*
* @param array $postarr {
* Optional. An array of elements that make up a post to insert.
* @See wp_insert_post() for accepted arguments.
*
* @type string[] $translations The translation group to assign to the post with language slug as keys and post ID as values.
* }
* @param PLL_Language $language The post language object.
* @return int|WP_Error The post ID on success. The value `WP_Error` on failure.
*/
public function insert( array $postarr, PLL_Language $language ) {
$post_id = wp_insert_post( $postarr, true );
if ( is_wp_error( $post_id ) ) {
// Something went wrong!
return $post_id;
}
$this->set_language( $post_id, $language );
if ( ! empty( $postarr['translations'] ) ) {
$this->save_translations( $post_id, $postarr['translations'] );
}
return $post_id;
}
/**
* Wraps `wp_update_post` with language feature.
*
* @since 3.7
*
* @param array $postarr {
* Optional. An array of elements that make up a post to update.
* @See wp_insert_post() for accepted arguments.
*
* @type PLL_Language|string $lang The post language object or slug.
* @type string[] $translations The translation group to assign to the post with language slug as keys and post ID as values.
* }
* @return int|WP_Error The post ID on success. The value `WP_Error` on failure.
*/
public function update( array $postarr ) {
if ( ! empty( $postarr['lang'] ) ) {
$post = get_post( $postarr['ID'] );
if ( ! $post instanceof WP_Post ) {
return new WP_Error( 'invalid_post', __( 'Invalid post ID.', 'polylang' ) );
}
$language = $this->languages->get( $postarr['lang'] );
if ( ! $language instanceof PLL_Language ) {
return new WP_Error( 'invalid_language', __( 'Please provide a valid language.', 'polylang' ) );
}
$this->set_language( $postarr['ID'], $language );
}
$post_id = wp_update_post( $postarr, true );
if ( is_wp_error( $post_id ) ) {
// Something went wrong!
return $post_id;
}
if ( ! empty( $postarr['translations'] ) ) {
$this->save_translations( $postarr['ID'], $postarr['translations'] );
}
return $post_id;
}
}