<?php
use Tribe__Events__Main as Main;
use TEC\Events\Custom_Tables\V1\Models\Occurrence;
/**
* Translate post ids in Event meta data.
*
* @since 4.6.21
*/
class Tribe__Events__Integrations__WPML__Meta {
/**
* @since 4.6.21
*
*/
public function hook() {
}
/**
* Translates post id in the Event meta data.
*
* @since 4.6.21
*
* @param string $value
* @param int $object_id
* @param string $meta_key
* @param bool $single
*
* @return mixed The translated id for _EventOrganizerID & _EventVenueID or false.
*/
public function translate_post_id( $value, $object_id, $meta_key, $single ) {
if ( ! empty( $_POST ) ) {
return $value;
}
if ( tribe()->getVar( 'ct1_fully_activated' ) ) {
$object_id = Occurrence::normalize_id( $object_id );
}
$accepted_values = [ '_EventOrganizerID', '_EventVenueID' ];
if ( ! in_array( $meta_key, $accepted_values ) ) {
return $value;
}
$cache = tribe_cache();
$cache_key = 'wpml_meta_translate_post_id_' . $object_id . '-' . $meta_key;
if ( isset( $cache[ $cache_key ] ) ) {
$cached = $cache[ $cache_key ];
// The cached value must be an array.
if ( is_array( $cached ) ) {
return $single ? reset( $cached ) : $cached;
}
}
$original_value = $value;
$value = $this->get_post_meta( $object_id, $meta_key );
if ( empty( $value ) ) {
/*
* Return the original value: if this method is filtering a check, the exact value, not just an empty vaulue,
* matters. If the original value is `null` and this method returns an empty string or empty array, the
* returned value will make the `get_metadata_raw` function bail out and return the incorrect value.
*/
return $original_value;
}
$type = false !== strpos( $meta_key, 'Organizer' )
? Tribe__Events__Organizer::POSTTYPE
: Tribe__Events__Venue::POSTTYPE;
foreach ( $value as & $post_id ) {
if ( is_serialized( $post_id ) ) {
$ids = (array) unserialize( $post_id );
foreach ( $ids as & $id ) {
/**
* Returns an element’s ID in the current language or in another specified language.
*
* @param int $id The ID of the post type or taxonomy term to filter
* @param string $type The type of element the ID belongs to.
* @param bool $return true If set to true it will always return a value (the original value, if translation is missing)
*/
$id = (string) apply_filters( 'wpml_object_id', $id, $type, true );
}
$post_id = $ids;
} else {
/**
* Returns an element’s ID in the current language or in another specified language.
*
* @param int $post_id The ID of the post type or taxonomy term to filter
* @param string $type The type of element the ID belongs to.
* @param bool true If set to true it will always return a value (the original value, if translation is missing)
*/
$post_id = (string) apply_filters( 'wpml_object_id', $post_id, $type, true );
}
}
$cache[ $cache_key ] = $value;
return $single ? $value[0] : $value;
}
/**
* Get meta value skipping filters (using direct DB query).
*
* @since 4.6.21
*
* @param int $post_id
* @param string $meta_key
*
* @return array
*/
private function get_post_meta( $post_id, $meta_key ) {
global $wpdb;
return $wpdb->get_col( $wpdb->prepare(
"SELECT meta_value FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = %s",
$post_id,
$meta_key
) );
}
/**
* Query all translations of organizer or venue to fetch events.
*
* @since 4.6.21
*
* @param WP_Query $query A reference to the WordPress Query object that is being filtered.
*/
public function include_all_languages( $query ) {
$meta_query = (array) $query->get( 'meta_query', [] );
if ( empty( $meta_query ) ) {
return;
}
// Pre-fill the key to post type map to avoid calling expensive functions for each element.
$keys = [
'_EventVenueID' => Main::VENUE_POST_TYPE,
'_EventOrganizerID' => Main::ORGANIZER_POST_TYPE,
];
foreach ( $keys as $meta_key => $post_type ) {
foreach ( $this->find_meta_indexes( $meta_query, $meta_key ) as $meta_index ) {
if ( ! isset( $meta_query[ $meta_index ]['value'] ) ) {
continue;
}
$translated_elements = $this->translate_elements( $post_type, $meta_query[ $meta_index ]['value'] );
if ( count( $translated_elements ) ) {
$meta_query[ $meta_index ]['value'] = $translated_elements;
}
}
$query->set( 'meta_query', $meta_query );
}
}
/**
* Translates, fetching all the available translations, one element using WPML.
*
* @since 5.8.2
*
* @param string $element_type The post element type as WPML expects it: `post_<post_type>`.
* @param int $element_id The ID of the linked post (element) to translate.
*
* @return array<int> A list of the available translation IDs for the specified linked post.
*/
private function translate_element( $element_type, $element_id ) {
/**
* Get trid (the ID of the translation group) of a translated element, which is
* required for the wpml_get_element_translations filter and others which expect this argument.
* https://wpml.org/wpml-hook/wpml_element_trid/
*
* @param mixed $empty_value This is usually the value the filter will be modifying.
* @param int $element_id The ID of the item.
* @param string $element_type The type of an element.
*/
$trid = apply_filters( 'wpml_element_trid', null, $element_id, $element_type );
/**
* Get the element translations info using trid
* https://wpml.org/wpml-hook/wpml_get_element_translations/
*
* @param mixed $empty_value This is usually the value the filter will be modifying.
* @param int $element_id The ID of the translation group
* @param string $element_type The type of an element.
*/
$translations = apply_filters( 'wpml_get_element_translations', null, $trid, $element_type );
return wp_list_pluck( $translations, 'element_id' );
}
/**
* Finds all the meta query keys matching a criteria for linked a custom post type.
*
* @since 5.8.2
*
* @param array<string,mixed> $meta_query The meta query array representation, in the format used by WordPress.
* @param string $target_key The linked post type meta key used to store, on the Event side, the
* relation between Events and the linked post type.
*
* @return array<string> A list of matching meta query array keys.
*/
private function find_meta_indexes( array $meta_query, $target_key ) {
$found_keys = [];
foreach ( $meta_query as $entry_key => $entry ) {
if ( isset( $entry['key'] ) && $entry['key'] === $target_key ) {
$found_keys[] = $entry_key;
}
}
return $found_keys;
}
/**
* Translates a set of elements IDs using WPMl.
*
* @since 5.8.2
*
* @param string $post_type The post type of the elements to translate.
* @param array<int> $elements A list of IDs of elements to translate.
*
* @return array<int> A list of translated elements, if any translation is available.
*/
private function translate_elements( $post_type, $elements ) {
$buffer = [];
$element_type = 'post_' . $post_type;
foreach ( $elements as $element_id ) {
$buffer[] = $this->translate_element( $element_type, $element_id );
}
return array_unique( array_filter( array_merge( $elements, ...$buffer ) ) );
}
/**
* Filters the meta keys tracked by the Custom Tables v1 implementation to detect a request
* to update an event to add the meta key used by WPML to indicate a post is a duplicate
* of another.
*
* @since 6.0.9
*
* @param array<string> $meta_keys The list of meta keys tracked by the Custom Tables v1 implementation.
*
* @return array<string> The list of meta keys tracked by the Custom Tables v1 implementation, including
* the one used by WPML to indicate a post is a duplicate of another.
*/
public static function filter_ct1_update_meta_keys( $meta_keys ) {
if ( ! is_array( $meta_keys ) ) {
return $meta_keys;
}
$meta_keys[] = '_icl_lang_duplicate_of';
return $meta_keys;
}
}