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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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defined( 'ABSPATH' ) || exit; |
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|
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/** |
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* Sets the taxonomies languages and translations model up. |
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* |
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* @since 1.8 |
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*/ |
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class PLL_Translated_Term extends PLL_Translated_Object implements PLL_Translatable_Object_With_Types_Interface { |
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|
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use PLL_Translatable_Object_With_Types_Trait; |
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|
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/** |
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* Taxonomy name for the languages. |
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* |
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* @var string |
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* |
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* @phpstan-var non-empty-string |
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*/ |
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protected $tax_language = 'term_language'; |
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|
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/** |
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* Object type to use when registering the taxonomy. |
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* |
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* @var string |
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* |
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* @phpstan-var non-empty-string |
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*/ |
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protected $object_type = 'term'; |
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|
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/** |
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* Identifier that must be unique for each type of content. |
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* Also used when checking capabilities. |
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* |
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* @var string |
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* |
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* @phpstan-var non-empty-string |
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*/ |
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protected $type = 'term'; |
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|
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/** |
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* Identifier for each type of content to used for cache type. |
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* |
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* @var string |
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* |
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* @phpstan-var non-empty-string |
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*/ |
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protected $cache_type = 'terms'; |
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|
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|
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/** |
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* Taxonomy name for the translation groups. |
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* |
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* @var string |
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* |
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* @phpstan-var non-empty-string |
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*/ |
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protected $tax_translations = 'term_translations'; |
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|
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/** |
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* Constructor. |
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* |
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* @since 1.8 |
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* |
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* @param PLL_Model $model Instance of `PLL_Model`. |
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*/ |
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public function __construct( PLL_Model &$model ) { |
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$this->db = array( |
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'table' => $GLOBALS['wpdb']->term_taxonomy, |
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'id_column' => 'term_id', |
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'type_column' => 'taxonomy', |
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'default_alias' => 't', |
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); |
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|
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parent::__construct( $model ); |
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|
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// Keep hooks in constructor for backward compatibility. |
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$this->init(); |
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} |
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|
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/** |
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* Adds hooks. |
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* |
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* @since 3.4 |
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* |
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* @return static |
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*/ |
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public function init() { |
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add_filter( 'get_terms', array( $this, '_prime_terms_cache' ), 10, 2 ); |
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add_action( 'clean_term_cache', array( $this, 'clean_term_cache' ) ); |
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return parent::init(); |
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} |
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|
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/** |
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* Stores the term's language into the database. |
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* |
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* @since 0.6 |
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* @since 3.4 Renamed the parameter $term_id into $id. |
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* |
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* @param int $id Term ID. |
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* @param PLL_Language|string|int $lang Language (object, slug, or term ID). |
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* @return bool True when successfully assigned. False otherwise (or if the given language is already assigned to |
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* the object). |
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*/ |
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public function set_language( $id, $lang ) { |
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if ( ! parent::set_language( $id, $lang ) ) { |
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return false; |
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} |
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|
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$id = $this->sanitize_int_id( $id ); |
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|
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// Add translation group for correct WXR export. |
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$translations = $this->get_translations( $id ); |
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|
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if ( ! empty( $translations ) ) { |
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$translations = array_diff( $translations, array( $id ) ); |
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} |
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|
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$this->save_translations( $id, $translations ); |
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|
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return true; |
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} |
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|
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/** |
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* Returns the language of a term. |
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* |
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* @since 0.1 |
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* @since 3.4 Renamed the parameter $value into $id. |
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* @since 3.4 Deprecated to retrieve the language by term slug + taxonomy anymore. |
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* |
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* @param int $id Term ID. |
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* @return PLL_Language|false A `PLL_Language` object. `false` if no language is associated to that term or if the |
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* ID is invalid. |
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*/ |
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public function get_language( $id ) { |
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if ( func_num_args() > 1 ) { |
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// Backward compatibility. |
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_deprecated_argument( __METHOD__ . '()', '3.4' ); |
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|
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$term = get_term_by( 'slug', $id, func_get_arg( 1 ) ); // @phpstan-ignore-line |
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$id = $term instanceof WP_Term ? $term->term_id : 0; |
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} |
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|
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return parent::get_language( $id ); |
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} |
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|
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/** |
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* Deletes a translation of a term. |
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* |
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* @since 0.5 |
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* |
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* @param int $id Term ID. |
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* @return void |
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*/ |
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public function delete_translation( $id ) { |
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global $wpdb; |
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|
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$id = $this->sanitize_int_id( $id ); |
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|
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if ( empty( $id ) ) { |
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return; |
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} |
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|
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$slug = array_search( $id, $this->get_translations( $id ) ); // In case some plugin stores the same value with different key. |
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|
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parent::delete_translation( $id ); |
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wp_delete_object_term_relationships( $id, $this->tax_translations ); |
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|
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if ( doing_action( 'pre_delete_term' ) ) { |
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return; |
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} |
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|
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if ( ! $wpdb->get_var( $wpdb->prepare( "SELECT COUNT( * ) FROM $wpdb->terms WHERE term_id = %d;", $id ) ) ) { |
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return; |
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} |
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|
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// Always keep a group for terms to allow relationships remap when importing from a WXR file. |
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$group = uniqid( 'pll_' ); |
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$translations = array( $slug => $id ); |
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wp_insert_term( $group, $this->tax_translations, array( 'description' => maybe_serialize( $translations ) ) ); |
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wp_set_object_terms( $id, $group, $this->tax_translations ); |
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} |
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|
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/** |
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* Returns object types (taxonomy names) that need to be translated. |
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* The taxonomies list is cached for better performance. |
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* The method waits for 'after_setup_theme' to apply the cache to allow themes adding the filter in functions.php. |
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* |
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* @since 3.4 |
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* |
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* @param bool $filter True if we should return only valid registered object types. |
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* @return string[] Object type names for which Polylang manages languages. |
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* |
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* @phpstan-return array<non-empty-string, non-empty-string> |
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*/ |
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public function get_translated_object_types( $filter = true ) { |
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$taxonomies = $this->model->cache->get( 'taxonomies' ); |
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|
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if ( false === $taxonomies ) { |
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$taxonomies = array( 'category' => 'category', 'post_tag' => 'post_tag' ); |
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|
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if ( ! empty( $this->model->options['taxonomies'] ) && is_array( $this->model->options['taxonomies'] ) ) { |
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$taxonomies = array_merge( $taxonomies, array_combine( $this->model->options['taxonomies'], $this->model->options['taxonomies'] ) ); |
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} |
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|
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/** |
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* Filters the list of taxonomies available for translation. |
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* The default are taxonomies which have the parameter ‘public’ set to true. |
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* The filter must be added soon in the WordPress loading process: |
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* in a function hooked to ‘plugins_loaded’ or directly in functions.php for themes. |
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* |
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* @since 0.8 |
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* |
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* @param string[] $taxonomies List of taxonomy names (as array keys and values). |
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* @param bool $is_settings True when displaying the list of custom taxonomies in Polylang settings. |
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*/ |
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$taxonomies = apply_filters( 'pll_get_taxonomies', $taxonomies, false ); |
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|
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if ( did_action( 'after_setup_theme' ) ) { |
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$this->model->cache->set( 'taxonomies', $taxonomies ); |
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} |
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} |
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|
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/** @var array<non-empty-string, non-empty-string> $taxonomies */ |
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return $filter ? array_intersect( $taxonomies, get_taxonomies() ) : $taxonomies; |
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} |
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|
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/** |
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* Caches the language and translations when terms are queried by get_terms(). |
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* |
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* @since 1.2 |
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* |
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* @param WP_Term[]|int[] $terms Queried terms. |
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* @param string[] $taxonomies Queried taxonomies. |
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* @return WP_Term[]|int[] Unmodified $terms. |
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* |
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* @phpstan-param array<WP_Term|positive-int> $terms |
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* @phpstan-param array<non-empty-string> $taxonomies |
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* @phpstan-return array<WP_Term|positive-int> |
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*/ |
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public function _prime_terms_cache( $terms, $taxonomies ) { |
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$ids = array(); |
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|
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if ( is_array( $terms ) && $this->model->is_translated_taxonomy( $taxonomies ) ) { |
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foreach ( $terms as $term ) { |
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$ids[] = is_object( $term ) ? $term->term_id : (int) $term; |
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} |
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} |
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|
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if ( ! empty( $ids ) ) { |
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update_object_term_cache( array_unique( $ids ), 'term' ); // Adds language and translation of terms to cache. |
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} |
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return $terms; |
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} |
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|
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/** |
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* When the term cache is cleaned, cleans the object term cache too. |
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* |
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* @since 2.0 |
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* |
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* @param int[] $ids An array of term IDs. |
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* @return void |
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* |
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* @phpstan-param array<positive-int> $ids |
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*/ |
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public function clean_term_cache( $ids ) { |
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clean_object_term_cache( $this->sanitize_int_ids_list( $ids ), 'term' ); |
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} |
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|
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/** |
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* Tells whether a translation term must be updated. |
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* |
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* @since 2.3 |
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* |
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* @param int $id Term ID. |
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* @param int[] $translations An associative array of translations with language code as key and translation ID as |
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* value. Make sure to sanitize this. |
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* @return bool |
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* |
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* @phpstan-param array<non-empty-string, positive-int> $translations |
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*/ |
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protected function should_update_translation_group( $id, $translations ) { |
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// Don't do anything if no translations have been added to the group. |
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$old_translations = $this->get_translations( $id ); |
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if ( count( $translations ) > 1 && ! empty( array_diff_assoc( $translations, $old_translations ) ) ) { |
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return true; |
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} |
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|
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// But we need a translation group for terms to allow relationships remap when importing from a WXR file |
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$term = $this->get_object_term( $id, $this->tax_translations ); |
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return empty( $term ) || ! empty( array_diff_assoc( $translations, $old_translations ) ); |
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} |
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|
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/** |
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* Assigns a language to terms in mass. |
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* |
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* @since 1.2 |
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* @since 3.4 Moved from PLL_Admin_Model class. |
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* |
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* @param int[] $ids Array of post ids or term ids. |
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* @param PLL_Language $lang Language to assign to the posts or terms. |
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* @return void |
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*/ |
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public function set_language_in_mass( $ids, $lang ) { |
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parent::set_language_in_mass( $ids, $lang ); |
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|
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$translations = array(); |
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|
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foreach ( $ids as $id ) { |
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$translations[] = array( $lang->slug => $id ); |
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} |
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|
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if ( ! empty( $translations ) ) { |
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$this->set_translation_in_mass( $translations ); |
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} |
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} |
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} |
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|
