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644 lines
22 KiB
PHP
644 lines
22 KiB
PHP
<?php
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/**
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* Setups the language and translations model based on WordPress taxonomies
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*
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* @since 1.2
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*/
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class PLL_Model {
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public $cache; // Our internal non persistent cache object
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public $options;
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public $post, $term; // Translated objects models
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/**
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* Constructor
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* setups translated objects sub models
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* setups filters and actions
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*
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* @since 1.2
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*
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* @param array $options Polylang options
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*/
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public function __construct( &$options ) {
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$this->options = &$options;
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$this->cache = new PLL_Cache();
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$this->post = new PLL_Translated_Post( $this ); // translated post sub model
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$this->term = new PLL_Translated_Term( $this ); // translated term sub model
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// We need to clean languages cache when editing a language and when modifying the permalink structure
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add_action( 'edited_term_taxonomy', array( $this, 'clean_languages_cache' ), 10, 2 );
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add_action( 'update_option_permalink_structure', array( $this, 'clean_languages_cache' ) );
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add_action( 'update_option_siteurl', array( $this, 'clean_languages_cache' ) );
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add_action( 'update_option_home', array( $this, 'clean_languages_cache' ) );
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add_filter( 'get_terms_args', array( $this, 'get_terms_args' ) );
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// Just in case someone would like to display the language description ;- )
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add_filter( 'language_description', '__return_empty_string' );
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}
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/**
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* Returns the list of available languages
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* caches the list in a db transient ( except flags ), unless PLL_CACHE_LANGUAGES is set to false
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* caches the list ( with flags ) in the private property $languages
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*
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* List of parameters accepted in $args:
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*
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* hide_empty => hides languages with no posts if set to true ( defaults to false )
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* fields => return only that field if set ( see PLL_Language for a list of fields )
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*
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* @since 0.1
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*
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* @param array $args
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* @return array|string|int list of PLL_Language objects or PLL_Language object properties
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*/
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public function get_languages_list( $args = array() ) {
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if ( false === $languages = $this->cache->get( 'languages' ) ) {
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// Create the languages from taxonomies
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if ( ( defined( 'PLL_CACHE_LANGUAGES' ) && ! PLL_CACHE_LANGUAGES ) || false === ( $languages = get_transient( 'pll_languages_list' ) ) ) {
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$languages = get_terms( 'language', array( 'hide_empty' => false, 'orderby' => 'term_group' ) );
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$languages = empty( $languages ) || is_wp_error( $languages ) ? array() : $languages;
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$term_languages = get_terms( 'term_language', array( 'hide_empty' => false ) );
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$term_languages = empty( $term_languages ) || is_wp_error( $term_languages ) ?
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array() : array_combine( wp_list_pluck( $term_languages, 'slug' ), $term_languages );
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if ( ! empty( $languages ) && ! empty( $term_languages ) ) {
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// Don't use array_map + create_function to instantiate an autoloaded class as it breaks badly in old versions of PHP
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foreach ( $languages as $k => $v ) {
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$languages[ $k ] = new PLL_Language( $v, $term_languages[ 'pll_' . $v->slug ] );
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}
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// We will need the languages list to allow its access in the filter below
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$this->cache->set( 'languages', $languages );
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/**
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* Filter the list of languages *before* it is stored in the persistent cache
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* /!\ this filter is fired *before* the $polylang object is available
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*
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* @since 1.7.5
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*
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* @param array $languages the list of language objects
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* @param object $model PLL_Model object
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*/
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$languages = apply_filters( 'pll_languages_list', $languages, $this );
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// Don't store directly objects as it badly break with some hosts ( GoDaddy ) due to race conditions when using object cache
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// Thanks to captin411 for catching this!
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// See https://wordpress.org/support/topic/fatal-error-pll_model_languages_list?replies=8#post-6782255;
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set_transient( 'pll_languages_list', array_map( 'get_object_vars', $languages ) );
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}
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else {
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$languages = array(); // In case something went wrong
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}
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}
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// Create the languages directly from arrays stored in transients
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else {
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foreach ( $languages as $k => $v ) {
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$languages[ $k ] = new PLL_Language( $v );
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}
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}
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// Custom flags
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if ( ! PLL_ADMIN ) {
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foreach ( $languages as $language ) {
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$language->set_custom_flag();
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}
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}
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/**
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* Filter the list of languages *after* it is stored in the persistent cache
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* /!\ this filter is fired *before* the $polylang object is available
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*
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* @since 1.8
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*
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* @param array $languages the list of language objects
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*/
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$languages = apply_filters( 'pll_after_languages_cache', $languages );
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$this->cache->set( 'languages', $languages );
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}
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$args = wp_parse_args( $args, array( 'hide_empty' => false ) );
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// Remove empty languages if requested
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if ( $args['hide_empty'] ) {
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$languages = wp_list_filter( $languages, array( 'count' => 0 ), 'NOT' );
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}
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return empty( $args['fields'] ) ? $languages : wp_list_pluck( $languages, $args['fields'] );
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}
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/**
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* Cleans language cache
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* can be called directly with no parameter
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* called by the 'edited_term_taxonomy' filter with 2 parameters when count needs to be updated
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*
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* @since 1.2
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*
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* @param int $term not used
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* @param string $taxonomy taxonomy name
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*/
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public function clean_languages_cache( $term = 0, $taxonomy = null ) {
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if ( empty( $taxonomy ) || 'language' == $taxonomy ) {
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delete_transient( 'pll_languages_list' );
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$this->cache->clean();
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}
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}
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/**
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* Don't query term metas when only our taxonomies are queried
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*
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* @since 2.3
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*
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* @param array $args WP_Term_Query arguments
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* @return array
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*/
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public function get_terms_args( $args ) {
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if ( isset( $args['taxonomy'] ) && ! array_diff( (array) $args['taxonomy'], array( 'language', 'term_language', 'post_translations', 'term_translations' ) ) ) {
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$args['update_term_meta_cache'] = false;
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}
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return $args;
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}
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/**
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* Returns the language by its term_id, tl_term_id, slug or locale
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*
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* @since 0.1
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*
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* @param int|string $value term_id, tl_term_id, slug or locale of the queried language
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* @return object|bool PLL_Language object, false if no language found
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*/
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public function get_language( $value ) {
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if ( is_object( $value ) ) {
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return $value instanceof PLL_Language ? $value : $this->get_language( $value->term_id ); // will force cast to PLL_Language
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}
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if ( false === $return = $this->cache->get( 'language:' . $value ) ) {
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foreach ( $this->get_languages_list() as $lang ) {
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$this->cache->set( 'language:' . $lang->term_id, $lang );
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$this->cache->set( 'language:' . $lang->tl_term_id, $lang );
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$this->cache->set( 'language:' . $lang->slug, $lang );
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$this->cache->set( 'language:' . $lang->locale, $lang );
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$this->cache->set( 'language:' . $lang->w3c, $lang );
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}
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$return = $this->cache->get( 'language:' . $value );
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}
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return $return;
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}
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/**
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* Adds terms clauses to get_terms to filter them by languages - used in both frontend and admin
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*
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* @since 1.2
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*
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* @param array $clauses the list of sql clauses in terms query
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* @param object $lang PLL_Language object
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* @return array modified list of clauses
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*/
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public function terms_clauses( $clauses, $lang ) {
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if ( ! empty( $lang ) && false === strpos( $clauses['join'], 'pll_tr' ) ) {
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$clauses['join'] .= $this->term->join_clause();
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$clauses['where'] .= $this->term->where_clause( $lang );
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}
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return $clauses;
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}
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/**
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* Returns post types that need to be translated
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* the post types list is cached for better better performance
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* wait 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 1.2
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*
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* @param bool $filter true if we should return only valid registered post types
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* @return array post type names for which Polylang manages languages and translations
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*/
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public function get_translated_post_types( $filter = true ) {
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if ( false === $post_types = $this->cache->get( 'post_types' ) ) {
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$post_types = array( 'post' => 'post', 'page' => 'page', 'wp_block' => 'wp_block' );
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if ( ! empty( $this->options['media_support'] ) ) {
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$post_types['attachment'] = 'attachment';
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}
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if ( ! empty( $this->options['post_types'] ) && is_array( $this->options['post_types'] ) ) {
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$post_types = array_merge( $post_types, array_combine( $this->options['post_types'], $this->options['post_types'] ) );
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}
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/**
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* Filter the list of post types available for translation.
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* The default are post types 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 array $post_types list of post type names
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* @param bool $is_settings true when displaying the list of custom post types in Polylang settings
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*/
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$post_types = apply_filters( 'pll_get_post_types', $post_types, false );
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if ( did_action( 'after_setup_theme' ) ) {
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$this->cache->set( 'post_types', $post_types );
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}
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}
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return $filter ? array_intersect( $post_types, get_post_types() ) : $post_types;
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}
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/**
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* Returns true if Polylang manages languages and translations for this post type
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*
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* @since 1.2
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*
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* @param string|array $post_type post type name or array of post type names
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* @return bool
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*/
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public function is_translated_post_type( $post_type ) {
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$post_types = $this->get_translated_post_types( false );
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return ( is_array( $post_type ) && array_intersect( $post_type, $post_types ) || in_array( $post_type, $post_types ) || 'any' === $post_type && ! empty( $post_types ) );
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}
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/**
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* Return taxonomies that need to be translated
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*
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* @since 1.2
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*
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* @param bool $filter true if we should return only valid registered taxonomies
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* @return array array of registered taxonomy names for which Polylang manages languages and translations
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*/
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public function get_translated_taxonomies( $filter = true ) {
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if ( false === $taxonomies = $this->cache->get( 'taxonomies' ) ) {
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$taxonomies = array( 'category' => 'category', 'post_tag' => 'post_tag' );
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if ( ! empty( $this->options['taxonomies'] ) && is_array( $this->options['taxonomies'] ) ) {
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$taxonomies = array_merge( $taxonomies, array_combine( $this->options['taxonomies'], $this->options['taxonomies'] ) );
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}
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/**
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* Filter 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 array $taxonomies list of taxonomy names
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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', $taxonomies, false );
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if ( did_action( 'after_setup_theme' ) ) {
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$this->cache->set( 'taxonomies', $taxonomies );
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}
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}
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return $filter ? array_intersect( $taxonomies, get_taxonomies() ) : $taxonomies;
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}
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/**
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* Returns true if Polylang manages languages and translations for this taxonomy
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*
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* @since 1.2
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*
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* @param string|array $tax taxonomy name or array of taxonomy names
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* @return bool
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*/
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public function is_translated_taxonomy( $tax ) {
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$taxonomies = $this->get_translated_taxonomies( false );
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return ( is_array( $tax ) && array_intersect( $tax, $taxonomies ) || in_array( $tax, $taxonomies ) );
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}
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/**
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* Return taxonomies that need to be filtered ( post_format like )
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*
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* @since 1.7
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*
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* @param bool $filter true if we should return only valid registered taxonomies
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* @return array array of registered taxonomy names
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*/
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public function get_filtered_taxonomies( $filter = true ) {
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if ( did_action( 'after_setup_theme' ) ) {
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static $taxonomies = null;
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}
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if ( empty( $taxonomies ) ) {
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$taxonomies = array( 'post_format' => 'post_format' );
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/**
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* Filter the list of taxonomies not translatable but filtered by language.
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* Includes only the post format by default
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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 1.7
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*
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* @param array $taxonomies list of taxonomy names
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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_filtered_taxonomies', $taxonomies, false );
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}
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return $filter ? array_intersect( $taxonomies, get_taxonomies() ) : $taxonomies;
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}
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/**
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* Returns true if Polylang filters this taxonomy per language
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*
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* @since 1.7
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*
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* @param string|array $tax taxonomy name or array of taxonomy names
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* @return bool
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*/
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public function is_filtered_taxonomy( $tax ) {
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$taxonomies = $this->get_filtered_taxonomies( false );
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return ( is_array( $tax ) && array_intersect( $tax, $taxonomies ) || in_array( $tax, $taxonomies ) );
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}
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/**
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* Returns the query vars of all filtered taxonomies
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*
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* @since 1.7
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*
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* @return array
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*/
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public function get_filtered_taxonomies_query_vars() {
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$query_vars = array();
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foreach ( $this->get_filtered_taxonomies() as $filtered_tax ) {
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$tax = get_taxonomy( $filtered_tax );
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$query_vars[] = $tax->query_var;
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}
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return $query_vars;
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}
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/**
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* Create a default category for a language
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*
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* @since 1.2
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*
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* @param object|string|int $lang language
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*/
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public function create_default_category( $lang ) {
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$lang = $this->get_language( $lang );
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// create a new category
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// FIXME this is translated in admin language when we would like it in $lang
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$cat_name = __( 'Uncategorized', 'polylang' );
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$cat_slug = sanitize_title( $cat_name . '-' . $lang->slug );
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$cat = wp_insert_term( $cat_name, 'category', array( 'slug' => $cat_slug ) );
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// check that the category was not previously created ( in case the language was deleted and recreated )
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$cat = isset( $cat->error_data['term_exists'] ) ? $cat->error_data['term_exists'] : $cat['term_id'];
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// set language
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$this->term->set_language( (int) $cat, $lang );
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// this is a translation of the default category
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$default = (int) get_option( 'default_category' );
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$translations = $this->term->get_translations( $default );
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if ( empty( $translations ) ) {
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if ( $lg = $this->term->get_language( $default ) ) {
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$translations[ $lg->slug ] = $default;
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}
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else {
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$translations = array();
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}
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}
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$this->term->save_translations( (int) $cat, $translations );
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}
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/**
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* It is possible to have several terms with the same name in the same taxonomy ( one per language )
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* but the native term_exists will return true even if only one exists
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* so here the function adds the language parameter
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*
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* @since 1.4
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*
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* @param string $term_name the term name
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* @param string $taxonomy taxonomy name
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* @param int $parent parent term id
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* @param string|object $language the language slug or object
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* @return null|int the term_id of the found term
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*/
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public function term_exists( $term_name, $taxonomy, $parent, $language ) {
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global $wpdb;
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$term_name = trim( wp_unslash( $term_name ) );
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$term_name = _wp_specialchars( $term_name );
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$select = "SELECT t.term_id FROM $wpdb->terms AS t";
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$join = " INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id";
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$join .= $this->term->join_clause();
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$where = $wpdb->prepare( ' WHERE tt.taxonomy = %s AND t.name = %s', $taxonomy, $term_name );
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$where .= $this->term->where_clause( $this->get_language( $language ) );
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if ( $parent > 0 ) {
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$where .= $wpdb->prepare( ' AND tt.parent = %d', $parent );
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}
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// PHPCS:ignore WordPress.DB.PreparedSQL.NotPrepared
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return $wpdb->get_var( $select . $join . $where );
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}
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/**
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* Gets the number of posts per language in a date, author or post type archive.
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*
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* @since 1.2
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*
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* @param object $lang PLL_Language instance.
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* @param array $q WP_Query arguments ( accepted: post_type, m, year, monthnum, day, author, author_name, post_format, post_status ).
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* @return int
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*/
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public function count_posts( $lang, $q = array() ) {
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global $wpdb;
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$q = wp_parse_args( $q, array( 'post_type' => 'post', 'post_status' => 'publish' ) );
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if ( ! is_array( $q['post_type'] ) ) {
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$q['post_type'] = array( $q['post_type'] );
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}
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|
||
foreach ( $q['post_type'] as $key => $type ) {
|
||
if ( ! post_type_exists( $type ) ) {
|
||
unset( $q['post_type'][ $key ] );
|
||
}
|
||
}
|
||
|
||
if ( empty( $q['post_type'] ) ) {
|
||
$q['post_type'] = array( 'post' ); // We *need* a post type.
|
||
}
|
||
|
||
$cache_key = 'pll_count_posts_' . md5( maybe_serialize( $q ) );
|
||
$counts = wp_cache_get( $cache_key, 'counts' );
|
||
|
||
if ( false === $counts ) {
|
||
$select = "SELECT pll_tr.term_taxonomy_id, COUNT( * ) AS num_posts FROM {$wpdb->posts}";
|
||
$join = $this->post->join_clause();
|
||
$where = sprintf( " WHERE post_status = '%s'", esc_sql( $q['post_status'] ) );
|
||
$where .= sprintf( " AND {$wpdb->posts}.post_type IN ( '%s' )", join( "', '", esc_sql( $q['post_type'] ) ) );
|
||
$where .= $this->post->where_clause( $this->get_languages_list() );
|
||
$groupby = ' GROUP BY pll_tr.term_taxonomy_id';
|
||
|
||
if ( ! empty( $q['m'] ) ) {
|
||
$q['m'] = '' . preg_replace( '|[^0-9]|', '', $q['m'] );
|
||
$where .= $wpdb->prepare( " AND YEAR( {$wpdb->posts}.post_date ) = %d", substr( $q['m'], 0, 4 ) );
|
||
if ( strlen( $q['m'] ) > 5 ) {
|
||
$where .= $wpdb->prepare( " AND MONTH( {$wpdb->posts}.post_date ) = %d", substr( $q['m'], 4, 2 ) );
|
||
}
|
||
if ( strlen( $q['m'] ) > 7 ) {
|
||
$where .= $wpdb->prepare( " AND DAYOFMONTH( {$wpdb->posts}.post_date ) = %d", substr( $q['m'], 6, 2 ) );
|
||
}
|
||
}
|
||
|
||
if ( ! empty( $q['year'] ) ) {
|
||
$where .= $wpdb->prepare( " AND YEAR( {$wpdb->posts}.post_date ) = %d", $q['year'] );
|
||
}
|
||
|
||
if ( ! empty( $q['monthnum'] ) ) {
|
||
$where .= $wpdb->prepare( " AND MONTH( {$wpdb->posts}.post_date ) = %d", $q['monthnum'] );
|
||
}
|
||
|
||
if ( ! empty( $q['day'] ) ) {
|
||
$where .= $wpdb->prepare( " AND DAYOFMONTH( {$wpdb->posts}.post_date ) = %d", $q['day'] );
|
||
}
|
||
|
||
if ( ! empty( $q['author_name'] ) ) {
|
||
$author = get_user_by( 'slug', sanitize_title_for_query( $q['author_name'] ) );
|
||
if ( $author ) {
|
||
$q['author'] = $author->ID;
|
||
}
|
||
}
|
||
|
||
if ( ! empty( $q['author'] ) ) {
|
||
$where .= $wpdb->prepare( " AND {$wpdb->posts}.post_author = %d", $q['author'] );
|
||
}
|
||
|
||
// Filtered taxonomies ( post_format ).
|
||
foreach ( $this->get_filtered_taxonomies_query_vars() as $tax_qv ) {
|
||
|
||
if ( ! empty( $q[ $tax_qv ] ) ) {
|
||
$join .= " INNER JOIN {$wpdb->term_relationships} AS tr ON tr.object_id = {$wpdb->posts}.ID";
|
||
$join .= " INNER JOIN {$wpdb->term_taxonomy} AS tt ON tt.term_taxonomy_id = tr.term_taxonomy_id";
|
||
$join .= " INNER JOIN {$wpdb->terms} AS t ON t.term_id = tt.term_id";
|
||
$where .= $wpdb->prepare( ' AND t.slug = %s', $q[ $tax_qv ] );
|
||
}
|
||
}
|
||
|
||
// PHPCS:ignore WordPress.DB.PreparedSQL.NotPrepared
|
||
$res = $wpdb->get_results( $select . $join . $where . $groupby, ARRAY_A );
|
||
foreach ( (array) $res as $row ) {
|
||
$counts[ $row['term_taxonomy_id'] ] = $row['num_posts'];
|
||
}
|
||
|
||
wp_cache_set( $cache_key, $counts, 'counts' );
|
||
}
|
||
|
||
return empty( $counts[ $lang->term_taxonomy_id ] ) ? 0 : $counts[ $lang->term_taxonomy_id ];
|
||
}
|
||
|
||
/**
|
||
* Setup the links model based on options
|
||
*
|
||
* @since 1.2
|
||
*
|
||
* @return object implementing "links_model interface"
|
||
*/
|
||
public function get_links_model() {
|
||
$c = array( 'Directory', 'Directory', 'Subdomain', 'Domain' );
|
||
$class = get_option( 'permalink_structure' ) ? 'PLL_Links_' . $c[ $this->options['force_lang'] ] : 'PLL_Links_Default';
|
||
|
||
/**
|
||
* Filter the links model class to use
|
||
* /!\ this filter is fired *before* the $polylang object is available
|
||
*
|
||
* @since 2.1.1
|
||
*
|
||
* @param string $class A class name: PLL_Links_Default, PLL_Links_Directory, PLL_Links_Subdomain, PLL_Links_Domain
|
||
*/
|
||
$class = apply_filters( 'pll_links_model', $class );
|
||
|
||
return new $class( $this );
|
||
}
|
||
|
||
/**
|
||
* Some backward compatibility with Polylang < 1.8
|
||
* allows for example to call $polylang->model->get_post_languages( $post_id ) instead of $polylang->model->post->get_language( $post_id )
|
||
* this works but should be slower than the direct call, thus an error is triggered in debug mode
|
||
*
|
||
* @since 1.8
|
||
*
|
||
* @param string $func Function name
|
||
* @param array $args Function arguments
|
||
*/
|
||
public function __call( $func, $args ) {
|
||
$f = $func;
|
||
|
||
switch ( $func ) {
|
||
case 'get_object_term':
|
||
$o = ( false === strpos( $args[1], 'term' ) ) ? 'post' : 'term';
|
||
break;
|
||
|
||
case 'save_translations':
|
||
case 'delete_translation':
|
||
case 'get_translations':
|
||
case 'get_translation':
|
||
case 'join_clause':
|
||
$o = ( 'post' == $args[0] || $this->is_translated_post_type( $args[0] ) ) ? 'post' : ( 'term' == $args[0] || $this->is_translated_taxonomy( $args[0] ) ? 'term' : false );
|
||
unset( $args[0] );
|
||
break;
|
||
|
||
case 'set_post_language':
|
||
case 'get_post_language':
|
||
case 'set_term_language':
|
||
case 'get_term_language':
|
||
case 'delete_term_language':
|
||
case 'get_post':
|
||
case 'get_term':
|
||
$str = explode( '_', $func );
|
||
$f = empty( $str[2] ) ? $str[0] : $str[0] . '_' . $str[2];
|
||
$o = $str[1];
|
||
break;
|
||
|
||
case 'where_clause':
|
||
case 'get_objects_in_language':
|
||
$o = $args[1];
|
||
unset( $args[1] );
|
||
break;
|
||
}
|
||
|
||
if ( ! empty( $o ) && is_object( $this->$o ) && method_exists( $this->$o, $f ) ) {
|
||
if ( WP_DEBUG ) {
|
||
$debug = debug_backtrace( DEBUG_BACKTRACE_IGNORE_ARGS ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions
|
||
$i = 1 + empty( $debug[1]['line'] ); // the file and line are in $debug[2] if the function was called using call_user_func
|
||
|
||
trigger_error( // phpcs:ignore WordPress.PHP.DevelopmentFunctions
|
||
sprintf(
|
||
'%1$s was called incorrectly in %4$s on line %5$s: the call to $polylang->model->%1$s() has been deprecated in Polylang 1.8, use PLL()->model->%2$s->%3$s() instead.' . "\nError handler",
|
||
esc_html( $func ),
|
||
esc_html( $o ),
|
||
esc_html( $f ),
|
||
esc_html( $debug[ $i ]['file'] ),
|
||
absint( $debug[ $i ]['line'] )
|
||
)
|
||
);
|
||
}
|
||
return call_user_func_array( array( $this->$o, $f ), $args );
|
||
}
|
||
|
||
$debug = debug_backtrace( DEBUG_BACKTRACE_IGNORE_ARGS ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions
|
||
trigger_error( // phpcs:ignore WordPress.PHP.DevelopmentFunctions
|
||
sprintf(
|
||
'Call to undefined function PLL()->model->%1$s() in %2$s on line %3$s' . "\nError handler",
|
||
esc_html( $func ),
|
||
esc_html( $debug[0]['file'] ),
|
||
absint( $debug[0]['line'] )
|
||
),
|
||
E_USER_ERROR
|
||
);
|
||
}
|
||
}
|