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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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if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) { // If uninstall not called from WordPress exit. |
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exit; |
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} |
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|
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/** |
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* Manages Polylang uninstallation. |
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* The goal is to remove **all** Polylang related data in db. |
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* |
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* @since 0.5 |
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*/ |
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class PLL_Uninstall { |
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|
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/** |
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* Constructor: manages uninstall for multisite. |
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* |
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* @since 0.5 |
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*/ |
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public function __construct() { |
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global $wpdb; |
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|
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// Don't do anything except if the constant PLL_REMOVE_ALL_DATA is explicitly defined and true. |
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if ( ! defined( 'PLL_REMOVE_ALL_DATA' ) || ! PLL_REMOVE_ALL_DATA ) { |
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return; |
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} |
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|
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// Check if it is a multisite uninstall - if so, run the uninstall function for each blog id. |
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if ( is_multisite() ) { |
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foreach ( $wpdb->get_col( "SELECT blog_id FROM $wpdb->blogs" ) as $blog_id ) { |
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switch_to_blog( $blog_id ); |
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$this->uninstall(); |
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} |
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restore_current_blog(); |
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} else { |
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$this->uninstall(); |
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} |
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} |
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|
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/** |
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* Removes **all** plugin data. |
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* |
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* @since 0.5 |
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*/ |
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public function uninstall() { |
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global $wpdb; |
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|
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do_action( 'pll_uninstall' ); |
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|
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// We need to register the taxonomies. |
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$pll_taxonomies = array( |
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'language', |
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'term_language', |
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'post_translations', |
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'term_translations', |
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); |
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|
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foreach ( $pll_taxonomies as $taxonomy ) { |
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register_taxonomy( |
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$taxonomy, |
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null, |
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array( |
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'label' => false, |
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'public' => false, |
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'query_var' => false, |
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'rewrite' => false, |
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) |
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); |
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} |
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|
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$languages = get_terms( |
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array( |
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'taxonomy' => 'language', |
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'hide_empty' => false, |
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) |
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); |
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|
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// Delete users options. |
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delete_metadata( 'user', 0, 'pll_filter_content', '', true ); |
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delete_metadata( 'user', 0, 'pll_dismissed_notices', '', true ); // Legacy meta. |
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foreach ( $languages as $lang ) { |
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delete_metadata( 'user', 0, "description_{$lang->slug}", '', true ); |
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} |
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|
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// Delete menu language switchers. |
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$ids = get_posts( |
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array( |
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'post_type' => 'nav_menu_item', |
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'numberposts' => -1, |
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'nopaging' => true, |
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'fields' => 'ids', |
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'meta_key' => '_pll_menu_item', |
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) |
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); |
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|
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foreach ( $ids as $id ) { |
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wp_delete_post( $id, true ); |
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} |
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|
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/* |
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* Backward compatibility with Polylang < 3.4. |
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* Delete the legacy strings translations. |
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*/ |
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register_post_type( |
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'polylang_mo', |
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array( |
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'rewrite' => false, |
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'query_var' => false, |
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) |
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); |
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$ids = get_posts( |
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array( |
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'post_type' => 'polylang_mo', |
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'post_status' => 'any', |
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'numberposts' => -1, |
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'nopaging' => true, |
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'fields' => 'ids', |
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) |
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); |
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foreach ( $ids as $id ) { |
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wp_delete_post( $id, true ); |
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} |
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|
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// Delete all what is related to languages and translations. |
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$term_ids = array(); |
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$tt_ids = array(); |
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|
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$terms = get_terms( |
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array( |
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'taxonomy' => $pll_taxonomies, |
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'hide_empty' => false, |
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) |
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); |
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|
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foreach ( $terms as $term ) { |
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$term_ids[] = (int) $term->term_id; |
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$tt_ids[] = (int) $term->term_taxonomy_id; |
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} |
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|
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if ( ! empty( $term_ids ) ) { |
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$term_ids = array_unique( $term_ids ); |
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$wpdb->query( |
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$wpdb->prepare( |
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sprintf( |
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"DELETE FROM {$wpdb->terms} WHERE term_id IN (%s)", |
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implode( ',', array_fill( 0, count( $term_ids ), '%d' ) ) |
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), |
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$term_ids |
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) |
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); |
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$wpdb->query( |
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$wpdb->prepare( |
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sprintf( |
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"DELETE FROM {$wpdb->term_taxonomy} WHERE term_id IN (%s)", |
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implode( ',', array_fill( 0, count( $term_ids ), '%d' ) ) |
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), |
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$term_ids |
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) |
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); |
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$wpdb->query( |
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$wpdb->prepare( |
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sprintf( |
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"DELETE FROM {$wpdb->termmeta} WHERE term_id IN (%s) AND meta_key='_pll_strings_translations'", |
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implode( ',', array_fill( 0, count( $term_ids ), '%d' ) ) |
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), |
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$term_ids |
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) |
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); |
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} |
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|
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if ( ! empty( $tt_ids ) ) { |
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$tt_ids = array_unique( $tt_ids ); |
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$wpdb->query( $wpdb->prepare( sprintf( "DELETE FROM {$wpdb->term_relationships} WHERE term_taxonomy_id IN (%s)", implode( ',', array_fill( 0, count( $tt_ids ), '%d' ) ) ), $tt_ids ) ); |
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} |
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|
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// Delete options. |
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delete_option( 'polylang' ); |
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delete_option( 'widget_polylang' ); // Automatically created by WP. |
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delete_option( 'polylang_wpml_strings' ); // Strings registered with icl_register_string. |
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delete_option( 'polylang_licenses' ); |
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delete_option( 'pll_dismissed_notices' ); |
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delete_option( 'pll_language_from_content_available' ); |
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|
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// Delete transients. |
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delete_transient( 'pll_languages_list' ); |
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} |
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} |
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|
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new PLL_Uninstall(); |
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|
