141 lines
4.2 KiB
PHP
141 lines
4.2 KiB
PHP
<?php
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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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* 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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* Constructor: manages uninstall for multisite
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*
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* @since 0.5
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*/
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function __construct() {
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global $wpdb;
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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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}
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else {
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$this->uninstall();
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}
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}
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/**
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* Removes ALL plugin data
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* only when the relevant option is active
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*
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* @since 0.5
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*/
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function uninstall() {
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$options = get_option( 'polylang' );
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if ( empty( $options['uninstall'] ) ) {
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return;
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}
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// Suppress data of the old model < 1.2
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// FIXME: to remove when support for v1.1.6 will be dropped
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global $wpdb;
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$wpdb->termmeta = $wpdb->prefix . 'termmeta'; // registers the termmeta table in wpdb
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// Do nothing if the termmeta table does not exists
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if ( count( $wpdb->get_results( "SHOW TABLES LIKE '$wpdb->termmeta'" ) ) ) {
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$wpdb->query( "DELETE FROM $wpdb->postmeta WHERE meta_key = '_translations'" );
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$wpdb->query( "DELETE FROM $wpdb->termmeta WHERE meta_key = '_language'" );
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$wpdb->query( "DELETE FROM $wpdb->termmeta WHERE meta_key = '_rtl'" );
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$wpdb->query( "DELETE FROM $wpdb->termmeta WHERE meta_key = '_translations'" );
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}
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// Need to register the taxonomies
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$pll_taxonomies = array( 'language', 'term_language', 'post_translations', 'term_translations' );
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foreach ( $pll_taxonomies as $taxonomy ) {
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register_taxonomy( $taxonomy, null, array( 'label' => false, 'public' => false, 'query_var' => false, 'rewrite' => false ) );
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}
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$languages = get_terms( 'language', array( 'hide_empty' => false ) );
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// Delete users options
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foreach ( get_users( array( 'fields' => 'ID' ) ) as $user_id ) {
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delete_user_meta( $user_id, 'pll_filter_content' );
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delete_user_meta( $user_id, 'pll_duplicate_content' );
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foreach ( $languages as $lang ) {
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delete_user_meta( $user_id, 'description_' . $lang->slug );
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}
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}
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// Delete menu language switchers
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$ids = get_posts( 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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foreach ( $ids as $id ) {
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wp_delete_post( $id, true );
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}
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// Delete the strings translations ( <1.2 )
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// FIXME: to remove when support for v1.1.6 will be dropped
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foreach ( $languages as $lang ) {
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delete_option( 'polylang_mo' . $lang->term_id );
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}
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// Delete the strings translations 1.2+
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register_post_type( 'polylang_mo', array( 'rewrite' => false, 'query_var' => false ) );
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$ids = get_posts( 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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foreach ( $ids as $id ) {
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wp_delete_post( $id, true );
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}
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// Delete all what is related to languages and translations
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foreach ( get_terms( $pll_taxonomies, array( 'hide_empty' => false ) ) 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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if ( ! empty( $term_ids ) ) {
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$term_ids = array_unique( $term_ids );
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$wpdb->query( "DELETE FROM $wpdb->terms WHERE term_id IN ( " . implode( ',', $term_ids ) . ' )' );
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$wpdb->query( "DELETE FROM $wpdb->term_taxonomy WHERE term_id IN ( " . implode( ',', $term_ids ) . ' )' );
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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( "DELETE FROM $wpdb->term_relationships WHERE term_taxonomy_id IN ( " . implode( ',', $tt_ids ) . ' )' );
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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 transients
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delete_transient( 'pll_languages_list' );
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delete_transient( 'pll_upgrade_1_4' );
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delete_transient( 'pll_translated_slugs' );
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}
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}
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new PLL_Uninstall();
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