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<?php |
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|
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class Polylang_Uninstall { |
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|
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function __construct() { |
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global $wpdb; |
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|
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// check if it is a multisite uninstall - if so, run the uninstall function for each blog id |
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if (is_multisite()) { |
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foreach ($wpdb->get_col($wpdb->prepare("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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// removes ALL plugin data (languages, translation, and the termmeta table if empty |
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function uninstall() { |
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global $wpdb; |
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$wpdb->termmeta = $wpdb->prefix . 'termmeta'; // registers the termmeta table in wpdb |
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|
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// need to register the language taxonomy |
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register_taxonomy('language', apply_filters('pll_get_post_types', get_post_types(array('show_ui' => true))), array('label' => false, 'query_var'=>'lang')); |
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|
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$languages = get_terms('language', array('hide_empty'=>false)); |
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|
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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, 'user_lang'); |
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delete_user_meta($user_id, 'pll_filter_content'); |
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foreach ($languages as $lang) |
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delete_user_meta($user_id, 'description_'.$lang->slug); |
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} |
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|
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// delete posts translations |
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$ids = get_posts(array('numberposts'=> -1, 'fields' => 'ids', 'meta_key'=>'_translations', 'post_type'=>'any', 'post_status'=>'any')); |
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foreach ($ids as $id) |
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delete_post_meta($id, '_translations'); |
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|
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// delete terms translations |
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$ids = get_terms(apply_filters('pll_get_taxonomies', get_taxonomies(array('show_ui'=>true))), array('get'=>'all', 'fields'=>'ids')); |
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foreach ($ids as $id) { |
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delete_metadata('term', $id, '_translations'); |
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delete_metadata('term', $id, '_language'); |
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} |
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|
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foreach ($languages as $lang) { |
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delete_metadata('term', $lang->term_id, '_rtl'); // delete rtl meta |
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delete_option('polylang_mo'.$lang->term_id); // delete the string translations |
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wp_delete_term($lang->term_id, 'language'); // finally delete languages |
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} |
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|
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// delete the termmeta table only if it is empty as other plugins may use it |
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$table = $wpdb->termmeta; |
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$count = $wpdb->get_var("SELECT COUNT(*) FROM $table;"); |
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if (!$count) { |
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$wpdb->query($wpdb->prepare("DROP TABLE $table;")); |
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unset($wpdb->termmeta); |
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} |
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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('polylang_nav_menus'); |
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delete_option('polylang_widgets'); |
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delete_option('widget_polylang'); // automatically created by WP |
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} |
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} |
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|
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if (class_exists("Polylang_Uninstall")) |
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new Polylang_Uninstall(); |
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|
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?> |
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|
