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<?php |
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|
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global $wpdb; |
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$wpdb->termmeta = $wpdb->prefix . 'termmeta'; // registers the termmeta table in wpdb |
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register_taxonomy('language', 'post', array('label' => false, 'query_var'=>'lang')); // temporarily register the language taxonomy |
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|
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$languages = get_terms('language', array('hide_empty'=>false)); |
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|
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foreach ($languages as $lang) { |
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// delete references to this language in all posts |
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$args = array('numberposts'=> -1, 'post_type'=>'any', 'post_status'=>'any'); |
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$posts = get_posts($args); |
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foreach ($posts as $post) { |
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delete_post_meta($post->ID, '_lang-'.$lang->slug); |
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} |
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// delete references to this language in categories & post tags |
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$terms = get_terms(array('category', 'post_tag'), 'get=all'); |
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foreach ($terms as $term) { |
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delete_metadata('term', $term->term_id, '_language'); |
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delete_metadata('term', $term->term_id, '_lang-'.$lang->slug); |
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} |
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// finally delete the language itself |
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wp_delete_term($lang->term_id, 'language'); |
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} |
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|
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// delete the termmeta table only if it is empty as other plugins may use it |
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$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("DROP TABLE $table;"); |
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unset($wpdb->termmeta); |
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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_widget'); // automatically created by WP |
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?> |
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