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Two ways to delete WP taxonomies and their terms
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| <?php | |
| register_uninstall_hook( __FILE__, 'do_delete_terms_wpdb' ); | |
| /** | |
| * Delete database entries of terms and taxonomies using wordpress SQL api $wpdb | |
| * | |
| * @global $wpdb | |
| * @wp-hook register_uninstall_hook | |
| * @author Travis Smith | |
| * http://wpsmith.net/2014/wp/plugin-uninstall-delete-terms-taxonomies-wordpress-database/ | |
| */ | |
| function do_delete_terms_wpdb() | |
| { | |
| global $wpdb; | |
| $taxonomies = array('term_1', 'term_2'); | |
| foreach ($taxonomies as $taxonomy) { | |
| if (taxonomy_exists($taxonomy)) { | |
| // Prepare & execute SQL | |
| $terms = $wpdb->get_results($wpdb->prepare("SELECT t.*, tt.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy IN ('%s') ORDER BY t.name ASC", $taxonomy)); | |
| // Delete Terms | |
| if ($terms) { | |
| foreach ($terms as $term) { | |
| $wpdb->delete($wpdb->term_taxonomy, array('term_taxonomy_id' => $term->term_taxonomy_id)); | |
| $wpdb->delete($wpdb->terms, array('term_id' => $term->term_id)); | |
| delete_option('prefix_' . $taxonomy->slug . '_option_name'); | |
| } | |
| } | |
| // Delete Taxonomy | |
| $wpdb->delete($wpdb->term_taxonomy, array('taxonomy' => $taxonomy), array('%s')); | |
| } | |
| } | |
| } | |
| register_uninstall_hook(__FILE__, 'do_delete_terms'); | |
| /** | |
| * Delete taxonomies and their terms using | |
| * | |
| * @uses get_terms | |
| * @uses wp_delete_term | |
| * @wp-hook register_uninstall_hook | |
| * @author orionrush | |
| */ | |
| function do_delete_terms() | |
| { | |
| $taxonomies = array('term_1', 'term_2'); | |
| foreach ($taxonomies as $taxonomy) { | |
| if (taxonomy_exists($taxonomy)) { | |
| $terms = get_terms($taxonomy, array('fields' => 'ids', 'hide_empty' => false)); | |
| foreach ($terms as $term) { | |
| wp_delete_term($term, $taxonomy); // delete each term | |
| } | |
| register_taxonomy($taxonomy, array()); // delete the taxonomy? | |
| // unset( $wp_taxonomies[$taxonomy]); // will this delete the taxonomy? | |
| } | |
| } | |
| } |
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