single = $post_type; $this->plural = !empty( $plural ) ? $plural : $post_type .'s'; $this->slug = !empty( $slug ) ? $slug : sanitize_title( $this->plural ); add_filter( 'manage_edit-'. $this->slug .'_columns', array( &$this, 'columns' ) ); add_action( 'manage_posts_custom_column', array( &$this, 'columns_display' ) ); } public function columns( $columns ) { $taxonomies = get_object_taxonomies( $this->slug ); if ( !empty( $taxonomies ) ){ foreach ( $taxonomies as $key => $tax ) { if ( $tax == 'post_tag' || $tax == 'post_category' ) continue; $object = get_taxonomy( $tax ); if ( !$object->hierarchical ) continue; $this->taxonomies[] = $tax; $columns[$tax.'_column'] = $object->label; } } return $columns; } public function columns_display( $column ) { if ( !empty( $this->taxonomies ) ){ foreach ( $this->taxonomies as $tax ) { if ( $column == $tax.'_column' ) { $this->taxonomy_column( $tax, ucfirst( str_replace( '-', ' ', $tax ) ) ); } } } } public function taxonomy_column( $tax = '', $name = '' ) { global $post; $id = $post->ID; $categories = get_the_terms( $id, $tax ); if ( !empty( $categories ) ) { $out = array(); foreach ( $categories as $c ) { $out[] = sprintf( '%s', esc_url( add_query_arg( array( 'post_type' => $post->post_type, $tax => $c->slug ), 'edit.php' ) ), esc_html( sanitize_term_field( 'name', $c->name, $c->term_id, 'category', 'display' ) ) ); } echo join( ', ', $out ); } else { _e( 'No '. $name .' Specified' ); } } }