WordPress Plugin: Search For Name Or Description In The Quick Search For Tags In The Menu Editor

menu-quick-search-tags-enhancements.php

<?php
/**
 * Plugin Name:  Quick Search Menu Enhancement
 * Description:  Search for name or description in the quick-search for tags in the menu editor 
 * Plugin URI:   https://gist.github.com/birgire/b7001f51b3ad970f37fee2b8f854d939
 * Author:       birgire
 * Version:      1.0.0
 */
 
/**
 * Replace the name__like with the custom _name_or_description__like attribute of get_terms()
 * during the post_tag search in the menu backend page.
 */
add_filter( 'get_terms_args', function( array $args, array $taxonomies  )
{
    if(    
	         doing_action( 'wp_ajax_menu-quick-search' ) 
		    && 'quick-search-taxonomy-post_tag' === filter_input( INPUT_POST, 'type' )
		    && isset( $args['name__like'] ) 
	  ) {
		    $args['_name_or_description__like'] = $args['name__like'];
    		unset( $args['name__like'] ); 
    }
    
   	return $args;
	
}, 10, 2 );


/**
 * Support the custom _name_or_description__like attribute of get_terms()
 */
add_filter( 'terms_clauses', function( $clauses, $taxonomies, $args ) use ( &$wpdb )
{
    if(    
           ! empty( $args['_name_or_description__like'] ) 
		    && ! empty( $clauses['where'] ) 
   	) {
	
	      $like = '%' . $wpdb->esc_like( $args['_name_or_description__like'] ) . '%';
		
		    $clauses['where'] .=  $wpdb->prepare( 
			    " AND ( t.name LIKE %s OR tt.description LIKE %s ) ", 
			    $like,
			    $like
		    );
	  }
	  
    return $clauses;
    
}, 10, 3 );