post object filter by custom field, not title

• oterox

• June 14, 2016 at 8:34 pm

I have a relational field of type “post object”.
It shows posts of type store and it allows me to search by store title.
Is it possible to search by another custom field, like “store-number” or whatever?
Thk.

• James

• June 15, 2016 at 2:54 pm

Hi @oterox

I believe you can do it like this:

function my_post_object_query( $args, $field, $post_id ) {
	
    // Get the search text
    $the_search = $args['s'];
    
    // Remove it so ACF won't search the posts based on title
    unset($args['s']);
    
    // Search based on custom field
    $args['meta_key'] = 'custom_field_name';
    $args['meta_value'] =  $the_search;
    $args['meta_compare'] = 'LIKE';
    
	// return
    return $args;
    
}

// filter for a specific field based on it's name
add_filter('acf/fields/post_object/query/name=post_object_field_name', 'my_post_object_query', 10, 3);

This page should give you more idea about it: https://www.advancedcustomfields.com/resources/acf-fields-post_object-query/

I hope this helps 🙂