Allow users to change the sort order

Hi,

I would like to create a frontend filter allowing users to change the order of posts according to custom fields.

Here is an example of code to filter based on a custom field :

function custom_queries($query){
   if ( ! is_admin() && is_post_type_archive( 'event' ) && $query->is_main_query() ) {
        $query->set( 'orderby', 'meta_value_num' );
        $query->set( 'order', 'ASC');
        $query->set( 'meta_query', array(
            array(
                'key'     => 'custom_field',
                'compare' => '>=',
                'type'    => 'numeric',
            )
        ) );
   }
}
add_action( 'pre_get_posts', 'university_adjust_queries' );

But do you know how to add multiple custom fields and create the filter in frontend ?

Thanks in advance

• This topic was modified 3 years, 11 months ago by sousouch.