Filter relationship from another relationship field

• robbiegod

• March 17, 2015 at 6:44 am

I’m curious if this is possible to do. I’ve got a relationship field called module_to_post_filter. I have a module custom post type. I go to that post in that post type and tell this post which page/post it is allowed to be displayed on. Let’s say i’ve selected my “about us” page to accept one of my posts in my module post type.

I go to edit my “about us” page and i have another relationship field there called “post_to_module”. I want this field to only show the posts I selected from the other field.

I’m not sure quite how to go about doing this…I tried this, but pretty sure this is wrong because it keeps crashing my wordpress:

function pageFilter(  $args, $field, $post)
{

  $args[meta_query]= array(
			array(
      	'key' => 'module_to_post_filter',
        'value' => $post->ID
				)
		);
		return $args;
}
 
 
// filter for a specific field based on it's name
add_filter('acf/fields/relationship/query/name=post_to_module', 'pageFilter', 10, 3);

• James

• April 9, 2016 at 10:29 pm

Hi @robbiegod,

Thanks for the post.

I would recommend you hook into the acf/load_field filter and use this to pass the selected field object from the other relationship field on the other page.

The code would look like so:

<?php

function my_acf_load_field( $field ) {
	
   //get the field object
    $field['value'] = $new_field_value
    return $field;
    
}

// key
add_filter('acf/load_field/key=field_508a263b40457', 'my_acf_load_field');

?>