Reply To: Relationship field – set all values as selected as default

• Austin Ginder

• March 10, 2018 at 1:39 pm

I’m sure there are more eloquent ways to pull this off however give this a try. This will only work on relationship fields which are pulling in choices from custom post types.

function my_acf_load_value( $value, $post_id, $field ) {

	// Loads current post
	$post = get_post( $post_id );

	// Check we are on the new screen
	if ( $post->post_status == 'auto-draft' ) {

		// Pull in custom post types from fields
		$post_types = $field['post_type'];

		// Fetches all post IDs choices
		$post_ids = get_posts(
			array(
				'post_type'      => $post_types,
				'posts_per_page' => '-1',
				'fields'         => 'ids',
			)
		);

		// Assign all choices as the default value
		$value = $post_ids;

	}

	return $value;
}

add_filter( 'acf/load_value/type=relationship', 'my_acf_load_value', 10, 3 );