Reply To: Query Posts by sub custom Field values

• Vayu Robins

• January 25, 2018 at 8:54 am

Hi again John.

Could not get your code to work, the code you so kindly share here: https://acfextras.com/dont-query-repeaters/

So I modified it and had to use the field keys like so:

add_action('acf/save_post', function( $post_id ) {

	$meta_key = '_book_authors';
	$saved_values = array();
	$authors = $_POST['acf'];

	if( $authors ) {
		foreach( $authors['field_55bf6c9024b5f'] as $key => $author ) { // field_55bf6c9024b5f: ACF field key for "book_authors" meta field

			$author_id = $author['field_55dafbfa91614'];  // field_55bf6c9024b5f: ACF field key for "book_authors" meta field
			add_post_meta( $post_id, $meta_key, $author_id, false );

		}
	}
	
}, 20, 1 );