Reply To: Create a filter by repeater sub field

• James

• July 8, 2016 at 12:57 pm

Hi @leyzaola

The relationship field saves the data as serialized IDs of the post objects. To learn more about serialize, please take a look at this page: http://php.net/manual/en/function.serialize.php.

To search only the ID, I believe you can do it like this:

$args = array(
  'numberposts' => -1,
  'post_type'   => 'noticias',
  'meta_query'  => array(

    array(
      'key'   => 'cobertura_%_pais',
      'compare' => '=',
      'value'   => '"' . $pais . '"',
    )

  )
);

To learn more about querying relationship field, please take a look at this page: https://www.advancedcustomfields.com/resources/querying-relationship-fields/.

Also, “_location_1_country” is a reference key used by ACF to save and load the right value, so you don’t need to worry about it.

I hope this helps 🙂