Profile: igorL-3

/**
 * Filter the Children parent field in the connect-toy-to-childmale Relationship Form 
 * to only show Children connected to Gender Male.
 * https://toolset.com/forums/topic/filtering-posts-for-relationship-connection-in-a-submission-form/
 */
function filter_parent_posts( $query ){
  $parent_post_type = "child";  // slug of parent post type
  $child_post_type = "toy";     // slug of child post type
  $rel_slug = "gender-child";   // slug of gender-child post relationship
  $male_post_id = 9;            // ID of Gender Male post
  $rel_form_id = 26;            // ID of the relationship form
 
  // relationship form is on Toy single posts, queries parent_post_type posts
  if ( ( defined('DOING_AJAX') && DOING_AJAX )
    && isset($query->query['post_type'][0])
    && $query->query['post_type'][0] == $parent_post_type
    && isset($_REQUEST['action'])
    && $_REQUEST['action'] == 'cred_association_form_ajax_role_find'
    && isset($_REQUEST['form_id'])
    && $_REQUEST['form_id'] == $rel_form_id
  ) {
    // querying by gender post, which is parent in gender-child
    $males = toolset_get_related_posts( $male_post_id, $rel_slug, array(
      'query_by_role' => 'parent',
      'limit' => 1000,
      'offset' => 0,
      'args' => array(),
      'return' => 'post_id',
      'role_to_return' => 'child'
    ));
 
    $query->set( 'post__in', $males );
  }
}
add_action( 'pre_get_posts', 'filter_parent_posts', 101, 1 );