Topic Tag: Forms with post relationships

add_filter('cred_form_validate','validate_parent_consultant',10,2);
 
function validate_parent_consultant($field_data, $form_data)
{
    list($fields,$errors)=$field_data;
    //error_log(print_r($fields, true));
    $forms = array( 6 );
 
    // validate if correct CRED form ID
    if ( in_array( $form_data['id'], $forms ) ) {
 
      // edit these 6 lines as needed
      $parent_field_post_name = '@consultant-event_parent';
      $parent_field_name = '@consultant-event.parent';
      $checkbox_slug = 'parent-checkbox-field';
      $taxonomy_slug = 'consultant-taxonomy';
      $taxonomy_terms = array('a', 'b');
      $test_cbs = array( 'a', 'b', 'c' );
 
      // get the parent ID from the form field
      $parent_id = $_POST[$parent_field_post_name];
 
      // check if parent has all matching checkboxes
      $vals = types_render_field($checkbox_slug, array( "separator"=>",", "id"=>$parent_id));
      $any = strlen($vals) > 0 ? explode(',', $vals) : array();
      $cbs_match = sizeof($any) > 0 && sizeof(array_intersect( $any, $test_cbs)) == sizeof($test_cbs);
 
      // Test if the parent has all the right term(s)
      $matching_terms = [];
      foreach($taxonomy_terms as $tax_term) {
        if( is_object_in_term( $parent_id, $taxonomy_slug, $tax_term ) ){
          $matching_terms[]= $tax_term;
        }
      }
      $terms_match = sizeof($matching_terms) == sizeof($taxonomy_terms);
 
      // combine parent validations
      if( !$cbs_match || !$terms_match ) {
        $errors[$parent_field_name] = __('Select a different parent post.', 'your-theme-domain');
      }
    }
 
    //return result
    return array($fields,$errors);
}