Reply To: Default open fields in repeater

• John Huebner

• October 24, 2018 at 6:40 am

This will create a number of empty rows when there are no rows

function set_start_rows($value, $post_id, $field) {
  if (!$value) {
    $row = array(
      // field key => value pairs for all subfields
      'field_5bcf70b75df1d' => NULL,
    );
    $number_of_rows = 10;
    $value = array_fill(0, $number_of_rows, $row);
  }
  return $value;
}
add_filter('acf/load_value/key=field_5bcf70a95df1c', 'set_start_rows', 20, 3);

This would automatically add 10 a number of new rows if there are no rows or the last row does not contain a value in a field

function set_start_rows($value, $post_id, $field) {
  // only do this in the admin
  if (!is_admin()) {
    return $value;
  }
  $add_rows = false;
  $index = 0;
  if (is_array($value)) {
    $index = count($value);
    if ($value[count($value)-1]['field_5bcf70b75df1d']) {
      // field is not empty in last row
      $add_rows = true;
    }
  }
  if (!$value) {
    $add_rows = true;
  }
  if ($add_rows) {
    if (!$value) {
      $value = array();
    }
    $row = array(
      // field key => value pairs for all subfields
      'field_5bcf70b75df1d' => NULL,
    );
    $number_of_rows = 5;
    $value = array_merge($value, array_fill($index, $number_of_rows, $row));
  }
  return $value;
}
add_filter('acf/load_value/key=field_5bcf70a95df1c', 'set_start_rows', 20, 3);

A really elegant way to do this would be to use JavaScript and detect when a value is added to the last row and then automatically add a new row. This should be possible, but I don’t have the answer to how to do that and it would take me a long time to figure out and test.