How to change the label of the "To:" field in the Date Module

Question

This doesn't seem to be the kind of thing you can change using hook_form_alter() unless I'm missing something.

The label of the "From" field can be any value you want, but the "to" field, if you have one, defaults to "to", see modules/date/date_elements.inc, line 369:

    $element[$to_field]['#title'] = t('to:');

so what's the correct way to change that to a value of my choosing, i.e. "Expires"? Via the Theme?

Answer 1

If you look further on down in date_elements.inc at line 412 you'll notice:

drupal_alter('date_combo_process', $element, $form_state, $context);

which allows any module to alter what it's created, eg, something like this:

function YOURMODULE_date_combo_process_alter(&$element, &$form_state, &$context) {

  $element['value2']['#title'] = t('expires:'); // this will change that to: to expires:

}

Just realize this simple example will do this for every instance of a combination to/from date, but information to get more specific is contained in $element, $form_state and $context. For example, the specific field name is contained in $element['#field_name'] and the form_id is in $form_state['build_info']['form_id'].

Answer 2

I always do this kind of thing with hook_form_alter() and pre_render function: example:

function MY_MODULE_OR_THEME_form_alter(&$form, &$form_state, $form_id) {
  if($form_id == 'MY_FORM_ID') {
   $form['#pre_render'][] = 'MY_CUSTOM_pre_render';
  }
}

function MY_CUSTOM_pre_render($element) {
  //dpm($form);
  //$element['MY_FIELD_NAME']['max']['#title'] = t('MY NEW TITLE'); // Find your proper field element.
  return $element;
}

Answer 3

There is a module named String Overrides that lets you override any string that is inserted via the t() function. You should be able to use that to module override "to:".