Automatically translate double field select value, but not free text

Question

I have created a content type with a double field field configured as a Select list & Text field with a list of predefined allowed values for the Select List:

0|my option a
1|my option b
2|my option c

When I create a node for that content type in my default language, I get to choose between the 3 allowed values and can input some free text in the text field (as expected).

However when I translate my node, I am unable to translate the options from the select list (I can choose between them but can't change them).

I would like to be able to translate the allowed values list once somewhere (ideally at content type level, but I'm happy to have an alternative) and have those values enforced at node level when I translate.

For instance:

• Default language (e.g English): I create 1 node with 1|my option b as the select value and some free text
• Translation (e.g. Spanish): when I translate the node to Spanish, the select value becomes 1|mi opción b (which can't be changed) and I can translate the free text for the input field

Is there any way to automatically translate a double field select value (from one language to another), but not the free text (which can be translated freely) ?

Answer 1

Here is a simple workaround:

/**
 * Implements hook_field_widget_form_alter().
 */
function HOOK_field_widget_form_alter(&$element, &$form_state, $context) {
  if ($context['instance']['widget']['type'] == 'select_&_textfield') {
    foreach ($element['first']['#options'] as $key => $label) {
      $element['first']['#options'][$key] = t($label);
    }
  }
}