function countries_field_widget_form in Countries 8

Same name and namespace in other branches

1. 7.2 countries.fields.inc \countries_field_widget_form()
2. 7 countries.module \countries_field_widget_form()

Implements hook_field_widget_form().

File

./countries.fields.inc, line 290

All field related code.

Code

function countries_field_widget_form(&$form, &$form_state, $field, $instance, $langcode, $items, $delta, $element) {
  if ($instance['widget']['type'] == 'countries_continent') {
    $field_name = $field['field_name'];
    $settings = $field['settings'];
    $required = !empty($element['#required']);
    $continents = countries_get_continents();
    if (!empty($settings['continents'])) {
      $continents = array_intersect_key($continents, $settings['continents']);
    }

    // Widget may be rendered individually, in a group or even a sub-form.
    $field_parents = empty($form['#parents']) ? array() : $form['#parents'];
    $parents = array_merge($field_parents, array(
      $field_name,
      $langcode,
      $delta,
    ));
    $continent_parents = array_merge($parents, array(
      'continent',
    ));
    $iso2 = empty($items[$delta]['iso2']) ? '' : $items[$delta]['iso2'];
    $selected_continent = '';
    if (isset($form_state['values'])) {

      // This override the settings that are passed onto the options filter
      // query. This is not called when JScript is disabled.
      $selected_continent = drupal_array_get_nested_value($form_state['values'], $continent_parents);
      if (!$selected_continent) {

        // Fallback to the raw user post. A workaround for AJAX submissions.
        $user_data = drupal_array_get_nested_value($form_state['input'], $continent_parents);
        if (array_key_exists($user_data, $continents)) {
          $selected_continent = $user_data;
        }
      }

      // Do not override the continent settings when empty.
      if ($selected_continent) {
        $settings['continents'] = array(
          $selected_continent,
        );
      }
    }
    elseif (!empty($iso2) && ($country = country_load($iso2))) {
      $selected_continent = $country->continent;
    }

    // Work out the best ID to exactly target the element.
    $wrapper_parents = array_merge($parents, array(
      'iso-wrapper',
    ));
    $wrapper_id = implode('-', $wrapper_parents);

    // Assist themers with floating DIVs.
    $element['#type'] = 'container';
    $element['#attributes']['class'][] = 'clearfix countries-continent-wrapper';
    $element['continent'] = array(
      '#type' => 'select',
      '#title' => t('Continent'),
      '#options' => $continents,
      '#empty_option' => t('-- None selected --'),
      '#empty_value' => 'none',
      '#default_value' => $selected_continent,
      '#required' => $required,
      '#ajax' => array(
        'callback' => '_ajax_countries_continent_widget_callback',
        'wrapper' => $wrapper_id,
      ),
    );
    $first = array_shift($continent_parents);
    $element['iso2'] = array(
      '#type' => 'country',
      '#title' => t('Country'),
      '#default_value' => $iso2,
      '#prefix' => '<div id="' . $wrapper_id . '" class="countries-ajax-wrapper">',
      '#suffix' => '</div>',
      '#empty_value' => '',
      '#hide_empty' => TRUE,
      '#filters' => $settings,
      '#required' => $required,
      '#states' => array(
        'visible' => array(
          ':input[name="' . $first . '[' . implode('][', $continent_parents) . ']"]' => array(
            '!value' => 'none',
          ),
        ),
      ),
    );
  }
  return $element;
}