function interval_field_instance_settings_form in Interval Field 7

Implements hook_field_instance_settings_form().

Allow the user to choose from available periods

File

./interval.module, line 171

Defines an interval field @copyright Copyright(c) 2011 Rowlands Group @license GPL v2+ http://www.fsf.org/licensing/licenses/gpl.html @author Lee Rowlands leerowlands at rowlandsgroup dot com

Code

function interval_field_instance_settings_form($field, $instance) {
  $form = array();
  $settings = $instance['settings'];
  $widget = $instance['widget']['type'];
  if ($widget == 'interval_default') {
    $options = array();
    $intervals = interval_get_intervals();
    foreach ($intervals as $key => $detail) {
      $options[$key] = $detail['plural'];
    }
    $form['allowed_periods'] = array(
      '#type' => 'checkboxes',
      '#title' => t('Allowed periods'),
      '#options' => $options,
      '#description' => t('Select the periods you wish to be available in the dropdown. Selecting none will make all of them available.'),
      '#default_value' => isset($settings['allowed_periods']) ? $settings['allowed_periods'] : array(),
    );
  }
  return $form;
}