function commerce_price_field_widget_form in Commerce Core 7

Implements hook_field_widget_form().

File

modules/price/commerce_price.module, line 612

Defines the Price field with widgets and formatters used to add prices with currency codes to various Commerce entities.

Code

function commerce_price_field_widget_form(&$form, &$form_state, $field, $instance, $langcode, $items, $delta, $element) {

  // Use the default currency if the setting is not present.
  if (empty($instance['widget']['settings']['currency_code']) || $instance['widget']['settings']['currency_code'] == 'default') {
    $default_currency_code = NULL;
  }
  else {
    $default_currency_code = $instance['widget']['settings']['currency_code'];
  }

  // If a price has already been set for this instance prepare default values.
  if (isset($items[$delta]['amount']) && $items[$delta]['amount'] !== '') {
    $currency = commerce_currency_load($items[$delta]['currency_code']);

    // Convert the price amount to a user friendly decimal value.
    $default_amount = commerce_currency_amount_to_decimal($items[$delta]['amount'], $currency['code']);

    // Run it through number_format() to ensure it has the proper number of
    // decimal places.
    $default_amount = number_format($default_amount, $currency['decimals'], '.', '');
    $default_currency_code = $items[$delta]['currency_code'];
  }
  else {
    $default_amount = NULL;
  }

  // Load the default currency for this instance.
  $default_currency = commerce_currency_load($default_currency_code);
  $element['#attached']['css'][] = drupal_get_path('module', 'commerce_price') . '/theme/commerce_price.theme.css';

  // Build the form based on the type of price widget.
  switch ($instance['widget']['type']) {

    // The simple widget is just a textfield with a non-changeable currency.
    case 'commerce_price_simple':
      $element['amount'] = array(
        '#type' => 'textfield',
        '#title' => $element['#title'],
        '#default_value' => $default_amount,
        '#required' => $instance['required'] && ($delta == 0 || $field['cardinality'] > 0),
        '#size' => 10,
        '#field_suffix' => $default_currency['code'],
      );

      // Add the help text if specified.
      if (!empty($element['#description'])) {
        $element['amount']['#field_suffix'] .= '<div class="description">' . $element['#description'] . '</div>';
      }
      $element['currency_code'] = array(
        '#type' => 'value',
        '#default_value' => $default_currency['code'],
      );
      break;

    // The full widget is a textfield with a currency select list.
    case 'commerce_price_full':
      $element['amount'] = array(
        '#type' => 'textfield',
        '#title' => $element['#title'],
        '#default_value' => $default_amount,
        '#required' => $instance['required'] && ($delta == 0 || $field['cardinality'] > 0),
        '#size' => 10,
      );

      // Build a currency options list from all enabled currencies.
      $options = array();
      foreach (commerce_currencies(TRUE) as $currency_code => $currency) {
        $options[$currency_code] = check_plain($currency['code']);
      }

      // If the current currency value is not available, add it now with a
      // message in the help text explaining it.
      if (empty($options[$default_currency['code']])) {
        $options[$default_currency['code']] = check_plain($default_currency['code']);
        $description = t('The currency set for this price is not currently enabled. If you change it now, you will not be able to set it back.');
      }
      else {
        $description = '';
      }

      // If only one currency option is available, don't use a select list.
      if (count($options) == 1) {
        $currency_code = key($options);
        $element['amount']['#field_suffix'] = $currency_code;

        // Add the help text if specified.
        if (!empty($element['#description'])) {
          $element['amount']['#field_suffix'] .= '<div class="description">' . $element['#description'] . '</div>';
        }
        $element['currency_code'] = array(
          '#type' => 'value',
          '#default_value' => $currency_code,
        );
      }
      else {
        $element['amount']['#prefix'] = '<div class="commerce-price-full">';
        $element['currency_code'] = array(
          '#type' => 'select',
          '#description' => $description,
          '#options' => $options,
          '#default_value' => isset($items[$delta]['currency_code']) ? $items[$delta]['currency_code'] : $default_currency['code'],
          '#suffix' => '</div>',
        );

        // Add the help text if specified.
        if (!empty($element['#description'])) {
          $element['currency_code']['#suffix'] .= '<div class="description">' . $element['#description'] . '</div>';
        }
      }
      break;
  }
  $element['data'] = array(
    '#type' => 'value',
    '#default_value' => !empty($items[$delta]['data']) ? $items[$delta]['data'] : array(
      'components' => array(),
    ),
  );
  $element['#element_validate'][] = 'commerce_price_field_widget_validate';
  return $element;
}