Club Drupal

// Constants that govern the behavior of the payment method checkout pane when

// no payment methods are enabled for an order.

define('COMMERCE_PAYMENT_PANE_NO_METHOD_EMPTY', 'empty');

define('COMMERCE_PAYMENT_PANE_NO_METHOD_EMPTY_EVENT', 'empty_event');

define('COMMERCE_PAYMENT_PANE_NO_METHOD_MESSAGE', 'message');

define('COMMERCE_PAYMENT_PANE_NO_METHOD_MESSAGE_EVENT', 'message_event');

  $form['commerce_payment_pane_no_method_behavior'] = array(

    '#type' => 'radios',

    '#title' => t('Checkout pane behavior when no payment methods are enabled for an order'),

    '#description' => t('Note: regardless of your selection, no payment transaction will be created for the order upon checkout completion as they represent actual financial transactions.'),

    '#options' => array(

      COMMERCE_PAYMENT_PANE_NO_METHOD_EMPTY => t('Leave the payment checkout pane empty.'),

      COMMERCE_PAYMENT_PANE_NO_METHOD_EMPTY_EVENT => t('Leave the payment checkout pane empty and trigger <em>When an order is first paid in full</em> on submission of free orders.'),

      COMMERCE_PAYMENT_PANE_NO_METHOD_MESSAGE => t('Display a message in the pane indicating payment is not required for the order.'),

      COMMERCE_PAYMENT_PANE_NO_METHOD_MESSAGE_EVENT => t('Display a message in the pane indicating payment is not required and trigger <em>When an order is first paid in full</em> on submission of free orders.'),

    ),

    '#default_value' => variable_get('commerce_payment_pane_no_method_behavior', COMMERCE_PAYMENT_PANE_NO_METHOD_MESSAGE),

    '#states' => array(

      'visible' => array(

        ':input[name="commerce_payment_pane_require_method"]' => array('checked' => FALSE),

      ),

    ),

  );

      $behavior = variable_get('commerce_payment_pane_no_method_behavior', COMMERCE_PAYMENT_PANE_NO_METHOD_MESSAGE);

      switch ($behavior) {

        case COMMERCE_PAYMENT_PANE_NO_METHOD_MESSAGE:

        case COMMERCE_PAYMENT_PANE_NO_METHOD_MESSAGE_EVENT:

          $pane_form['message'] = array(

            '#markup' => '<div>' . t('Payment is not required to complete your order.') . '</div>',

          );

          break;

        case COMMERCE_PAYMENT_PANE_NO_METHOD_EMPTY:

        case COMMERCE_PAYMENT_PANE_NO_METHOD_EMPTY_EVENT:

        default:

          break;

      }

  else {

    // If there were no payment methods on the form, check to see if the pane is

    // configured to trigger "When an order is first paid in full" on submission

    // for free orders.

    $behavior = variable_get('commerce_payment_pane_no_method_behavior', COMMERCE_PAYMENT_PANE_NO_METHOD_MESSAGE);

    if (in_array($behavior, array(COMMERCE_PAYMENT_PANE_NO_METHOD_EMPTY_EVENT, COMMERCE_PAYMENT_PANE_NO_METHOD_MESSAGE_EVENT))) {

      // Check the balance of the order.

      $balance = commerce_payment_order_balance($order);

      if (!empty($balance) && $balance['amount'] <= 0) {

        // Trigger the event now for free orders, simulating payment being

        // submitted on pane submission that brings the balance to 0. Use an

        // empty transaction, as we wouldn't typically save a transaction where

        // a financial transaction has not actually occurred.

        rules_invoke_all('commerce_payment_order_paid_in_full', $order, commerce_payment_transaction_new('', $order->order_id));

        // Update the order's data array to indicate this just happened.

        $order->data['commerce_payment_order_paid_in_full_invoked'] = TRUE;

      }

    }

  }