diff --git a/commerce_coupon.info b/commerce_coupon.info
index 95d5ef4..27784b0 100644
--- a/commerce_coupon.info
+++ b/commerce_coupon.info
@@ -13,4 +13,5 @@ files[] = includes/views/handlers/commerce_coupon_handler_field_coupon_edit.inc
files[] = includes/views/handlers/commerce_coupon_handler_field_coupon_link.inc
files[] = includes/views/handlers/commerce_coupon_handler_argument_coupon_id.inc
files[] = includes/views/handlers/commerce_coupon_handler_argument_coupon_code.inc
+files[] = includes/views/handlers/commerce_coupon_handler_area_cart_form.inc
files[] = commerce_coupon.info.inc
diff --git a/commerce_coupon.module b/commerce_coupon.module
index 66a6a7e..f59b05f 100644
--- a/commerce_coupon.module
+++ b/commerce_coupon.module
@@ -788,7 +788,7 @@ function commerce_coupon_redeem_coupon_code($code, $order, &$error) {
$coupon_wrapper = entity_metadata_wrapper('commerce_coupon', $coupon);
- if (commerce_coupon_evaluate_conditions($coupon_wrapper, $order_wrapper)) {
+ if (empty($error) && commerce_coupon_evaluate_conditions($coupon_wrapper, $order_wrapper)) {
// Add the coupon to the order.
$order_wrapper->commerce_coupons[] = $coupon_wrapper->value();
diff --git a/includes/views/commerce_coupon.views.inc b/includes/views/commerce_coupon.views.inc
index 231e606..ce2d723 100644
--- a/includes/views/commerce_coupon.views.inc
+++ b/includes/views/commerce_coupon.views.inc
@@ -74,6 +74,15 @@ function commerce_coupon_views_data_alter(&$data) {
$data['commerce_coupon']['coupon_id']['argument'] = array(
'handler' => 'commerce_coupon_handler_argument_coupon_id',
);
+
+ // Expose the coupon form on the cart form.
+ $data['commerce_order']['coupon_cart_form'] = array(
+ 'title' => t('Coupon cart form'),
+ 'help' => t('Coupon cart form'),
+ 'area' => array(
+ 'handler' => 'commerce_coupon_handler_area_cart_form',
+ ),
+ );
}
}
diff --git a/includes/views/handlers/commerce_coupon_handler_area_cart_form.inc b/includes/views/handlers/commerce_coupon_handler_area_cart_form.inc
new file mode 100644
index 0000000..1659703
--- /dev/null
+++ b/includes/views/handlers/commerce_coupon_handler_area_cart_form.inc
@@ -0,0 +1,181 @@
+ 'textfield',
+ '#title' => t('Form item weight'),
+ '#default_value' => $this->options['weight'],
+ '#required' => TRUE,
+ );
+ }
+
+ function options_validate(&$form, &$form_state) {
+ $weight = $form_state['values']['options']['weight'];
+ // Weight must be an integer:
+ if (!is_null($weight )&& (!is_numeric($weight)) || (int) $weight != $weight) {
+ form_set_error('options][weight', t('!name field must be an integer.', array('!name' => $form['weight']['#title'])));
+ }
+ }
+
+ function render($values = FALSE) {
+ // Render a Views form item placeholder.
+ // This causes Views to wrap the View in a form.
+ return '';
+ }
+
+ /**
+ * This handler never outputs data when the view is empty.
+ */
+ function views_form_empty($empty) {
+ return $empty;
+ }
+
+ function views_form(&$form, &$form_state) {
+
+ // Ensure this include file is loaded when the form is rebuilt from the cache.
+ $form_state['build_info']['files']['coupon_cart_form'] = drupal_get_path('module', 'commerce_coupon') . '/includes/views/handlers/commerce_coupon_handler_area_cart_form.inc';
+
+ $form[$this->options['id']] = array(
+ '#prefix' => '
',
+ '#suffix' => '
',
+ '#weight' => $this->options['weight'],
+ );
+
+ $form[$this->options['id']]['coupon_code'] = array(
+ '#type' => 'textfield',
+ '#title' => t('Coupon code'),
+ '#description' => t('Enter your coupon code here.'),
+ );
+
+ $form[$this->options['id']]['coupon_add'] = array(
+ '#type' => 'submit',
+ '#value' => t('Add coupon'),
+ '#name' => 'coupon_add',
+ // Limit validation to the coupon code.
+ '#limit_validation_errors' => array(array('coupon_code')),
+ '#validate' => array('commerce_coupon_handler_area_cart_form_validate'),
+ '#submit' => array('commerce_coupon_handler_area_cart_form_submit'),
+ );
+ // Attach ajax if views ajax enabled.
+ if ($this->view->use_ajax) {
+ // @todo implement AJAX.
+ }
+
+ // First look for an order_id argument.
+ foreach ($this->view->argument as $name => $argument) {
+ if ($argument instanceof commerce_order_handler_argument_order_order_id) {
+ // If it is single value...
+ if (count($argument->value) == 1) {
+ $order_id = reset($argument->value);
+ break;
+ }
+ }
+ }
+ $order = !empty($order_id) ? commerce_order_load($order_id) : commerce_cart_order_load($GLOBALS['user']->uid);
+ }
+}
+
+/**
+ * Validate: function commerce_coupon_handler_area_cart_form
+ */
+function commerce_coupon_handler_area_cart_form_validate($form, $form_state) {
+ // Get the form and values for the coupon form.
+ $coupon_array_parents = array_slice($form_state['triggering_element']['#array_parents'], 0, -1);
+ $coupon_parents = array_slice($form_state['triggering_element']['#parents'], 0, -1);
+ $coupon_values = drupal_array_get_nested_value($form_state['values'], $coupon_parents);
+ $coupon_form = drupal_array_get_nested_value($form, $coupon_array_parents);
+ $coupon_code = $coupon_values['coupon_code'];
+ $order = $form_state['order'];
+
+ $error = '';
+
+ // No code provided
+ if (empty($coupon_code)) {
+ $error = t('Please enter a coupon code.');
+ }
+ else {
+ // Check if the coupon code has already been applied.
+ $coupon = commerce_coupon_load_by_code($coupon_code);
+
+ if (empty($coupon)) {
+ $error = t('Please enter a valid coupon code.');
+ }
+ else {
+ // The same coupon cannot be added twice.
+ $order_wrapper = entity_metadata_wrapper('commerce_order', $order);
+ foreach ($order_wrapper->commerce_coupons as $order_coupon_wrapper) {
+ if ($order_coupon_wrapper->coupon_id->value() == $coupon->coupon_id) {
+ $error = t('The coupon you have entered has already been applied to your order');
+ }
+ }
+ }
+ }
+
+ // If a coupon was invalidated during the cart refresh (e.g. if its
+ // discounts failed their conditions), an error message will have been
+ // set.
+ if (empty($error)) {
+ $error = &drupal_static('commerce_coupon_error_' . strtolower($coupon_code));
+ }
+ // If we have errors set the form error.
+ if (!empty($error)) {
+ form_set_error(implode('][', $coupon_form['coupon_code']['#parents']), $error);
+ }
+}
+
+/**
+ * Submit: function commerce_coupon_handler_area_cart_form
+ *
+ * @todo Anyway to rollback redeeming a coupon if we find an error during
+ * redemption?
+ */
+function commerce_coupon_handler_area_cart_form_submit($form, $form_state) {
+ // Get the values for the coupon form.
+ $coupon_parents = array_slice($form_state['triggering_element']['#parents'], 0, -1);
+ $coupon_values = drupal_array_get_nested_value($form_state['values'], $coupon_parents);
+ $coupon_code = $coupon_values['coupon_code'];
+ $order = $form_state['order'];
+
+ $error = '';
+
+ // Redeem the coupon.
+ $coupon = commerce_coupon_redeem_coupon_code($coupon_code, $order, $error);
+ $order = commerce_order_load($order->order_id);
+
+ // Error found during redeem.
+ if (!empty($error)) {
+ watchdog('commerce_coupon', 'An error occurred redeeming a coupon: @error', array('@error' => $error), WATCHDOG_ERROR);
+ drupal_set_message(t('Unable to redeem coupon.'), 'error');
+ commerce_coupon_remove_coupon_from_order($order, $coupon);
+ }
+
+ if ($coupon) {
+ // Allow modules/rules to act when a coupon has been successfully added
+ // to the cart.
+ rules_invoke_all('commerce_coupon_applied_to_cart', $coupon, $order);
+ }
+}