function commerce_checkout_forms in Commerce Core 7

Implements hook_forms().

Each page of the checkout form is actually a unique form as opposed to a single multistep form. To accommodate this, we map any form ID beginning with commerce_checkout_form_ to the same form builder assuming the remainder of the form ID matches a valid checkout page ID.

File

modules/checkout/commerce_checkout.module, line 225

Enable checkout as a multi-step form with customizable pages and a simple checkout pane API.

Code

function commerce_checkout_forms($form_id, $args) {
  $forms = array();

  // All checkout page forms should be built using the same function.
  if (strpos($form_id, 'commerce_checkout_form_') === 0) {

    // Ensure the checkout page is valid.
    if (commerce_checkout_page_load(substr($form_id, 23))) {
      $forms[$form_id] = array(
        'callback' => 'commerce_checkout_form',
      );
    }
  }
  $forms['commerce_checkout_add_complete_rule_form'] = array(
    'callback' => 'rules_admin_add_reaction_rule',
  );
  return $forms;
}