ding_debt.module

<?php
/**
 * @file
 * Handles display and creation/deletion of debts for users.
 */

/**
 * Implements hook_ctools_plugin_directory().
 *
 * It simply tells panels where to find the .inc files that define various
 * args, contexts, content_types. In this case the subdirectories of
 * ctools_plugin_example/panels are used.
 */
function ding_debt_ctools_plugin_directory($module, $plugin) {
  if ($module == 'ctools' && !empty($plugin)) {
    return 'plugins/' . $plugin;
  }
}

/**
 * Implements hook_ding_provider_user().
 */
function ding_debt_ding_provider_user() {
  return array(
    'debt' => array(
      'required' => TRUE,
    ),
    'payment' => array(
      'required' => TRUE,
    ),
  );
}

/**
 * Callback for successful payment transaction.
 */
function ding_debt_payment_callback($transaction) {
  return ding_provider_invoke_page('debt', 'payment_received', $transaction['payment_price'], $transaction['params']['debt_ids'], $transaction['payment_order_id']);
}