function hook_calculate_tax in Ubercart 6.2

Same name and namespace in other branches

1. 5 docs/hooks.php \hook_calculate_tax()

Calculates tax line items for an order.

Parameters

$order: An order object or an order id.

Return value

An array of tax line item objects keyed by a module-specific id.

2 functions implement hook_calculate_tax()

Note: this list is generated by pattern matching, so it may include some functions that are not actually implementations of this hook.

uc_cybersource_calculate_tax in payment/uc_cybersource/uc_cybersource.module

Calculates taxes for an order using CyberSource's tax service.

uc_taxes_calculate_tax in uc_taxes/uc_taxes.module

Calculates the amount and types of taxes that apply to an order.

2 invocations of hook_calculate_tax()

uc_taxes_calculate in uc_taxes/uc_taxes.module

Calculates the taxes for an order based on enabled tax modules.

uc_taxes_javascript in uc_taxes/uc_taxes.module

AJAX callback for order preview.

File

docs/hooks.php, line 87

These are the hooks that are invoked by the Ubercart core.

Code

function hook_calculate_tax($order) {
  global $user;
  if (is_numeric($order)) {
    $order = uc_order_load($order);
    $account = user_load(array(
      'uid' => $order->uid,
    ));
  }
  elseif ((int) $order->uid) {
    $account = user_load(array(
      'uid' => intval($order->uid),
    ));
  }
  else {
    $account = $user;
  }
  if (!is_object($order)) {
    return array();
  }
  if (empty($order->delivery_postal_code)) {
    $order->delivery_postal_code = $order->billing_postal_code;
  }
  if (empty($order->delivery_zone)) {
    $order->delivery_zone = $order->billing_zone;
  }
  if (empty($order->delivery_country)) {
    $order->delivery_country = $order->billing_country;
  }
  $order->taxes = array();
  if (isset($order->order_status)) {
    $state = uc_order_status_data($order->order_status, 'state');
    $use_same_rates = in_array($state, array(
      'payment_received',
      'completed',
    ));
  }
  else {
    $use_same_rates = FALSE;
  }
  $arguments = array(
    'order' => array(
      '#entity' => 'uc_order',
      '#title' => t('Order'),
      '#data' => $order,
    ),
    'tax' => array(
      '#entity' => 'tax',
      '#title' => t('Tax rule'),
    ),
    'account' => array(
      '#entity' => 'user',
      '#title' => t('User'),
      '#data' => $account,
    ),
  );
  $predicates = ca_load_trigger_predicates('calculate_taxes');
  foreach (uc_taxes_rate_load() as $tax) {
    if ($use_same_rates) {
      foreach ((array) $order->line_items as $old_line) {
        if ($old_line['type'] == 'tax' && $old_line['data']['tax_id'] == $tax->id) {
          $tax->rate = $old_line['data']['tax_rate'];
          break;
        }
      }
    }
    $arguments['tax']['#data'] = $tax;
    if (ca_evaluate_conditions($predicates['uc_taxes_' . $tax->id], $arguments)) {
      $line_item = uc_taxes_action_apply_tax($order, $tax);
      if ($line_item) {
        $order->taxes[$line_item->id] = $line_item;
      }
    }
  }
  return $order->taxes;
}