function commerce_invoice_calculate_total in Commerce Invoice 7.2

Calculates the invoice total.

Parameters

Invoice $invoice: The invoice object whose order total should be calculated.

1 call to commerce_invoice_calculate_total()

commerce_invoice_form_submit in ./commerce_invoice.admin.inc

Form API submit callback for the invoice form.

File

./commerce_invoice.module, line 469

The Commerce Invoice module.

Code

function commerce_invoice_calculate_total(Invoice $invoice) {
  $wrapper = $invoice
    ->wrapper();

  // No items - no need to calculate anything.
  if (!$wrapper->commerce_invoice_items
    ->count()) {
    return;
  }

  // Use first item's currency code.
  $currency_code = $wrapper->commerce_invoice_items
    ->get(0)->commerce_total->currency_code
    ->value();
  $wrapper->commerce_invoice_total->amount = 0;
  $wrapper->commerce_invoice_total->currency_code = $currency_code;
  $base_price = array(
    'amount' => 0,
    'currency_code' => $currency_code,
    'data' => array(),
  );
  $wrapper->commerce_invoice_total->data = commerce_price_component_add($base_price, 'base_price', $base_price, TRUE);
  $invoice_total = $wrapper->commerce_invoice_total
    ->value();
  foreach ($wrapper->commerce_invoice_items as $delta => $line_item_wrapper) {

    // Do not allow invoices with mixed currencies.
    if ($currency_code != $line_item_wrapper->commerce_total->currency_code
      ->value()) {
      $wrapper->commerce_line_items
        ->offsetUnset($delta);
      continue;
    }
    $line_item_total = $line_item_wrapper->commerce_total
      ->value();
    $component_total = commerce_price_component_total($line_item_total);

    // Add the totals.
    $wrapper->commerce_invoice_total->amount = $wrapper->commerce_invoice_total->amount
      ->value() + $component_total['amount'];

    // Combine the line item total's component prices into the order total.
    $invoice_total['data'] = commerce_price_components_combine($invoice_total, $line_item_total);
  }
  $wrapper->commerce_invoice_total->data = $invoice_total['data'];
}