protected function CommerceInvoiceEntityController::generate_invoice_id in Commerce Invoice 7

Generates invoice id

Parameters

object $invoice The invoice to generate an invoice number for.:

Return value

The generated invoice id

1 call to CommerceInvoiceEntityController::generate_invoice_id()

CommerceInvoiceEntityController::save in includes/commerce_invoice.controller.inc

Saves an invoice.

File

includes/commerce_invoice.controller.inc, line 114

The controller for the invoice entity containing the CRUD operations.

Class

CommerceInvoiceEntityController

The controller class for invoices contains methods for the order CRUD operations. The load method is inherited from the default controller.

Code

protected function generate_invoice_id($invoice) {

  // TODO: there is probably a better way to do this
  // Invoice generation method
  $method = variable_get('commerce_invoice_number_method', COMMERCE_INVOICE_METHOD_YEAR);
  if ($method == COMMERCE_INVOICE_METHOD_CALLBACK) {
    $function_name = variable_get('commerce_invoice_number_callback', '');
    if (empty($function_name) || !function_exists($function_name)) {
      drupal_set_message(t('No valid callback defined for invoice number generation.'), 'error');
      return t('no-invoice-number');
    }
    else {
      return $function_name($invoice);
    }
  }

  // Get last invoice created
  $result = db_select('commerce_invoice', 'i')
    ->fields('i')
    ->orderBy('created', 'DESC')
    ->range(0, 1)
    ->execute();
  if ($record = $result
    ->fetchAssoc()) {
    $last_number = $record['invoice_number'];
    switch ($method) {
      case COMMERCE_INVOICE_METHOD_INFINITE:
        $last_id = $record['invoice_id'];
        $id = $last_id + 1;
        $return = str_replace('[invoice_id]', $id, $method);
        break;
      case COMMERCE_INVOICE_METHOD_YEAR:

        // Are we in the same year as the last invoice
        $dash_pos = strpos($last_number, '-');
        $last_year = substr($last_number, 0, $dash_pos);
        if ($last_year == date('Y')) {

          // Get last invoice id
          $last_id = strstr($last_number, '-');
          $last_id = str_replace('-', '', $last_id);

          // Increment invoice id
          $id = $last_id + 1;
          $return = $last_year . '-' . $id;
        }
        else {

          // Reset invoice id to 1
          $return = date('Y') . '-1';
        }
        break;
      case COMMERCE_INVOICE_METHOD_MONTH:
        $parts = explode('-', $last_number);
        $last_year = $parts[0];
        $last_month = $parts[1];
        $last_id = $parts[2];
        $year = date('Y');
        $month = date('m');
        if ($last_year == $year) {
          if ($last_month == $month) {
            $id = $last_id + 1;
          }
          else {
            $id = 1;
          }
        }
        else {
          $id = 1;
        }
        $return = date('Y') . '-' . date('m') . '-' . $id;
        break;
    }
    return $return;
  }
  else {

    // First invoice being generated
    $id = 1;
    $result = str_replace('[invoice_id]', $id, $method);
    return date($result);
  }
}