drupal7 payment module:把支付form元素注入到form中

注入到form中

function paymentCreate($uid, $amount, $finish_callback, \PaymentMethod $payment_method = NULL) {
    $payment_method = $payment_method ? $payment_method : new \PaymentMethodUnavailable;
    if($payment_method instanceof \PaymentMethodUnavailable) {
        $payment_method_id = 4;
        $entities = entity_load('payment_method', array($payment_method_id));
        $payment_method = reset($entities);
    }
    $payment = new \Payment(array(
        'currency_code' => 'HKD',
        'description' => 'This is the payment description',
        'finish_callback' => $finish_callback,
        'method' => $payment_method,
        'uid' => $uid,
    ));
    $payment->setLineItem(new \PaymentLineItem(array(
        'name' => 'Donation',
        'amount' => $amount,
        //'tax_rate' => 0.1,
    )));

    return $payment;
}

function xxx_form($form, &$form_state) {
    $payment = paymentCreate(1, $total, 'xxx_finish_callback');
    
    $form = payment_form_standalone($form, $form_state, $payment);
    $form['#submit'][] = 'xxx_form_submit';
}

function xxx_form_submit($form, &$form_state) {
    // set payment
    if (isset($form_state['values']['payment_status'])) {
        /** @var Payment $payment */
        $payment = $form_state['payment'];
        dpm($payment->pid); // payment item id
    }
}

function xxx_finish_callback(Payment $payment) {
    if(payment_status_is_or_has_ancestor($payment->getStatus()->status, PAYMENT_STATUS_SUCCESS)) {
        drupal_set_message(t('Thank you'));
        drupal_goto('<front>');
    } else {
        drupal_set_message(t('Your payment failed.'));
        drupal_goto('<front>');
    }
}

直接支付

$payment = paymentCreate(1, $total, 'xxx_finish_callback');
entity_save('payment', $payment);
dpm($payment->pid);
$payment->execute(); // payment redirect