PayPal Component

Installation

Simplest installation is using composer:

$ composer require seberm/paypal-component

or manually you can edit composer.json:

"require": {
        "seberm/paypal-component": "1.0.*"
}

Configuration

A) Using DI Extension (Nette 2.1+)

Add following lines into your config.neon file.

parameters: ...

---------------------------
paypal:
    api:
       username: 'seberm_1332081338_biz_api1.gmail.com'
       password: '1332081363'
       signature: 'AWiH1IO0zFZrEQbbn0JwDZHbWukIAebmYjpOylRCqBGGgztea2bku.N4'
    sandbox: true # default is false

extensions:
    paypal: Seberm\DI\PayPalExtension
---------------------------

php:
    date.timezone: Europe/Prague
    ...

More about DI container extensions you can find here: https://doc.nette.org/en/2.3/di-extensions

B) Manually throught factories

Alternatively you can configure component via factories.

parameters:
    paypal:
        api:
            username: 'seberm_1332081338_biz_api1.gmail.com'
            password: '1332081363'
            signature: 'AWiH1IO0zFZrEQbbn0JwDZHbWukIAebmYjpOylRCqBGGgztea2bku.N4'
        sandbox: true

factories:
    paypalOrderButton:
        implement: Seberm\Components\PayPal\Buttons\IOrderFactory
        setup:
            - setCredentials(%paypal.api%)
            - setSandBox(%paypal.sandbox%)

Example of a Presenter

Firstly, you have to get IOrderFactory object.

Getting IOrderFactory using DI extensions (method A)

/** @var \Seberm\Components\PayPal\Buttons\IOrderFactory @inject */
public $factory;

Getting IOrderFactory using nette factories (method B)

/** @var \Seberm\Components\PayPal\Buttons\IOrderFactory $factory */
public $factory;

/**
 * @param \Seberm\Components\PayPal\Buttons\IOrderFactory $factory
 */
public function injectFactory(\Seberm\Components\PayPal\Buttons\IOrderFactory $factory)
{
    $this->factory = $factory;
}

Following code will be the same for both methods.

/** @var \Seberm\Components\PayPal\Buttons\Order */
private $orderButton;

public function startup()
{
    parent::startup();

    $this->orderButton = $this->factory->create();
    $this->orderButton->setSessionSection($this->session->getSection('paypal'));
    $this->orderButton->onSuccessPayment[] = array($this, 'successPayment');
}

/**
 * Creates new button control. After that you can load this control in template
 * via {control paypalButton}.
 * @return Seberm\Components\PayPal\Buttons\Order
 */
protected function createComponentPaypalButton()
{
    $control = $this->orderButton;
    $control->setCurrencyCode(\Seberm\PayPal\API\API::CURRENCY_EURO);
    $control->onConfirmation[] = array($this, 'confirmOrder');
    $control->onError[] = array($this, 'errorOccurred');
    $control->onCancel[] = array($this, 'canceled');

    // It is possible to set shipping
    $button->shipping = 4.3;

    // or set a tax
    $button->tax = 3.1;

    $price = 56; // In Euro in this example

    $control->addItemToCart('Product A', 'A - Product description', $price);
    $control->addItemToCart('Product B', 'B - Product description', 123);

    return $control;
}

Don't forget to define callback methods

This method is called after successful confirmation. It has one argument $data.

public function successPayment($data) {
    /**
     * Here you can proccess information about user. For example save him to the
     * database...
     */

     $payerID = $data->payerID;
     $firstName = $data->firstName;
     $lastName = $data->lastName;
     $email = $data->email;

     // See dump($data);
}

Following method is called if some error occures (for example error in communication). It receives an array of errors.

public function errorOccurred($errors)  { ... }

// It is called if payment inicialization succeeds
public function confirmOrder($data) {
    /**
     * Here you can do some checks of the order data. If everything is ok,
     * you can confirm the order with confirmExpressCheckout() method.
     */
    ...
    $this->orderButton->confirmExpressCheckout();
}

public function canceled($data)       { ... } // Called if user cancels his order

Adding PayPal button to a template

Add following control macro where you want to have your PayPal button.

{control paypalButton}