OpenCart "order again" functionality in the order history - php

Question

I am interested in implementing an "order again" function for OpenCart, with a button located in the order history list under account/order. This button would take all this particular order's products (and its associated options) and add them all back to the cart.
The following code I have allows me to loop through my product as well as its respective product options depending on the order ID.
$products = $this->model_account_order->getOrderProducts(
$this->request->get['order_id']
);
foreach ($products as $product) {
$options = $this->model_account_order->getOrderOptions(
$this->request->get['order_id'],
$product['order_product_id']
);
foreach ($product['option'] as $option) {
// Implement custom logic
}
}
I have no issues at the moment to get the products that I have already ordered. What I do not understand what to do and need help on is - how do I use this [if this is the way to add items to cart] to add the items back to the cart?

Answer 1

By knowing the product ID and quantities (and options if any) you can just call:
$this->cart->add($product_id, $quantity, $options); // use array() instead of $options if there are none
for each product respectively. $options is an array, to see what structure it has to have look into the AJAX request when adding a product with options to the cart (I think it's single array with product_option_id as key and option_value as value).

Answer 2

Try this
$this->cart->add($product_id, $quantity, $options);

Answer 3

This is actually already implemented on the customer side of the cart. Here's the code contained in the /catalog/controller/account/order.php that does exactly what you want (1.5.5.1 in this particular case)
if (isset($this->request->get['order_id'])) {
$order_info = $this->model_account_order->getOrder($this->request->get['order_id']);
if ($order_info) {
$order_products = $this->model_account_order->getOrderProducts($this->request->get['order_id']);
foreach ($order_products as $order_product) {
$option_data = array();
$order_options = $this->model_account_order->getOrderOptions($this->request->get['order_id'], $order_product['order_product_id']);
foreach ($order_options as $order_option) {
if ($order_option['type'] == 'select' || $order_option['type'] == 'radio') {
$option_data[$order_option['product_option_id']] = $order_option['product_option_value_id'];
} elseif ($order_option['type'] == 'checkbox') {
$option_data[$order_option['product_option_id']][] = $order_option['product_option_value_id'];
} elseif ($order_option['type'] == 'text' || $order_option['type'] == 'textarea' || $order_option['type'] == 'date' || $order_option['type'] == 'datetime' || $order_option['type'] == 'time') {
$option_data[$order_option['product_option_id']] = $order_option['value'];
} elseif ($order_option['type'] == 'file') {
$option_data[$order_option['product_option_id']] = $this->encryption->encrypt($order_option['value']);
}
}
$this->session->data['success'] = sprintf($this->language->get('text_success'), $this->request->get['order_id']);
$this->cart->add($order_product['product_id'], $order_product['quantity'], $option_data);
}
$this->redirect($this->url->link('checkout/cart'));
}
}

Answer 4

Upon investigation and posting on the OpenCart website, it turns out reorder is already a functionality in OpenCart, but we never enabled it [or someone disabled it months ago]. We had to renable it by adding a button and attributed the reorder link under /catalog/controller/account/order.php.
We also added some custom logic in our:
if ($order_option['type'] == 'select' || $order_option['type'] == 'radio') {
$option_data[$order_option['product_option_id']] = $order_option['product_option_value_id'];
} elseif ($order_option['type'] == 'checkbox') {
$option_data[$order_option['product_option_id']][] = $order_option['product_option_value_id'];
} elseif ($order_option['type'] == 'text' || $order_option['type'] == 'textarea' || $order_option['type'] == 'date' || $order_option['type'] == 'datetime' || $order_option['type'] == 'time') {
$option_data[$order_option['product_option_id']] = $order_option['value'];
} elseif ($order_option['type'] == 'file') {
$option_data[$order_option['product_option_id']] = $this->encryption->encrypt($order_option['value']);
}
Since we have a custom option type called checkbox+quantity. For the future users, please make sure to add your custom option type logic to this logical statement.
Thanks Jay for pointing this out as well.