This extension adds shopping cart for Yii framework 2.0
Support us
Does your business depend on our contributions? Reach out and support us on Patreon.
All pledges will be dedicated to allocating workforce on maintenance and new awesome stuff.
Installation
The preferred way to install this extension is through composer.
Either run
php composer.phar require --prefer-dist yii2mod/yii2-cart "*"
or add
"yii2mod/yii2-cart": "*"
to the require section of your composer.json file.
Configuration
- Configure the
cartcomponent:
return [
//....
'components' => [
'cart' => [
'class' => 'yii2mod\cart\Cart',
// you can change default storage class as following:
'storageClass' => [
'class' => 'yii2mod\cart\storage\DatabaseStorage',
// you can also override some properties
'deleteIfEmpty' => true
]
],
]
];
- Create the Product Model that implements an
CartItemInterface:
class ProductModel extends ActiveRecord implements CartItemInterface
{
public function getPrice()
{
return $this->price;
}
public function getLabel()
{
return $this->name;
}
public function getUniqueId()
{
return $this->id;
}
}
If you use the yii2mod\cart\storage\DatabaseStorage as
storageClassthen you need to apply the following migration:
php yii migrate --migrationPath=@vendor/yii2mod/yii2-cart/migrations
Using the shopping cart
Operations with the shopping cart are very straightforward when using a models that implement one of the two cart interfaces.
The cart object can be accessed under \Yii::$app->cart and can be overridden in configuration if you need to customize it.
// access the cart from "cart" subcomponent
$cart = \Yii::$app->cart;
// Product is an AR model implementing CartProductInterface
$product = Product::findOne(1);
// add an item to the cart
$cart->add($product);
// returns the sum of all 'vat' attributes (or return values of getVat()) from all models in the cart.
$totalVat = $cart->getAttributeTotal('vat');
// clear the cart
$cart->clear();
View Cart Items
You can use the CartGrid widget for generate table with cart items as following:
<?php echo \yii2mod\cart\widgets\CartGrid::widget([
// Some widget property maybe need to change.
'cartColumns' => [
'id',
'label',
'price'
]
]); ?>
Items in the cart
Products/items that are added to the cart are serialized/unserialized when saving and loading data from cart storage.
If you are using Active Record models as products/discounts, make sure that you are omitting any unnecessary references from
the serialized data to keep it compact.
// get all items from the cart
$items = $cart->getItems();
// get only products
$items = $cart->getItems(Cart::ITEM_PRODUCT);
// loop through cart items
foreach ($items as $item) {
// access any attribute/method from the model
var_dump($item->getAttributes());
// remove an item from the cart by its ID
$cart->remove($item->uniqueId)
}
Get Number of Products in Cart
You can use the getCount to get count as this example:
// get count of all products in cart:
$items = $cart->getCount();
// get count of Specific Item Type:
$items = $cart->getCount(Cart::ITEM_PRODUCT);