This extension adds shopping cart for Yii framework 2.0
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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.
- 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 $this->id;
}
}If you use the yii2mod\cart\storage\DatabaseStorage as
storageClassthen you need to apply the following migration:
php yii migrate --migrationPath=@vendor/yii2mod/yii2-cart/migrationsOperations with the shopping cart are very straightforward when using a models that implement one of the two cart interfaces.
The cart object can be accessed under \Yii::$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();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'
]
]); ?>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)
}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);
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