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<?php
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* WC Data Store.
*
* @since 3.0.0
* @version 3.0.0
* @category Class
* @author WooThemes
*/
class WC_Data_Store {
/**
* Contains an instance of the data store class that we are working with.
*/
private $instance = null;
/**
* Contains an array of default WC supported data stores.
* Format of object name => class name.
* Example: 'product' => 'WC_Product_Data_Store_CPT'
* You can also pass something like product_<type> for product stores and
* that type will be used first when available, if a store is requested like
* this and doesn't exist, then the store would fall back to 'product'.
* Ran through `woocommerce_data_stores`.
*/
private $stores = array(
'coupon' => 'WC_Coupon_Data_Store_CPT',
'customer' => 'WC_Customer_Data_Store',
'customer-download' => 'WC_Customer_Download_Data_Store',
'customer-session' => 'WC_Customer_Data_Store_Session',
'order' => 'WC_Order_Data_Store_CPT',
'order-refund' => 'WC_Order_Refund_Data_Store_CPT',
'order-item' => 'WC_Order_Item_Data_Store',
'order-item-coupon' => 'WC_Order_Item_Coupon_Data_Store',
'order-item-fee' => 'WC_Order_Item_Fee_Data_Store',
'order-item-product' => 'WC_Order_Item_Product_Data_Store',
'order-item-shipping' => 'WC_Order_Item_Shipping_Data_Store',
'order-item-tax' => 'WC_Order_Item_Tax_Data_Store',
'payment-token' => 'WC_Payment_Token_Data_Store',
'product' => 'WC_Product_Data_Store_CPT',
'product-grouped' => 'WC_Product_Grouped_Data_Store_CPT',
'product-variable' => 'WC_Product_Variable_Data_Store_CPT',
'product-variation' => 'WC_Product_Variation_Data_Store_CPT',
'shipping-zone' => 'WC_Shipping_Zone_Data_Store',
);
/**
* Contains the name of the current data store's class name.
*/
private $current_class_name = '';
/**
* The object type this store works with.
* @var string
*/
private $object_type = '';
/**
* Tells WC_Data_Store which object (coupon, product, order, etc)
* store we want to work with.
*
* @param string $object_type Name of object.
*
* @throws Exception
*/
public function __construct( $object_type ) {
$this->object_type = $object_type;
$this->stores = apply_filters( 'woocommerce_data_stores', $this->stores );
// If this object type can't be found, check to see if we can load one
// level up (so if product-type isn't found, we try product).
if ( ! array_key_exists( $object_type, $this->stores ) ) {
$pieces = explode( '-', $object_type );
$object_type = $pieces[0];
}
if ( array_key_exists( $object_type, $this->stores ) ) {
$store = apply_filters( 'woocommerce_' . $object_type . '_data_store', $this->stores[ $object_type ] );
if ( is_object( $store ) ) {
if ( ! $store instanceof WC_Object_Data_Store_Interface ) {
throw new Exception( __( 'Invalid data store.', 'woocommerce' ) );
}
$this->current_class_name = get_class( $store );
$this->instance = $store;
} else {
if ( ! class_exists( $store ) ) {
throw new Exception( __( 'Invalid data store.', 'woocommerce' ) );
}
$this->current_class_name = $store;
$this->instance = new $store;
}
} else {
throw new Exception( __( 'Invalid data store.', 'woocommerce' ) );
}
}
/**
* Only store the object type to avoid serializing the data store instance.
*
* @return array
*/
public function __sleep() {
return array( 'object_type' );
}
/**
* Re-run the constructor with the object type.
*/
public function __wakeup() {
$this->__construct( $this->object_type );
}
/**
* Loads a data store.
*
* @param string $object_type Name of object.
*
* @since 3.0.0
* @return WC_Data_Store
*/
public static function load( $object_type ) {
return new WC_Data_Store( $object_type );
}
/**
* Returns the class name of the current data store.
*
* @since 3.0.0
* @return string
*/
public function get_current_class_name() {
return $this->current_class_name;
}
/**
* Reads an object from the data store.
*
* @since 3.0.0
* @param WC_Data
*/
public function read( &$data ) {
$this->instance->read( $data );
}
/**
* Create an object in the data store.
*
* @since 3.0.0
* @param WC_Data
*/
public function create( &$data ) {
$this->instance->create( $data );
}
/**
* Update an object in the data store.
*
* @since 3.0.0
* @param WC_Data
*/
public function update( &$data ) {
$this->instance->update( $data );
}
/**
* Delete an object from the data store.
*
* @since 3.0.0
* @param WC_Data
* @param array $args Array of args to pass to the delete method.
*/
public function delete( &$data, $args = array() ) {
$this->instance->delete( $data, $args );
}
/**
* Data stores can define additional functions (for example, coupons have
* some helper methods for increasing or decreasing usage). This passes
* through to the instance if that function exists.
*
* @since 3.0.0
*
* @param $method
* @param $parameters
*
* @return mixed
*/
public function __call( $method, $parameters ) {
if ( is_callable( array( $this->instance, $method ) ) ) {
$object = array_shift( $parameters );
return call_user_func_array( array( $this->instance, $method ), array_merge( array( &$object ), $parameters ) );
}
}
}