Helper method to check for an order gateway

changelog.txt

@@ -1,6 +1,7 @@
 *** Changelog ***
 
 = 9.9.0 - xxxx-xx-xx =
+* Dev - Introduces a new helper method to identify Stripe orders
 * Fix - Removes the credit card payment method requirement for the Optimized Checkout feature
 * Fix - Payment method test instructions not showing up for the Optimized Checkout payment element
 * Add - Includes a new notice to highlight the Optimized Checkout feature above the payment methods list in the Stripe settings page

includes/class-wc-stripe-helper.php

@@ -2003,4 +2003,14 @@ public static function is_connected( $mode = null ) {
 			return isset( $options['publishable_key'], $options['secret_key'] ) && trim( $options['publishable_key'] ) && trim( $options['secret_key'] );
 		}
 	}
+
+	/**
+	 * Checks if the order is using a Stripe payment method.
+	 *
+	 * @param $order WC_Order The order to check.
+	 * @return bool
+	 */
+	public static function is_stripe_gateway_order( $order ) {
+		return WC_Gateway_Stripe::ID === substr( (string) $order->get_payment_method(), 0, 6 );
+	}
 }

includes/class-wc-stripe-order-handler.php

@@ -471,7 +471,7 @@ public function prevent_cancelling_orders_awaiting_action( $cancel_order, $order
 		}
 
 		// Bail if payment method is not stripe or `stripe_{apm_method}` or doesn't have an intent yet.
-		if ( substr( (string) $order->get_payment_method(), 0, 6 ) !== 'stripe' || ! $this->get_intent_from_order( $order ) ) {
+		if ( ! WC_Stripe_Helper::is_stripe_gateway_order( $order ) || ! $this->get_intent_from_order( $order ) ) {
 			return $cancel_order;
 		}
 

includes/class-wc-stripe-webhook-handler.php

@@ -735,7 +735,7 @@ public function process_webhook_refund( $notification ) {
 
 		$order_id = $order->get_id();
 
-		if ( 'stripe' === substr( (string) $order->get_payment_method(), 0, 6 ) ) {
+		if ( WC_Stripe_Helper::is_stripe_gateway_order( $order ) ) {
 			$charge     = $order->get_transaction_id();
 			$captured   = $order->get_meta( '_stripe_charge_captured' );
 			$refund_id  = $order->get_meta( '_stripe_refund_id' );
@@ -821,7 +821,7 @@ public function process_webhook_refund_updated( $notification ) {
 
 		$order_id = $order->get_id();
 
-		if ( 'stripe' === substr( (string) $order->get_payment_method(), 0, 6 ) ) {
+		if ( WC_Stripe_Helper::is_stripe_gateway_order( $order ) ) {
 			$charge     = $order->get_transaction_id();
 			$refund_id  = $order->get_meta( '_stripe_refund_id' );
 			$currency   = $order->get_currency();

includes/compat/class-wc-stripe-subscriptions-helper.php

@@ -151,7 +151,7 @@ public static function is_subscription_payment_method_detached( $subscription )
 			return false;
 		}
 
-		if ( 'stripe' !== substr( (string) $subscription->get_payment_method(), 0, 6 ) ) {
+		if ( ! WC_Stripe_Helper::is_stripe_gateway_order( $subscription ) ) {
 			// If the payment method is not a Stripe method, we don't need to check further.
 			return false;
 		}

readme.txt

@@ -111,6 +111,7 @@ If you get stuck, you can ask for help in the [Plugin Forum](https://wordpress.o
 == Changelog ==
 
 = 9.9.0 - xxxx-xx-xx =
+* Dev - Introduces a new helper method to identify Stripe orders
 * Fix - Removes the credit card payment method requirement for the Optimized Checkout feature
 * Fix - Payment method test instructions not showing up for the Optimized Checkout payment element
 * Add - Includes a new notice to highlight the Optimized Checkout feature above the payment methods list in the Stripe settings page

tests/phpunit/WC_Stripe_Helper_Test.php

@@ -895,4 +895,25 @@ public function is_webhook_url_provider() {
 			'webhook URL with extra parameters should match'           => [ 'https://example.com/test/?wc-api=wc_stripe&foo=bar', 'https://example.com/test/?wc-api=wc_stripe', true ],
 		];
 	}
+
+	/**
+	 * Tests for `is_stripe_gateway_order`.
+	 *
+	 * @return void
+	 */
+	public function test_is_stripe_gateway_order() {
+		// Test with a Stripe order (Klarna).
+		$order = WC_Helper_Order::create_order();
+		$order->set_payment_method( 'stripe_klarna' );
+		$this->assertTrue( WC_Stripe_Helper::is_stripe_gateway_order( $order ) );
+
+		// Test with a non-Stripe order.
+		$order = WC_Helper_Order::create_order();
+		$order->set_payment_method( 'cod' );
+		$this->assertFalse( WC_Stripe_Helper::is_stripe_gateway_order( $order ) );
+
+		// Test with an empty order.
+		$order = new WC_Order();
+		$this->assertFalse( WC_Stripe_Helper::is_stripe_gateway_order( $order ) );
+	}
 }