Merge pull request #8 from pronamic/7-php-warning-invalid-argument-su…

…pplied-for-foreach-when-enriching-payment-methods

Check `Services` property before using it.

src/Gateway.php

@@ -138,20 +138,22 @@ private function maybe_enrich_payment_methods() {
 			$payment_method->set_status( 'inactive' );
 		}
 
-		foreach ( $buckaroo_transaction_specifications->Services as $service ) {
-			$payment_method_id = PaymentMethods::from_buckaroo_to_pronamic( $service->Name );
+		if ( null !== $buckaroo_transaction_specifications->Services ) {
+			foreach ( $buckaroo_transaction_specifications->Services as $service ) {
+				$payment_method_id = PaymentMethods::from_buckaroo_to_pronamic( $service->Name );
 
-			if ( null === $payment_method_id ) {
-				continue;
-			}
+				if ( null === $payment_method_id ) {
+					continue;
+				}
 
-			$payment_method = $this->get_payment_method( $payment_method_id );
+				$payment_method = $this->get_payment_method( $payment_method_id );
 
-			if ( null === $payment_method ) {
-				continue;
-			}
+				if ( null === $payment_method ) {
+					continue;
+				}
 
-			$payment_method->set_status( 'active' );
+				$payment_method->set_status( 'active' );
+			}
 		}
 
 		/**