Merge pull request #23663 from danielbitzer/add_get_coupons_method

Add WC_Abstract_Order::get_coupons()

includes/abstracts/abstract-wc-order.php

@@ -730,6 +730,16 @@ abstract class WC_Abstract_Order extends WC_Abstract_Legacy_Order {
 		return apply_filters( 'woocommerce_order_get_items', $items, $this, $types );
 	}
 
+	/**
+	 * Return an array of coupons within this order.
+	 *
+	 * @since  3.7.0
+	 * @return WC_Order_Item_Coupon[]
+	 */
+	public function get_coupons() {
+		return $this->get_items( 'coupon' );
+	}
+
 	/**
 	 * Return an array of fees within this order.
 	 *

tests/unit-tests/order/class-wc-tests-crud-orders.php

@@ -312,6 +312,24 @@ class WC_Tests_CRUD_Orders extends WC_Unit_Test_Case {
 		$this->assertCount( 2, $object->get_items( array( 'line_item', 'fee' ) ) );
 	}
 
+	/**
+	 * Test: get_coupons
+	 */
+	public function test_get_coupons() {
+		$object = new WC_Order();
+		$item   = new WC_Order_Item_Coupon();
+		$item->set_props(
+			array(
+				'code'         => '12345',
+				'discount'     => 10,
+				'discount_tax' => 5,
+			)
+		);
+		$object->add_item( $item );
+		$object->save();
+		$this->assertCount( 1, $object->get_coupons() );
+	}
+
 	/**
 	 * Test: get_fees
 	 */