Added hasItems and getItems methods to the Payable interface

Changelog.md

@@ -137,6 +137,8 @@
     - `getPayableRemoteId()`
     - `setPayableRemoteId()`
     - `findByPayableRemoteId()`
+    - `hasItems()`
+    - `getItems()`
 - BC: The return type of the `getNumber()` method of the Order interface is no longer nullable
 - BC: Added the `getCalculator()` & `estimate()` methods to the `ShippingMethod` interface
 - BC: The `Channel` interface extends the `Configurable` interface

src/Contracts/Changelog.md

@@ -21,6 +21,8 @@
   - `getPayableRemoteId()`
   - `setPayableRemoteId()`
   - `findByPayableRemoteId()`
+  - `hasItems()`
+  - `getItems()`
 - Added the nette/schema package requirement (v1.2.5+)
 
 ## 3.x Series

src/Contracts/Payable.php

@@ -14,6 +14,8 @@
 
 namespace Vanilo\Contracts;
 
+use Traversable;
+
 interface Payable
 {
     public function getPayableId(): string;
@@ -34,6 +36,10 @@ public function setPayableRemoteId(string $remoteId): void;
 
     public static function findByPayableRemoteId(string $remoteId): ?Payable;
 
+    public function hasItems(): bool;
+
+    public function getItems(): Traversable;
+
     /** The human readable representation, eg.: "Order no. ABC-123" */
     public function getTitle(): string;
 }

src/Order/Models/Order.php

@@ -121,6 +121,11 @@ public function getLanguage(): ?string
         return $this->language;
     }
 
+    public function hasItems(): bool
+    {
+        return $this->items->isNotEmpty();
+    }
+
     public function getItems(): Traversable
     {
         return $this->items;

src/Payment/Tests/Examples/Order.php

@@ -14,7 +14,9 @@
 
 namespace Vanilo\Payment\Tests\Examples;
 
+use ArrayIterator;
 use Illuminate\Database\Eloquent\Model;
+use Traversable;
 use Vanilo\Contracts\Billpayer;
 use Vanilo\Contracts\Payable;
 
@@ -52,6 +54,17 @@ public function getBillpayer(): ?Billpayer
         return new Customer();
     }
 
+    public function hasItems(): bool
+    {
+        return false;
+    }
+
+    public function getItems(): Traversable
+    {
+        return new ArrayIterator([]);
+    }
+
+
     public function getNumber(): string
     {
         return (string) $this->id;