feat(Products): add getBySku method

Author: Jens Schulze

src/Model/Product/ProductData.php

@@ -64,4 +64,17 @@ public function getVariantById($variantId)
 
         return $this->getVariants()->getById($variantId);
     }
+
+    /**
+     * @param $sku
+     * @return ProductVariant
+     */
+    public function getVariantBySku($sku)
+    {
+        if ($sku == $this->getMasterVariant()->getSku()) {
+            return $this->getMasterVariant();
+        }
+
+        return $this->getVariants()->getBySku($sku);
+    }
 }

src/Model/Product/ProductProjection.php

@@ -97,4 +97,17 @@ public function getVariantById($variantId)
 
         return $this->getVariants()->getById($variantId);
     }
+
+    /**
+     * @param $sku
+     * @return ProductVariant
+     */
+    public function getVariantBySku($sku)
+    {
+        if ($sku == $this->getMasterVariant()->getSku()) {
+            return $this->getMasterVariant();
+        }
+
+        return $this->getVariants()->getBySku($sku);
+    }
 }

src/Model/Product/ProductVariantCollection.php

@@ -16,16 +16,20 @@
 class ProductVariantCollection extends Collection
 {
     const ID = 'id';
+    const SKU = 'sku';
     protected $type = '\Commercetools\Core\Model\Product\ProductVariant';
 
     protected function indexRow($offset, $row)
     {
         if ($row instanceof ProductVariant) {
             $id = $row->getId();
+            $sku = $row->getSku();
         } else {
             $id = $row[static::ID];
+            $sku = $row[static::SKU];
         }
         $this->addToIndex(static::ID, $offset, $id);
+        $this->addToIndex(static::SKU, $offset, $sku);
     }
 
     /**
@@ -36,4 +40,13 @@ public function getById($id)
     {
         return $this->getBy(static::ID, $id);
     }
+
+    /**
+     * @param $id
+     * @return ProductVariant
+     */
+    public function getBySku($id)
+    {
+        return $this->getBy(static::SKU, $id);
+    }
 }