From 38ff0b4fc2507e994ea268b9c2dd800b83a76682 Mon Sep 17 00:00:00 2001
From: Alexander Andrienko <alexander.andrienko@requestum.com>
Date: Wed, 13 Nov 2019 15:30:02 +0200
Subject: [PATCH 1/3] added ability to specify groups in reference

---
 Rest/Metadata/Reference.php                   | 23 +++++++++++++++++++
 .../AttributeExtractionStrategy.php           |  6 +++++
 2 files changed, 29 insertions(+)

diff --git a/Rest/Metadata/Reference.php b/Rest/Metadata/Reference.php
index ce76c4c..9be3d7b 100644
--- a/Rest/Metadata/Reference.php
+++ b/Rest/Metadata/Reference.php
@@ -16,4 +16,27 @@ final class Reference
      * @var string
      */
     public $field = 'id';
+
+    /**
+     * @var string[]
+     */
+    public $groups;
+
+    /**
+     * @param array $data
+     *
+     * @throws InvalidArgumentException
+     */
+    public function __construct(array $data)
+    {
+        $groups = isset($data['groups']) ? (array) $data['groups'] : [];
+
+        foreach ($groups as $group) {
+            if (!\is_string($group)) {
+                throw new InvalidArgumentException(sprintf('Parameter of annotation "%s" must be a string or an array of strings.', \get_class($this)));
+            }
+        }
+
+        $this->groups = $groups;
+    }
 }
\ No newline at end of file
diff --git a/Serializer/Normalizer/AttributeExtractionStrategy.php b/Serializer/Normalizer/AttributeExtractionStrategy.php
index 9030049..d5c2d84 100644
--- a/Serializer/Normalizer/AttributeExtractionStrategy.php
+++ b/Serializer/Normalizer/AttributeExtractionStrategy.php
@@ -65,6 +65,12 @@ public function getValue($object, $attribute, $format = null, array $context = a
 
         $property = $referenceMetadata->field;
 
+        if (isset($context['groups'])) {
+            if (count(array_intersect($context['groups'], $referenceMetadata->groups)) > 0) {
+                return $propertyValue;
+            }
+        }
+
         if ($propertyValue instanceof \Traversable) {
             $value = [];
 

From ab93439c86c6cab74fb6cb107d7c66f95686a7f1 Mon Sep 17 00:00:00 2001
From: Alexander Andrienko
 <57679991+alexander-andrienko-req@users.noreply.github.com>
Date: Wed, 13 Nov 2019 16:34:34 +0200
Subject: [PATCH 2/3] Update Reference.php

---
 Rest/Metadata/Reference.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Rest/Metadata/Reference.php b/Rest/Metadata/Reference.php
index 9be3d7b..94ecebe 100644
--- a/Rest/Metadata/Reference.php
+++ b/Rest/Metadata/Reference.php
@@ -39,4 +39,4 @@ public function __construct(array $data)
 
         $this->groups = $groups;
     }
-}
\ No newline at end of file
+}

From a7ba26c3570f178dfbd5423244f0da0676503abd Mon Sep 17 00:00:00 2001
From: Alexander Andrienko
 <57679991+alexander-andrienko-req@users.noreply.github.com>
Date: Wed, 13 Nov 2019 16:43:07 +0200
Subject: [PATCH 3/3] Update AttributeExtractionStrategy.php

---
 Serializer/Normalizer/AttributeExtractionStrategy.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Serializer/Normalizer/AttributeExtractionStrategy.php b/Serializer/Normalizer/AttributeExtractionStrategy.php
index d5c2d84..64fc290 100644
--- a/Serializer/Normalizer/AttributeExtractionStrategy.php
+++ b/Serializer/Normalizer/AttributeExtractionStrategy.php
@@ -65,7 +65,7 @@ public function getValue($object, $attribute, $format = null, array $context = a
 
         $property = $referenceMetadata->field;
 
-        if (isset($context['groups'])) {
+        if (isset($context['groups']) && is_array($context['groups'])) {
             if (count(array_intersect($context['groups'], $referenceMetadata->groups)) > 0) {
                 return $propertyValue;
             }
@@ -103,4 +103,4 @@ private function isExpand($attribute, $context)
 
         return false;
     }
-}
\ No newline at end of file
+}