Extract values when referencing a nested JSON property in getAttribut…

…eFromArray() function. (staudenmeir#52)

src/HasJsonRelationships.php

@@ -41,6 +41,21 @@ public function getAttribute($key)
         return parent::getAttribute($key);
     }
 
+    /**
+     * Get an attribute from the $attributes array.
+     *
+     * @param  string  $key
+     * @return mixed
+     */
+    public function getAttributeFromArray($key)
+    {
+        if (Str::contains($key, '->')) {
+            return $this->getAttributeValue($key);
+        }
+
+        return parent::getAttributeFromArray($key);
+    }
+
     /**
      * Get a plain attribute (not a relationship).
      *