Add trait to validate unrecognised parameters.

lindyhopchris · lindyhopchris · commit c664222144e2 · 2015-10-11T07:17:40.000+01:00
diff --git a/src/Http/Controllers/ValidatesParametersTrait.php b/src/Http/Controllers/ValidatesParametersTrait.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace CloudCreativity\JsonApi\Http\Controllers;
+
+use CloudCreativity\JsonApi\Error\ThrowableError;
+use Illuminate\Support\Facades\Validator;
+use Neomerx\JsonApi\Contracts\Parameters\ParametersInterface;
+
+trait ValidatesParametersTrait
+{
+
+    /**
+     * @return ParametersInterface
+     */
+    abstract public function getParameters();
+
+    /**
+     * @param array $rules
+     * @param array $messages
+     * @param $errorMessage
+     * @return array
+     */
+    public function getUnrecognizedParameters(array $rules = [], array $messages = [], $errorMessage = null)
+    {
+        $params = (array) $this->getParameters()->getUnrecognizedParameters();
+
+        if (empty($rules)) {
+            return $params;
+        }
+
+        /** @var \Illuminate\Contracts\Validation\Validator $validator */
+        $validator = Validator::make($params, $rules, $messages);
+
+        if ($validator->fails()) {
+            $errorMessage = $errorMessage ?: 'Invalid Query Parameters';
+            throw new ThrowableError($errorMessage, 400);
+        }
+
+        return $params;
+    }
+}
