Adding url UrlRule, Controller classes. Support handling of empty res…

…ources

src/Controller.php

@@ -0,0 +1,32 @@
+<?php
+/**
+ * @author Anton Tuyakhov <atuyakhov@gmail.com>
+ */
+
+namespace tuyakhov\jsonapi;
+
+
+use yii\filters\ContentNegotiator;
+use yii\helpers\ArrayHelper;
+use yii\web\Response;
+
+class Controller extends \yii\rest\Controller
+{
+    public $serializer = 'tuyakhov\jsonapi\Serializer';
+
+    /**
+     * @inheritdoc
+     */
+    public function behaviors()
+    {
+        return ArrayHelper::merge(parent::behaviors(), [
+            'contentNegotiator' => [
+                'class' => ContentNegotiator::className(),
+                'formats' => [
+                    'application/vnd.api+json' => Response::FORMAT_JSON,
+                ],
+            ]
+        ]);
+    }
+
+}

src/JsonApiResponseFormatter.php

@@ -8,6 +8,7 @@
 use yii\base\Component;
 use yii\helpers\ArrayHelper;
 use yii\helpers\Json;
+use yii\helpers\Url;
 use yii\web\ErrorHandler;
 use yii\web\Response;
 use yii\web\ResponseFormatterInterface;
@@ -52,11 +53,17 @@ class JsonApiResponseFormatter extends Component implements ResponseFormatterInt
     public function format($response)
     {
         $response->getHeaders()->set('Content-Type', 'application/vnd.api+json; charset=UTF-8');
+        $apiDocument = [
+            'data' => $response->data,
+            'links' => [
+                'self' => Url::current([], true)
+            ]
+        ];
+        $options = $this->encodeOptions;
+        if ($this->prettyPrint) {
+            $options |= JSON_PRETTY_PRINT;
+        }
         if ($response->data !== null) {
-            $options = $this->encodeOptions;
-            if ($this->prettyPrint) {
-                $options |= JSON_PRETTY_PRINT;
-            }
             $apiDocument = $response->data;
             if ($response->isClientError || $response->isServerError) {
                 if (ArrayHelper::isAssociative($response->data)) {
@@ -76,8 +83,7 @@ public function format($response)
                 }
                 $apiDocument = ['errors' => $formattedErrors];
             }
-
-            $response->content = Json::encode($apiDocument, $options);
         }
+        $response->content = Json::encode($apiDocument, $options);
     }
 }

src/UrlRule.php

@@ -0,0 +1,32 @@
+<?php
+/**
+ * @author Anton Tuyakhov <atuyakhov@gmail.com>
+ */
+
+namespace tuyakhov\jsonapi;
+
+
+/**
+ * UrlRule is provided to simplify the creation of URL rules for JSON API support.
+ * @package tuyakhov\jsonapi
+ */
+class UrlRule extends \yii\rest\UrlRule
+{
+    /**
+     * @inheritdoc
+     */
+    public function init()
+    {
+        $this->tokens = array_merge($this->tokens, array_merge([
+            '{relationship}' => '<name:\w+>'
+        ]));
+        $this->patterns = array_merge($this->patterns, [
+            'DELETE {id}/relationships/{relationship}' => 'delete-relationship',
+            'POST,PATCH {id}/relationships/{relationship}' => 'update-relationship',
+            'GET {id}/{relationship}' => 'view-related',
+            '{id}/{relationship}' => 'options'
+        ]);
+        parent::init();
+    }
+
+}

tests/JsonApiResponseFormatterTest.php

@@ -8,6 +8,7 @@
 use tuyakhov\jsonapi\JsonApiResponseFormatter;
 use tuyakhov\jsonapi\Serializer;
 use tuyakhov\jsonapi\tests\data\ResourceModel;
+use yii\base\Controller;
 use yii\helpers\Json;
 use yii\web\Response;
 use yii\web\ServerErrorHttpException;
@@ -16,6 +17,7 @@ class JsonApiResponseFormatterTest extends TestCase
 {
     public function testFormatException()
     {
+        \Yii::$app->controller = new Controller('test', \Yii::$app);
         $formatter = new JsonApiResponseFormatter();
         $exception = new ServerErrorHttpException('Server error');
         $response = new Response();
@@ -42,6 +44,7 @@ public function testFormatException()
 
     public function testFormModelError()
     {
+        \Yii::$app->controller = new Controller('test', \Yii::$app);
         $formatter = new JsonApiResponseFormatter();
         $exception = new ServerErrorHttpException('Server error');
         $response = new Response();

tests/actions/UpdateActionTest.php

@@ -1,9 +1,6 @@
 <?php
 /**
- * Created by PhpStorm.
- * User: anton
- * Date: 08/03/2017
- * Time: 19:07
+ * @author Anton Tuyakhov <atuyakhov@gmail.com>
  */
 
 namespace tuyakhov\jsonapi\tests\actions;