Cleanup exception handling

You're going to love this @joecohens and @jbrooksuk :)

app/Exceptions/Handler.php

@@ -11,10 +11,7 @@
 
 namespace CachetHQ\Cachet\Exceptions;
 
-use Exception;
 use GrahamCampbell\Exceptions\ExceptionHandler;
-use Illuminate\Database\Eloquent\ModelNotFoundException;
-use Illuminate\Support\Facades\Response;
 use Symfony\Component\HttpKernel\Exception\HttpNotFoundException;
 
 class Handler extends ExceptionHandler
@@ -27,21 +24,4 @@ class Handler extends ExceptionHandler
     protected $dontReport = [
         HttpNotFoundException::class,
     ];
-
-    /**
-     * Render an exception into an HTTP response.
-     *
-     * @param \Illuminate\Http\Request $request
-     * @param \Exception               $e
-     *
-     * @return \Illuminate\Http\Response
-     */
-    public function render($request, Exception $e)
-    {
-        if ($e instanceof ModelNotFoundException) {
-            $e = new HttpNotFoundException('Resource not found');
-        }
-
-        return parent::render($request, $e);
-    }
 }

app/Exceptions/Transformers/ModelNotFoundTransformer.php

@@ -0,0 +1,41 @@
+<?php
+
+/*
+ * This file is part of Cachet.
+ *
+ * (c) Alt Three Services Limited
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CachetHQ\Cachet\Exceptions\Transformers;
+
+use Exception;
+use GrahamCampbell\Exceptions\Transformers\TransformerInterface;
+use Illuminate\Database\Eloquent\ModelNotFoundException;
+use Symfony\Component\HttpKernel\Exception\HttpNotFoundException;
+
+/**
+ * This is the model not found transformer class.
+ *
+ * @author Graham Campbell <graham@alt-three.com>
+ */
+class ModelNotFoundTransformer implements TransformerInterface
+{
+    /**
+     * Transform the provided exception.
+     *
+     * @param \Exception $exception
+     *
+     * @return \Exception
+     */
+    public function transform(Exception $exception)
+    {
+        if ($exception instanceof ModelNotFoundException) {
+            $exception = new HttpNotFoundException('Resource not found');
+        }
+
+        return $exception;
+    }
+}

config/exceptions.php

@@ -11,6 +11,25 @@
 
 return [
 
+    /*
+    |--------------------------------------------------------------------------
+    | Exception Transformers
+    |--------------------------------------------------------------------------
+    |
+    | Here are each of the exception transformers setup for your application.
+    |
+    | This allows you to turn your exceptions into other exceptions such as
+    | http exceptions for perfect results when passed to the displayers. Note
+    | that this list is processed in order and subsequent transformers can
+    | still modify the results of previous ones if required.
+    |
+    */
+
+    'transformers' => [
+        'GrahamCampbell\Exceptions\Transformers\CsrfTransformer',
+        'CachetHQ\Cachet\Exceptions\Transformers\ModelNotFoundTransformer'
+    ],
+
     /*
     |--------------------------------------------------------------------------
     | Exception Displayers
@@ -30,6 +49,7 @@ return [
         'GrahamCampbell\Exceptions\Displayers\DebugDisplayer',
         'GrahamCampbell\Exceptions\Displayers\HtmlDisplayer',
         'GrahamCampbell\Exceptions\Displayers\JsonDisplayer',
+        'GrahamCampbell\Exceptions\Displayers\JsonApiDisplayer',
     ],
 
     /*