[HttpKernel] added logging when an inline fragment cannot be rendered and ignore_errors is on

src/Symfony/Bundle/FrameworkBundle/Resources/config/fragment_renderer.xml

@@ -22,6 +22,7 @@
         <service id="fragment.renderer.inline" class="%fragment.renderer.inline.class%">
             <tag name="kernel.fragment_renderer" />
             <argument type="service" id="http_kernel" />
+            <argument type="service" id="event_dispatcher" />
             <call method="setFragmentPath"><argument>%fragment.path%</argument></call>
         </service>
 

src/Symfony/Component/HttpKernel/Fragment/InlineFragmentRenderer.php

@@ -15,6 +15,9 @@ use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\HttpKernelInterface;
 use Symfony\Component\HttpKernel\Controller\ControllerReference;
+use Symfony\Component\HttpKernel\KernelEvents;
+use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 
 /**
  * Implements the inline rendering strategy where the Request is rendered by the current HTTP kernel.
@@ -24,15 +27,17 @@ use Symfony\Component\HttpKernel\Controller\ControllerReference;
 class InlineFragmentRenderer extends RoutableFragmentRenderer
 {
     private $kernel;
+    private $dispatcher;
 
     /**
      * Constructor.
      *
      * @param HttpKernelInterface $kernel A HttpKernelInterface instance
      */
-    public function __construct(HttpKernelInterface $kernel)
+    public function __construct(HttpKernelInterface $kernel, EventDispatcherInterface $dispatcher = null)
     {
         $this->kernel = $kernel;
+        $this->dispatcher = $dispatcher;
     }
 
     /**
@@ -61,6 +66,14 @@ class InlineFragmentRenderer extends RoutableFragmentRenderer
         try {
             return $this->kernel->handle($subRequest, HttpKernelInterface::SUB_REQUEST, false);
         } catch (\Exception $e) {
+            // we dispatch the exception event to trigger the logging
+            // the response that comes back is simply ignored
+            if (isset($options['ignore_errors']) && $options['ignore_errors'] && $this->dispatcher) {
+                $event = new GetResponseForExceptionEvent($this->kernel, $request, HttpKernelInterface::SUB_REQUEST, $e);
+
+                $this->dispatcher->dispatch(KernelEvents::EXCEPTION, $event);
+            }
+
             // let's clean up the output buffers that were created by the sub-request
             while (ob_get_level() > $level) {
                 ob_get_clean();

src/Symfony/Component/HttpKernel/Tests/Fragment/InlineFragmentRendererTest.php

@@ -14,6 +14,7 @@ namespace Symfony\Component\HttpKernel\Fragment\Tests\FragmentRenderer;
 use Symfony\Component\HttpKernel\Controller\ControllerReference;
 use Symfony\Component\HttpKernel\HttpKernel;
 use Symfony\Component\HttpKernel\Fragment\InlineFragmentRenderer;
+use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\EventDispatcher\EventDispatcher;
@@ -75,14 +76,20 @@ class InlineFragmentRendererTest extends \PHPUnit_Framework_TestCase
      */
     public function testRenderExceptionNoIgnoreErrors()
     {
-        $strategy = new InlineFragmentRenderer($this->getKernel($this->throwException(new \RuntimeException('foo'))));
+        $dispatcher = $this->getMock('Symfony\Component\EventDispatcher\EventDispatcherInterface');
+        $dispatcher->expects($this->never())->method('dispatch');
+
+        $strategy = new InlineFragmentRenderer($this->getKernel($this->throwException(new \RuntimeException('foo'))), $dispatcher);
 
         $this->assertEquals('foo', $strategy->render('/', Request::create('/'))->getContent());
     }
 
     public function testRenderExceptionIgnoreErrors()
     {
-        $strategy = new InlineFragmentRenderer($this->getKernel($this->throwException(new \RuntimeException('foo'))));
+        $dispatcher = $this->getMock('Symfony\Component\EventDispatcher\EventDispatcherInterface');
+        $dispatcher->expects($this->once())->method('dispatch')->with(KernelEvents::EXCEPTION);
+
+        $strategy = new InlineFragmentRenderer($this->getKernel($this->throwException(new \RuntimeException('foo'))), $dispatcher);
 
         $this->assertEmpty($strategy->render('/', Request::create('/'), array('ignore_errors' => true))->getContent());
     }