From 85da187f85c9c289f36a9553947305a053c2b8f2 Mon Sep 17 00:00:00 2001
From: Ingo Schommer <ingo@silverstripe.com>
Date: Fri, 8 Mar 2013 12:35:27 +0100
Subject: [PATCH] API Handle uncaught ValidationException on CMS controller
 execution

This removes the need for a lot of boilerplate code
around DataObject->write() logic, and avoids generic 500 errors
on user-level failures. This should really be a per-project choice,
but at the moment request handling doesn't allow to configure
custom exception handling.
---
 code/LeftAndMain.php | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/code/LeftAndMain.php b/code/LeftAndMain.php
index 96a2b394..f0c6050a 100644
--- a/code/LeftAndMain.php
+++ b/code/LeftAndMain.php
@@ -314,6 +314,15 @@ class LeftAndMain extends Controller {
 		SSViewer::set_theme(null);
 	}
 
+	public function handleRequest(SS_HTTPRequest $request) {
+		try {
+			return parent::handleRequest($request);
+		} catch(ValidationException $e) {
+			// Nicer presentation of model-level validation errors
+			return $this->httpError(403, $e->getResult()->message());
+		}
+	}
+
 	
 	/**
 	 * If this is set to true, the "switchView" context in the