From 78c875b02e233d1afec3995d1ef38420dc4d7a8b Mon Sep 17 00:00:00 2001
From: Steve Boyd <emteknetnz@gmail.com>
Date: Tue, 17 May 2022 15:16:08 +1200
Subject: [PATCH] FIX Check current controller has a functional link

---
 src/Model/ElementForm.php | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/Model/ElementForm.php b/src/Model/ElementForm.php
index 78cd3a5..184fe67 100644
--- a/src/Model/ElementForm.php
+++ b/src/Model/ElementForm.php
@@ -7,6 +7,7 @@
 use SilverStripe\Control\Controller;
 use DNADesign\Elemental\Models\BaseElement;
 use DNADesign\ElementalUserForms\Control\ElementFormController;
+use SilverStripe\Control\RequestHandler;
 
 class ElementForm extends BaseElement
 {
@@ -37,10 +38,16 @@ public function Form()
             return $controller->renderWith(UserDefinedFormController::class .'_ReceivedFormSubmission');
         }
 
+        // $current may not have a functional Link(), e.g. QueuedTaskRunner during solr reindex
+        // surpress E_USER_WARNING from RequestHandler::Link() if url_segment config missing
+        set_error_handler(fn(int $errno, string $errstr) => true, E_USER_WARNING);
+        $link = $current->Link();
+        restore_error_handler();
+
         $form = $controller->Form();
         $form->setFormAction(
             Controller::join_links(
-                $current->Link(),
+                $link,
                 'element',
                 $this->owner->ID,
                 'Form'