From: Magnus Hagander <magnus@hagander.net>
Date: Fri, 19 Jan 2024 10:12:26 +0000 (+0100)
Subject: Show exception when failing to render preview
X-Git-Url: http://git.postgresql.org/gitweb/static/gitweb.js?a=commitdiff_plain;h=2820244cf596223c39917b488cb1428d33b6f5e0;p=pgeu-system.git

Show exception when failing to render preview

Previews are only used in the backend, so showing a more low level error
message there is better than showing nothing at all.
---

diff --git a/postgresqleu/util/backendviews.py b/postgresqleu/util/backendviews.py
index 8be4d1cc..0ab40dd5 100644
--- a/postgresqleu/util/backendviews.py
+++ b/postgresqleu/util/backendviews.py
@@ -31,8 +31,8 @@ def backend_process_form(request, urlname, formclass, id, cancel_url='../', save
 
         try:
             return HttpResponse(formclass.get_dynamic_preview(f, request.GET.get('previewval', ''), id), content_type='text/plain')
-        except Exception:
-            return HttpResponse('', content_type='text/plain')
+        except Exception as e:
+            return HttpResponse('Error getting preview: {}'.format(e), content_type='text/plain')
 
     nopostprocess = False
     newformdata = None