I installed newsletter module and it seems to work, but I got following error when I try to create new newsletter:
PHP Fatal error: Call to a member function setTitle() on a non-object in /home/sewer/projects/zmiennicy/silverstripe/newsletter/code/form/gridfield/NewsletterGridFieldDetailForm.php on line 23, referer: http://host4.office.crystalvision.pl/Security/login?BackURL=%2Fadmin%2Fnewsletter%2FNewsletter%2FEditForm%2Ffield%2FNewsletter%2Fitem%2Fnew
Anyone else experieced this, and maybe have solution for this?
The same issue is recorded as an unsolved bug here, https://github.com/silverstripe-labs/silverstripe-newsletter/issues/58 - it mentions that the gridfield better buttons module might be the issue. Currently investigating as I have the same problem I need to resolve.
Thanks, it looks like gridfield better buttons module was issue. Renaming action from save to doSave fixed it, and now it is possible to create new newsletter, although, I don't know if there are other issues.