silverstripe / silverstripe-forum

        $forumGroup = Group::get()->filter('Code', 'forum-members')->first();

        if ($member = Member::get()->filter('Email', $data['Email'])->first()) {

            if ($member) {

                $form->setFieldMessage(

                    "Blurb",

                    _t(

                        'ForumMemberProfile.EMAILEXISTS',

                        'Sorry, that email address already exists. Please choose another.'

                    ),

                    "bad"

                );

                // Load errors into session and post back

                Session::set("FormInfo.Form_RegistrationForm.data", $data);

                return $this->redirectBack();

            }

        } elseif ($this->getForumHolder()->OpenIDAvailable() && isset($data['IdentityURL']) && ($member = Member::get()->filter('IdentityURL', $data['IdentityURL'])->first())) {

            $errorMessage = _t(

                'ForumMemberProfile.OPENIDEXISTS',

        /** @var Member $existingMember */

        $existingMember = Member::get()->filter(['Email' => $email]);

        if ($existingMember) {

            if ($existingMember->ID != $member->ID) {

                $form->setFieldMessage(

                    'Blurb',

                    _t(

                        'ForumMemberProfile.EMAILEXISTS',

                        'Sorry, that email address already exists. Please choose another.'

                    ),

                    'bad'

                );

                return $this->redirectBack();

            }

        }

        $nicknameCheck = Member::get()->filter(