silverstripe / silverstripe-forum

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

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

            if ($member) {

                $form->addErrorMessage(

                    "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()

        // person who is editing their profile - if so, throw an error

        $existingMember = DataObject::get_one('Member', "\"Email\" = '$SQL_email'");

        if ($existingMember) {

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

                $form->addErrorMessage(

                    'Blurb',

                    _t(

                        'ForumMemberProfile.EMAILEXISTS',

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

                    ),

                    'bad'

                );

                return $this->redirectBack();

            }

        }