def authMergeUserProfileFromRequest(request):
    userProfileRequest = getUserProfile(request)
    if not userProfileRequest:
        return False, 'No user profile from request has been found.'
    username = request.REQUEST.get('username', '').strip()
    if not username:
        return False, 'Vnesite uporabniško ime'
    if userProfileRequest.username == username:
        return True, ('Userprofile with name %s has been found' % username)

    try:
        userProfileLogin = UserProfile.objects.get(username__exact=username)
    except UserProfile.DoesNotExist:
        userProfileRequest.username = username
        userProfileRequest.save()
        return True, ('Anonymous userprofile has a new authenticated name %s' % username)

    if userProfileLogin.udids.count() >= settings.MAX_DEVICES_PER_ACCOUNT:
        return False, 'Prekoračili ste maksimalno število naprav na uporabniški račun (%s)' % settings.MAX_DEVICES_PER_ACCOUNT
    if userProfileRequest.username:     # Transfer just current device (not anonymous user)
        requestUdid = parseUdidFromRequest(request)
        if not requestUdid:
            return False, ''
        for dev in userProfileRequest.udids.all():
            if dev.udid == requestUdid:
                if dev.udid not in [ ud.udid for ud in userProfileLogin.udids.all() ]:
                    dev.userProfile = userProfileRequest
                    dev.save()
                break
    else:
        for dev in userProfileRequest.udids.all():  # There is only one device, since user profile request is anonymous
            dev.userProfile = userProfileLogin
            dev.save()
        userProfileLogin.transferProfileData(userProfileRequest)
        userProfileRequest.delete()
    return True, ''