public GroupDTO GetGroupDetailsByInvitationGuid(string token, string invitationGuid)
{
var invitation = _invitationRepository.GetOpenInvitation(invitationGuid);
var group = Mapper.Map <MpGroup, GroupDTO>(_mpGroupRepository.GetSmallGroupDetailsById(invitation.SourceId));
var groups = new List <GroupDTO> {
@group
};
GetGroupAttributes(token, groups);
GetGroupParticipants(groups);
return(groups[0]);
}