public virtual IGroup FindGroupByMembership(String userName, String membershipType, Relations relations)
{
IGroup group = null;
DbSession dbSession = null;
try
{
dbSession = OpenSession();
group = implementation.FindGroupByMembership(userName, membershipType, relations, dbSession);
}
catch (Exception t)
{
log.Error("error when finding group by membership type " + membershipType, t);
}
return(group);
}