Rock.Model.PersonAliasService.Get C# (CSharp) 메소드

        public override PersonAlias Get( Guid guid )
        {
            return Queryable( "Person" ).FirstOrDefault( t => t.Guid == guid );
        }

        private int? AddRegistrantToGroup( RegistrationRegistrant registrant )
        {
            if ( registrant.PersonAliasId.HasValue &&
                registrant.Registration != null &&
                registrant.Registration.Group != null &&
                registrant.Registration.Group.GroupType != null && _template != null )
            {
                var group = registrant.Registration.Group;

                var groupService = new GroupService( _rockContext );
                var personAliasService = new PersonAliasService( _rockContext );
                var groupMemberService = new GroupMemberService( _rockContext );

                var personAlias = personAliasService.Get( registrant.PersonAliasId.Value );
                GroupMember groupMember = group.Members.Where( m => m.PersonId == personAlias.PersonId ).FirstOrDefault();
                if ( groupMember == null )
                {
                    groupMember = new GroupMember();
                    groupMemberService.Add( groupMember );
                    groupMember.GroupId = group.Id;
                    groupMember.PersonId = personAlias.PersonId;

                    if ( _template.GroupTypeId.HasValue &&
                        _template.GroupTypeId == group.GroupTypeId &&
                        _template.GroupMemberRoleId.HasValue )
                    {
                        groupMember.GroupRoleId = _template.GroupMemberRoleId.Value;
                        groupMember.GroupMemberStatus = _template.GroupMemberStatus;
                    }
                    else
                    {
                        if ( group.GroupType.DefaultGroupRoleId.HasValue )
                        {
                            groupMember.GroupRoleId = group.GroupType.DefaultGroupRoleId.Value;
                        }
                        else
                        {
                            groupMember.GroupRoleId = group.GroupType.Roles.Select( r => r.Id ).FirstOrDefault();
                        }
                    }
                }

                groupMember.GroupMemberStatus = GroupMemberStatus.Active;

                _rockContext.SaveChanges();

                return groupMember.Id;
            }

            return (int?)null;
        }