Rock.Model.PersonAliasService.GetByAliasId C# (CSharp) Method

        public virtual PersonAlias GetByAliasId( int aliasPersonId )
        {
            var personAlias = Queryable( "Person" ).Where( a => a.AliasPersonId == aliasPersonId ).FirstOrDefault();
            if ( personAlias != null )
            {
                return personAlias;
            }
            else
            {
                // If the personId is valid, there should be a personAlias with the AliasPersonID equal
                // to that personId.  If there isn't for some reason, create it now.
                var person = new PersonService( (RockContext)this.Context ).Get( aliasPersonId );
                if ( person != null )
                {
                    personAlias = new PersonAlias();
                    personAlias.Guid = Guid.NewGuid();
                    personAlias.AliasPersonId = person.Id;
                    personAlias.AliasPersonGuid = person.Guid;
                    personAlias.PersonId = person.Id;

                    // Use a different context so calling method's changes are not yet saved
                    var rockContext = new RockContext();
                    new PersonAliasService( rockContext ).Add( personAlias );
                    rockContext.SaveChanges();

                    return Get( personAlias.Id );
                }
            }

            return null;
        }

        public void SaveStars(DateTime dt, int paId, decimal starsValue, string note)
        {
            StarsProjectContext starsProjectContext = new StarsProjectContext();
            StarsService starsService = new StarsService(starsProjectContext);
            org.newpointe.Stars.Model.Stars stars = new org.newpointe.Stars.Model.Stars();

            PersonAliasService personAliasService = new PersonAliasService(new RockContext());
            int campusId = personAliasService.GetByAliasId(paId).Person.GetCampus().Id;

            stars.PersonAliasId = paId;
            stars.CampusId = campusId;
            stars.TransactionDateTime = DateTime.Now;
            stars.Value = starsValue;
            stars.Note = note;

            starsService.Add(stars);

            starsProjectContext.SaveChanges();
        }