public PetsEntity[] GetCompanyPets(int id, int clientId = 0)
        {
            List <PetsEntity> arrayOfPetsEntity = new List <PetsEntity>();
            ClientsController controller        = new ClientsController();
            Petz_dbEntities   db = new Petz_dbEntities();

            int[] idsByService = (from s in db.petz_Pet_Scheduling
                                  join a in db.petz_Company_Address on s.company_address_id equals a.company_address_id
                                  where a.company_id == id &&
                                  s.date_delete == null &&
                                  s.client_id == (clientId <= 0 ? s.client_id : clientId)
                                  select s.client_id)
                                 .Distinct()
                                 .ToArray();

            int[] idsByFavorite = db.petz_Client_Company
                                  .Where(x => x.company_id == id &&
                                         x.client_id == (clientId <= 0 ? x.client_id : clientId))
                                  .Select(x => x.client_id)
                                  .Distinct()
                                  .ToArray();
            int[] ids = idsByService.Concat(idsByFavorite)
                        .Distinct()
                        .ToArray();
            foreach (int i in ids)
            {
                arrayOfPetsEntity.AddRange(controller.GetPetsClient(i));
            }

            return(arrayOfPetsEntity.ToArray());
        }