public IHttpActionResult PostDonorContract(DonorContract donorContract)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            db.DonorContracts.Add(donorContract);

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateException)
            {
                if (DonorContractExists(donorContract.ContractId))
                {
                    return(Conflict());
                }
                else
                {
                    throw;
                }
            }

            return(CreatedAtRoute("DefaultApi", new { id = donorContract.ContractId }, donorContract));
        }
        public IHttpActionResult PutDonorContract(int id, DonorContract donorContract)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            if (id != donorContract.ContractId)
            {
                return(BadRequest());
            }

            db.Entry(donorContract).State = EntityState.Modified;

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!DonorContractExists(id))
                {
                    return(NotFound());
                }
                else
                {
                    throw;
                }
            }

            return(StatusCode(HttpStatusCode.NoContent));
        }
        public IHttpActionResult GetDonorContract(int id)
        {
            DonorContract donorContract = db.DonorContracts.Find(id);

            if (donorContract == null)
            {
                return(NotFound());
            }

            return(Ok(donorContract));
        }
        public IHttpActionResult DeleteDonorContract(int id)
        {
            DonorContract donorContract = db.DonorContracts.Find(id);

            if (donorContract == null)
            {
                return(NotFound());
            }

            db.DonorContracts.Remove(donorContract);
            db.SaveChanges();

            return(Ok(donorContract));
        }