public async Task <IHttpActionResult> PostFileAllocationAsync(FileAllocation fileAllocation)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            try
            {
                _fileAllocationService.Add(fileAllocation);
                await _fileAllocationService.CommitAsync();
            }
            catch (DbUpdateException)
            {
                if (await FileAllocationExistsAsync(fileAllocation.Id))
                {
                    return(Conflict());
                }
                else
                {
                    throw;
                }
            }

            return(CreatedAtRoute("ApiRoute", new { id = fileAllocation.Id }, fileAllocation));
        }
        public async Task <IHttpActionResult> PutFileAllocationAsync(Guid id, FileAllocation fileAllocation)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            if (id != fileAllocation.Id)
            {
                return(BadRequest());
            }

            try
            {
                _fileAllocationService.Update(fileAllocation);
                await _fileAllocationService.CommitAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!await FileAllocationExistsAsync(id))
                {
                    return(NotFound());
                }
                else
                {
                    throw;
                }
            }

            return(Ok());
        }