// PUT: api/department
        public async Task<IHttpActionResult> PutDepartments(Department department)
        {
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }
        
            try
            {
                await departmentRepository.EditAsync(department);
            }
            catch (Exception ex)
            {
                if (!DepartmentExists(department.DepartmentId))
                {
                    return NotFound();
                }
                else
                {
                    throw ex;
                }
            }

            return Ok(department);
        }
        // POST: api/hotels/
        public async Task<IHttpActionResult> PostDepartment(Department department)
        {
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            await departmentRepository.InsertAsync(department);

            return Ok("The department has been inserted");
        }