public void UpdateEmployee(Employee employee)
 {
     var employeeToUpdate = Employees.FirstOrDefault(c => c.Id == employee.Id);
     if ( employeeToUpdate != null ) employeeToUpdate.InOffice = employee.InOffice;
 }
 public IHttpActionResult Post(Employee employee)
 {
     _employeeRepository.UpdateEmployee(employee);
     return Ok();
 }