public Department Add(Department department)
        {
            department.Company = _context.Companies.Find(_companyId);
            department = _context.Departments.Add(department);

            _context.SaveChanges();

            return department;
        }
        public Department Update(Department department)
        {
            Department departmentToUpdate = _context.Departments.Find(department.Id);

            departmentToUpdate.Name = department.Name;

            _context.SaveChanges();

            return department;
        }