public async Task UpdateRoleDeparmtents(int roleId, List <RoleInDepartment> models)
{
var old = await _roleInDepartmentService.Get(new RoleInDepartmentGetOptions { RoleId = roleId });
var toDelete = old.Select(o => o.Id).Where(o => !models.Select(du => du.Id).Contains(o)).ToList();
var toUpdate = old.Where(o => models.Select(du => du.Id).Contains(o.Id)).ToList();
var toCreate = models.Where(o => !old.Select(du => du.Id).Contains(o.Id)).ToList();
toCreate.ForEach(o => o.RoleId = roleId);
await _roleInDepartmentService.Delete(toDelete);
await _roleInDepartmentService.Update(toUpdate);
await _roleInDepartmentService.Create(toCreate);
}
