backend/pkg/permission/repository/role_permission.go

263 lines
7.5 KiB
Go

package repository
import (
"backend/pkg/library/mongo"
"backend/pkg/permission/domain"
"backend/pkg/permission/domain/entity"
"backend/pkg/permission/domain/repository"
"context"
"errors"
"time"
"github.com/zeromicro/go-zero/core/stores/cache"
"github.com/zeromicro/go-zero/core/stores/mon"
"go.mongodb.org/mongo-driver/v2/bson"
mongodriver "go.mongodb.org/mongo-driver/v2/mongo"
)
type RolePermissionRepositoryParam struct {
Conf *mongo.Conf
CacheConf cache.CacheConf
DBOpts []mon.Option
CacheOpts []cache.Option
}
type RolePermissionRepository struct {
DB mongo.DocumentDBWithCacheUseCase
}
func NewRolePermissionRepository(param RolePermissionRepositoryParam) repository.RolePermissionRepository {
e := entity.RolePermission{}
documentDB, err := mongo.MustDocumentDBWithCache(
param.Conf,
e.CollectionName(),
param.CacheConf,
param.DBOpts,
param.CacheOpts,
)
if err != nil {
panic(err)
}
return &RolePermissionRepository{
DB: documentDB,
}
}
// Create 建立角色權限關聯
func (repo *RolePermissionRepository) Create(ctx context.Context, roleID int64, permissionIDs []int64) error {
if len(permissionIDs) == 0 {
return nil
}
now := time.Now().Unix()
// 將 int64 轉換為 ObjectID
roleOID := bson.NewObjectIDFromTimestamp(time.Unix(roleID, 0))
// 批量建立角色權限關聯
documents := make([]interface{}, 0, len(permissionIDs))
for _, permissionID := range permissionIDs {
permOID := bson.NewObjectIDFromTimestamp(time.Unix(permissionID, 0))
rp := &entity.RolePermission{
ID: bson.NewObjectID(),
RoleID: roleOID,
PermissionID: permOID,
}
rp.CreateTime = now
rp.UpdateTime = now
documents = append(documents, rp)
}
_, err := repo.DB.GetClient().InsertMany(ctx, documents)
if err != nil {
return err
}
// 清除快取
repo.clearRolePermissionCache(ctx, roleID)
return nil
}
// Update 更新角色權限關聯 (先刪除再建立)
func (repo *RolePermissionRepository) Update(ctx context.Context, roleID int64, permissionIDs []int64) error {
// 先刪除該角色的所有權限關聯
err := repo.Delete(ctx, roleID)
if err != nil {
return err
}
// 再建立新的關聯
return repo.Create(ctx, roleID, permissionIDs)
}
// Delete 刪除角色的所有權限
func (repo *RolePermissionRepository) Delete(ctx context.Context, roleID int64) error {
// 將 int64 轉換為 ObjectID
roleOID := bson.NewObjectIDFromTimestamp(time.Unix(roleID, 0))
filter := bson.M{"role_id": roleOID}
_, err := repo.DB.GetClient().DeleteMany(ctx, filter)
if err != nil {
return err
}
// 清除快取
repo.clearRolePermissionCache(ctx, roleID)
return nil
}
// GetByRoleID 取得角色的所有權限關聯
func (repo *RolePermissionRepository) GetByRoleID(ctx context.Context, roleID int64) ([]*entity.RolePermission, error) {
var data []*entity.RolePermission
// 將 int64 轉換為 ObjectID
roleOID := bson.NewObjectIDFromTimestamp(time.Unix(roleID, 0))
filter := bson.M{"role_id": roleOID}
err := repo.DB.GetClient().Find(ctx, &data, filter)
if err != nil {
if errors.Is(err, mon.ErrNotFound) {
return []*entity.RolePermission{}, nil
}
return nil, err
}
return data, nil
}
// GetByRoleIDs 批量取得多個角色的權限關聯 (優化 N+1 查詢)
func (repo *RolePermissionRepository) GetByRoleIDs(ctx context.Context, roleIDs []int64) (map[int64][]*entity.RolePermission, error) {
if len(roleIDs) == 0 {
return make(map[int64][]*entity.RolePermission), nil
}
var data []*entity.RolePermission
// 將 int64 轉換為 ObjectID
roleOIDs := make([]bson.ObjectID, 0, len(roleIDs))
oidToInt64 := make(map[string]int64) // 用於反向映射
for _, roleID := range roleIDs {
roleOID := bson.NewObjectIDFromTimestamp(time.Unix(roleID, 0))
roleOIDs = append(roleOIDs, roleOID)
oidToInt64[roleOID.Hex()] = roleID
}
filter := bson.M{
"role_id": bson.M{"$in": roleOIDs},
}
err := repo.DB.GetClient().Find(ctx, &data, filter)
if err != nil {
if errors.Is(err, mon.ErrNotFound) {
return make(map[int64][]*entity.RolePermission), nil
}
return nil, err
}
// 將結果按 roleID (int64) 分組
result := make(map[int64][]*entity.RolePermission)
for _, rp := range data {
// 將 ObjectID 轉回 int64
roleIDInt64 := oidToInt64[rp.RoleID.Hex()]
result[roleIDInt64] = append(result[roleIDInt64], rp)
}
return result, nil
}
// GetByPermissionIDs 根據權限 ID 取得所有角色關聯
func (repo *RolePermissionRepository) GetByPermissionIDs(ctx context.Context, permissionIDs []int64) ([]*entity.RolePermission, error) {
if len(permissionIDs) == 0 {
return []*entity.RolePermission{}, nil
}
var data []*entity.RolePermission
// 將 int64 轉換為 ObjectID
permOIDs := make([]bson.ObjectID, 0, len(permissionIDs))
for _, permID := range permissionIDs {
permOID := bson.NewObjectIDFromTimestamp(time.Unix(permID, 0))
permOIDs = append(permOIDs, permOID)
}
filter := bson.M{
"permission_id": bson.M{"$in": permOIDs},
}
err := repo.DB.GetClient().Find(ctx, &data, filter)
if err != nil {
if errors.Is(err, mon.ErrNotFound) {
return []*entity.RolePermission{}, nil
}
return nil, err
}
return data, nil
}
// GetRolesByPermission 根據權限 ID 取得所有角色 ID
func (repo *RolePermissionRepository) GetRolesByPermission(ctx context.Context, permissionID int64) ([]int64, error) {
var data []*entity.RolePermission
// 將 int64 轉換為 ObjectID
permOID := bson.NewObjectIDFromTimestamp(time.Unix(permissionID, 0))
filter := bson.M{"permission_id": permOID}
err := repo.DB.GetClient().Find(ctx, &data, filter)
if err != nil {
if errors.Is(err, mon.ErrNotFound) {
return []int64{}, nil
}
return nil, err
}
// 提取所有 roleID 並轉換回 int64
roleIDs := make([]int64, 0, len(data))
for _, rp := range data {
// 將 ObjectID 轉換回 int64 (取 timestamp)
roleIDInt64 := rp.RoleID.Timestamp().Unix()
roleIDs = append(roleIDs, roleIDInt64)
}
return roleIDs, nil
}
// clearRolePermissionCache 清除角色權限關聯快取
func (repo *RolePermissionRepository) clearRolePermissionCache(ctx context.Context, roleID int64) {
rk := domain.GetRolePermissionRedisKey(roleID)
_ = repo.DB.DelCache(ctx, rk)
}
// Index20251009003UP 建立 RolePermission 集合的索引
// 這個函數應該在應用啟動時或數據庫遷移時執行一次
func (repo *RolePermissionRepository) Index20251009003UP(ctx context.Context) (*mongodriver.Cursor, error) {
// 1. 複合唯一索引:角色 ID + 權限 ID 的組合必須唯一(避免重複關聯)
// 等價於 db.role_permission.createIndex({"role_id": 1, "permission_id": 1}, {unique: true})
repo.DB.PopulateMultiIndex(ctx, []string{"role_id", "permission_id"}, []int32{1, 1}, true)
// 2. 查詢索引:按角色 ID 查詢(用於獲取某角色的所有權限)
// 等價於 db.role_permission.createIndex({"role_id": 1})
repo.DB.PopulateIndex(ctx, "role_id", 1, false)
// 3. 查詢索引:按權限 ID 查詢(用於獲取擁有某權限的所有角色)
// 等價於 db.role_permission.createIndex({"permission_id": 1})
repo.DB.PopulateIndex(ctx, "permission_id", 1, false)
// 4. 複合索引:按權限 ID 和狀態查詢
// 等價於 db.role_permission.createIndex({"permission_id": 1, "status": 1})
repo.DB.PopulateMultiIndex(ctx, []string{"permission_id", "status"}, []int32{1, 1}, false)
// 5. 時間戳索引:用於排序和時間範圍查詢
// 等價於 db.role_permission.createIndex({"create_time": 1})
repo.DB.PopulateIndex(ctx, "create_time", 1, false)
// 返回所有索引列表
return repo.DB.GetClient().Indexes().List(ctx)
}