63500b3b2a
refactor: ♻️ 基于 gorm 钩子实现自动缓存失效机制，再也不用牵一发而动全身写删缓存逻辑了~ - 通过 gorm hook 监听 MySQL 数据变更 🧩 - 自动删除对应表相关缓存，实现缓存失效自动化 🔄 - 移除原本写在 sv 层的手动删缓存逻辑 🧹 - 解耦业务逻辑与缓存控制，结构更加清晰 ✅ fix: 🐛 修复将任务类加入日程接口的时间字段遗漏问题 - 由于前版本 MySQL 表结构更新 - 漏写插入起始时间字段逻辑，导致500报错，现已补充 ⏱️ fix: 🐛 修复获取最近已完成任务列表接口的多个问题 - 移除不应存在的幂等键 🔁 - 修复“一个event输出多次”的问题（原因出自 dto 转换函数） 🔧 undo: ⚠️ 删除任务类接口未处理已安排任务块的解除逻辑 - 当前删除任务类时，未解除已被安排的任务块 - 该逻辑存在缺陷，计划在后续版本内修复 🛠️
209 lines
7.1 KiB
Go
209 lines
7.1 KiB
Go
package dao
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"time"
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"github.com/LoveLosita/smartflow/backend/model"
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"github.com/go-redis/redis/v8"
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)
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type CacheDAO struct {
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client *redis.Client
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}
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func NewCacheDAO(client *redis.Client) *CacheDAO {
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return &CacheDAO{client: client}
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}
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// SetBlacklist 把 Token 扔进黑名单
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func (d *CacheDAO) SetBlacklist(jti string, expiration time.Duration) error {
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return d.client.Set(context.Background(), "blacklist:"+jti, "1", expiration).Err()
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}
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// IsBlacklisted 检查 Token 是否在黑名单中
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func (d *CacheDAO) IsBlacklisted(jti string) (bool, error) {
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result, err := d.client.Get(context.Background(), "blacklist:"+jti).Result()
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if errors.Is(err, redis.Nil) {
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return false, nil // 不在黑名单
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} else if err != nil {
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return false, err // 其他错误
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}
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return result == "1", nil // 在黑名单
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}
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func (d *CacheDAO) AddTaskClassList(ctx context.Context, userID int, list *model.UserGetTaskClassesResponse) error {
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// 1. 定义 Key，使用 userID 隔离不同用户的数据
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key := fmt.Sprintf("smartflow:task_classes:%d", userID)
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// 2. 序列化：将结构体转为 []byte
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data, err := json.Marshal(list)
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if err != nil {
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return err
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}
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// 3. 存储：设置 30 分钟过期（根据业务灵活调整）
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return d.client.Set(ctx, key, data, 30*time.Minute).Err()
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}
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func (d *CacheDAO) GetTaskClassList(ctx context.Context, userID int) (*model.UserGetTaskClassesResponse, error) {
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key := fmt.Sprintf("smartflow:task_classes:%d", userID)
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var resp model.UserGetTaskClassesResponse
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// 1. 从 Redis 获取字符串
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val, err := d.client.Get(ctx, key).Result()
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if err != nil {
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// 注意：如果是 redis.Nil，交给 Service 层处理查库逻辑
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return &resp, err
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}
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// 2. 反序列化：将 JSON 还原回结构体
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err = json.Unmarshal([]byte(val), &resp)
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return &resp, err
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}
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func (d *CacheDAO) DeleteTaskClassList(ctx context.Context, userID int) error {
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key := fmt.Sprintf("smartflow:task_classes:%d", userID)
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return d.client.Del(ctx, key).Err()
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}
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func (d *CacheDAO) GetRecord(ctx context.Context, key string) (string, error) {
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val, err := d.client.Get(ctx, key).Result()
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if errors.Is(err, redis.Nil) {
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return "", nil // 正常没命中的情况
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}
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return val, err // 真正的 Redis 报错
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}
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func (d *CacheDAO) SaveRecord(ctx context.Context, key string, val string, ttl time.Duration) error {
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return d.client.Set(ctx, key, val, ttl).Err()
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}
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func (d *CacheDAO) AcquireLock(ctx context.Context, key string, ttl time.Duration) (bool, error) {
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return d.client.SetNX(ctx, key, "processing", ttl).Result()
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}
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func (d *CacheDAO) ReleaseLock(ctx context.Context, key string) error {
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return d.client.Del(ctx, key).Err()
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}
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func (d *CacheDAO) GetUserTasksFromCache(ctx context.Context, userID int) ([]model.GetUserTaskResp, error) {
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key := fmt.Sprintf("smartflow:tasks:%d", userID)
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var tasks []model.GetUserTaskResp
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val, err := d.client.Get(ctx, key).Result()
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if err != nil {
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return nil, err // 注意：如果是 redis.Nil，交给 Service 层处理查库逻辑
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}
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err = json.Unmarshal([]byte(val), &tasks)
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return tasks, err
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}
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func (d *CacheDAO) SetUserTasksToCache(ctx context.Context, userID int, tasks []model.GetUserTaskResp) error {
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key := fmt.Sprintf("smartflow:tasks:%d", userID)
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data, err := json.Marshal(tasks)
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if err != nil {
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return err
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}
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return d.client.Set(ctx, key, data, 24*time.Hour).Err()
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}
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func (d *CacheDAO) DeleteUserTasksFromCache(ctx context.Context, userID int) error {
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key := fmt.Sprintf("smartflow:tasks:%d", userID)
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return d.client.Del(ctx, key).Err()
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}
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func (d *CacheDAO) GetUserTodayScheduleFromCache(ctx context.Context, userID int) ([]model.UserTodaySchedule, error) {
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key := fmt.Sprintf("smartflow:today_schedule:%d", userID)
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var schedules []model.UserTodaySchedule
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val, err := d.client.Get(ctx, key).Result()
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if err != nil {
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return nil, err // 注意：如果是 redis.Nil，交给 Service 层处理查库逻辑
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}
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err = json.Unmarshal([]byte(val), &schedules)
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return schedules, err
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}
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func (d *CacheDAO) SetUserTodayScheduleToCache(ctx context.Context, userID int, schedules []model.UserTodaySchedule) error {
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key := fmt.Sprintf("smartflow:today_schedule:%d", userID)
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data, err := json.Marshal(schedules)
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if err != nil {
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return err
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}
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// 设置过期时间为当天剩余的时间，确保每天更新一次缓存
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return d.client.Set(ctx, key, data, time.Until(time.Date(time.Now().Year(), time.Now().Month(), time.Now().Day()+1, 0, 0, 0, 0, time.Now().Location()))).Err()
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}
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func (d *CacheDAO) DeleteUserTodayScheduleFromCache(ctx context.Context, userID int) error {
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key := fmt.Sprintf("smartflow:today_schedule:%d", userID)
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return d.client.Del(ctx, key).Err()
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}
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func (d *CacheDAO) GetUserWeeklyScheduleFromCache(ctx context.Context, userID int, week int) (*model.UserWeekSchedule, error) {
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key := fmt.Sprintf("smartflow:weekly_schedule:%d:%d", userID, week)
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var schedules model.UserWeekSchedule
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val, err := d.client.Get(ctx, key).Result()
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if err != nil {
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return nil, err // 注意：如果是 redis.Nil，交给 Service 层处理查库逻辑
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}
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err = json.Unmarshal([]byte(val), &schedules)
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return &schedules, err
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}
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func (d *CacheDAO) SetUserWeeklyScheduleToCache(ctx context.Context, userID int, schedules *model.UserWeekSchedule) error {
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key := fmt.Sprintf("smartflow:weekly_schedule:%d:%d", userID, schedules.Week)
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data, err := json.Marshal(schedules)
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if err != nil {
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return err
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}
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// 设置过期时间为一天
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return d.client.Set(ctx, key, data, 24*time.Hour).Err()
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}
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func (d *CacheDAO) DeleteUserWeeklyScheduleFromCache(ctx context.Context, userID int, week int) error {
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key := fmt.Sprintf("smartflow:weekly_schedule:%d:%d", userID, week)
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return d.client.Del(ctx, key).Err()
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}
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func (d *CacheDAO) GetUserRecentCompletedSchedulesFromCache(ctx context.Context, userID, index, limit int) (model.UserRecentCompletedScheduleResponse, error) {
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key := fmt.Sprintf("smartflow:recent_completed_schedules:%d:%d:%d", userID, index, limit)
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var resp model.UserRecentCompletedScheduleResponse
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val, err := d.client.Get(ctx, key).Result()
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if err != nil {
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return resp, err // 注意：如果是 redis.Nil，交给 Service 层处理查库逻辑
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}
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err = json.Unmarshal([]byte(val), &resp)
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return resp, err
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}
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func (d *CacheDAO) SetUserRecentCompletedSchedulesToCache(ctx context.Context, userID, index, limit int, resp model.UserRecentCompletedScheduleResponse) error {
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key := fmt.Sprintf("smartflow:recent_completed_schedules:%d:%d:%d", userID, index, limit)
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data, err := json.Marshal(resp)
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if err != nil {
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return err
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}
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// 设置过期时间为30分钟
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return d.client.Set(ctx, key, data, 30*time.Minute).Err()
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}
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func (d *CacheDAO) DeleteUserRecentCompletedSchedulesFromCache(ctx context.Context, userID int) error {
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pattern := fmt.Sprintf("smartflow:recent_completed_schedules:%d:*", userID)
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var cursor uint64
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for {
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keys, next, err := d.client.Scan(ctx, cursor, pattern, 500).Result()
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if err != nil {
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return err
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}
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if len(keys) > 0 {
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// 用 UNLINK\(\) 异步删除，降低阻塞风险；如需强一致删除可改用 Del\(\)
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if err := d.client.Unlink(ctx, keys...).Err(); err != nil {
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return err
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}
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}
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cursor = next
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if cursor == 0 {
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break
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}
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}
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return nil
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}
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