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- package product
- import (
- "context"
- "database/sql"
- "errors"
- "fmt"
- "github.com/zeromicro/go-zero/core/logx"
- "github.com/zeromicro/go-zero/core/stores/cache"
- "github.com/zeromicro/go-zero/core/stores/sqlx"
- )
- var ErrUpdateConflict = errors.New("update conflict: data has been modified by another operation")
- var _ SysProductModel = (*customSysProductModel)(nil)
- type (
- SysProductModel interface {
- sysProductModel
- FindList(ctx context.Context, page, pageSize int64) ([]*SysProduct, int64, error)
- UpdateWithOptLock(ctx context.Context, data *SysProduct, expectedUpdateTime int64) error
- // UpdateWithOptLockTx 与 UpdateWithOptLock 的 SQL 语义完全一致(WHERE id=? AND updateTime=?),
- // 区别仅在于 UPDATE 执行在调用方传入的事务里。用于 UpdateProduct 把"产品行 CAS 更新 +
- // 成员 userId 读取 + 批量 tokenVersion 递增"串成原子事务(审计 L-R15-3)。
- //
- // 审计 L-R12-1:本方法**不做**缓存失效——事务尚未 commit 时失效会把未落盘的新值灌入缓存;
- // 调用方在事务 commit 成功后负责走相应的 post-commit 链路(通常由 UserDetailsLoader.CleanByProduct
- // + 底层 sysProduct cache 失效配合覆盖)。session==nil 时直接拒绝。
- UpdateWithOptLockTx(ctx context.Context, session sqlx.Session, data *SysProduct, expectedUpdateTime int64) error
- // InvalidateProductCache 失效 sysProduct 的 id / appKey / code 三把低层缓存键。对齐
- // sysUserModel.InvalidateProfileCache 的 L-R12-1 契约,仅应在事务 commit 成功后由调用方
- // 显式调用;best-effort,失败只留日志。
- InvalidateProductCache(ctx context.Context, id int64, appKey, code string)
- // LockByCodeTx 在当前事务里锁定 product 行(SELECT ... FOR UPDATE),用于把跨表写入(如权限同步)
- // 按 product 串行化,避免两次并发 SyncPermissions 在 sys_perm UNIQUE(productCode, code) 上撞 1062。
- LockByCodeTx(ctx context.Context, session sqlx.Session, code string) (*SysProduct, error)
- }
- customSysProductModel struct {
- *defaultSysProductModel
- }
- )
- func NewSysProductModel(conn sqlx.SqlConn, c cache.CacheConf, cachePrefix string, opts ...cache.Option) SysProductModel {
- return &customSysProductModel{
- defaultSysProductModel: newSysProductModel(conn, c, cachePrefix, opts...),
- }
- }
- func (m *customSysProductModel) UpdateWithOptLock(ctx context.Context, data *SysProduct, expectedUpdateTime int64) error {
- sysProductIdKey := fmt.Sprintf("%s%v", cacheSysProductIdPrefix, data.Id)
- sysProductAppKeyKey := fmt.Sprintf("%s%v", cacheSysProductAppKeyPrefix, data.AppKey)
- sysProductCodeKey := fmt.Sprintf("%s%v", cacheSysProductCodePrefix, data.Code)
- res, err := m.ExecCtx(ctx, func(ctx context.Context, conn sqlx.SqlConn) (sql.Result, error) {
- query := fmt.Sprintf("UPDATE %s SET `name`=?, `remark`=?, `status`=?, `updateTime`=? WHERE `id`=? AND `updateTime`=?", m.table)
- return conn.ExecCtx(ctx, query, data.Name, data.Remark, data.Status, data.UpdateTime, data.Id, expectedUpdateTime)
- }, sysProductIdKey, sysProductAppKeyKey, sysProductCodeKey)
- if err != nil {
- return err
- }
- affected, _ := res.RowsAffected()
- if affected == 0 {
- return ErrUpdateConflict
- }
- return nil
- }
- // InvalidateProductCache 见接口注释(审计 L-R12-1 / L-R15-3)。
- func (m *customSysProductModel) InvalidateProductCache(ctx context.Context, id int64, appKey, code string) {
- sysProductIdKey := fmt.Sprintf("%s%v", cacheSysProductIdPrefix, id)
- sysProductAppKeyKey := fmt.Sprintf("%s%v", cacheSysProductAppKeyPrefix, appKey)
- sysProductCodeKey := fmt.Sprintf("%s%v", cacheSysProductCodePrefix, code)
- if err := m.DelCacheCtx(ctx, sysProductIdKey, sysProductAppKeyKey, sysProductCodeKey); err != nil {
- if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
- logx.WithContext(ctx).Errorw("cache invalidation skipped: ctx canceled",
- logx.Field("audit", "cache_invalidation_skipped_due_to_ctx_cancel"),
- logx.Field("scope", "sysProductModel.InvalidateProductCache"),
- logx.Field("id", id),
- logx.Field("err", err.Error()),
- )
- } else {
- logx.WithContext(ctx).Errorf("sysProductModel.InvalidateProductCache failed: id=%d err=%v", id, err)
- }
- }
- }
- // UpdateWithOptLockTx 见接口注释(审计 L-R15-3 / L-R12-1)。
- func (m *customSysProductModel) UpdateWithOptLockTx(ctx context.Context, session sqlx.Session, data *SysProduct, expectedUpdateTime int64) error {
- if session == nil {
- return errors.New("UpdateWithOptLockTx requires a non-nil session")
- }
- query := fmt.Sprintf("UPDATE %s SET `name`=?, `remark`=?, `status`=?, `updateTime`=? WHERE `id`=? AND `updateTime`=?", m.table)
- res, err := session.ExecCtx(ctx, query, data.Name, data.Remark, data.Status, data.UpdateTime, data.Id, expectedUpdateTime)
- if err != nil {
- return err
- }
- affected, _ := res.RowsAffected()
- if affected == 0 {
- return ErrUpdateConflict
- }
- return nil
- }
- func (m *customSysProductModel) LockByCodeTx(ctx context.Context, session sqlx.Session, code string) (*SysProduct, error) {
- var resp SysProduct
- query := fmt.Sprintf("SELECT %s FROM %s WHERE `code` = ? LIMIT 1 FOR UPDATE", sysProductRows, m.table)
- if err := session.QueryRowCtx(ctx, &resp, query, code); err != nil {
- return nil, err
- }
- return &resp, nil
- }
- func (m *customSysProductModel) FindList(ctx context.Context, page, pageSize int64) ([]*SysProduct, int64, error) {
- var total int64
- countQuery := fmt.Sprintf("SELECT COUNT(*) FROM %s", m.table)
- if err := m.QueryRowNoCacheCtx(ctx, &total, countQuery); err != nil {
- return nil, 0, err
- }
- var list []*SysProduct
- query := fmt.Sprintf("SELECT %s FROM %s ORDER BY id DESC LIMIT ?,?", sysProductRows, m.table)
- if err := m.QueryRowsNoCacheCtx(ctx, &list, query, (page-1)*pageSize, pageSize); err != nil {
- return nil, 0, err
- }
- return list, total, nil
- }
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