69 lines
1.7 KiB
Go
69 lines
1.7 KiB
Go
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package dao
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import (
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"context"
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"crypto/md5"
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"encoding/binary"
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"encoding/hex"
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"strconv"
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"go-common/library/cache/memcache"
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"go-common/library/log"
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)
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const (
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_subPrefix = "artsl_"
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)
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func midSub(mid int64, title string) string {
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ms := md5.Sum([]byte(title))
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return _subPrefix + strconv.FormatInt(mid, 10) + "_" + hex.EncodeToString(ms[:])
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}
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// SubmitCache get user submit cache.
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func (d *Dao) SubmitCache(c context.Context, mid int64, title string) (exist bool, err error) {
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conn := d.mc.Get(c)
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defer conn.Close()
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key := midSub(mid, title)
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_, err = conn.Get(key)
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if err != nil {
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if err == memcache.ErrNotFound {
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err = nil
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} else {
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log.Error("conn.Get error(%+v) | key(%s) mid(%d) title(%s)", err, key, mid, title)
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PromError("creation:获取标题缓存")
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}
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return
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}
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exist = true
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return
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}
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// AddSubmitCache add submit cache into mc.
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func (d *Dao) AddSubmitCache(c context.Context, mid int64, title string) (err error) {
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conn := d.mc.Get(c)
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defer conn.Close()
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key := midSub(mid, title)
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bs := make([]byte, 8)
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binary.BigEndian.PutUint64(bs, 1)
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if err = conn.Set(&memcache.Item{Key: key, Object: bs, Flags: memcache.FlagJSON, Expiration: d.mcSubExp}); err != nil {
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log.Error("memcache.set error(%+v) | key(%s) mid(%d) title(%s)", err, key, mid, title)
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PromError("creation:设定标题缓存")
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}
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return
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}
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// DelSubmitCache del submit cache into mc.
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func (d *Dao) DelSubmitCache(c context.Context, mid int64, title string) (err error) {
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conn := d.mc.Get(c)
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defer conn.Close()
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if err = conn.Delete(midSub(mid, title)); err == memcache.ErrNotFound {
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err = nil
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}
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if err != nil {
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PromError("creation:删除标题缓存")
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log.Error("creation: dao.DelSubmitCache(mid: %v, title: %v) err: %+v", mid, title, err)
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}
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return
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}
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