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68 lines
1.7 KiB
68 lines
1.7 KiB
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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