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46 lines
879 B
46 lines
879 B
package recommend |
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import ( |
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"context" |
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"strconv" |
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"go-common/library/cache/redis" |
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"github.com/pkg/errors" |
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) |
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const ( |
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_prefixPos = "p_" |
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) |
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func keyPos(mid int64) string { |
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return _prefixPos + strconv.FormatInt(mid%100000, 10) |
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} |
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func (d *Dao) PositionCache(c context.Context, mid int64) (pos int, err error) { |
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var ( |
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key = keyPos(mid) |
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conn = d.redis.Get(c) |
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) |
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defer conn.Close() |
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if pos, err = redis.Int(conn.Do("HGET", key, mid)); err != nil { |
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if err == redis.ErrNil { |
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err = nil |
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return |
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} |
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err = errors.Wrapf(err, "conn.Do(HGET,%s,%d)", key, mid) |
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} |
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return |
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} |
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func (d *Dao) AddPositionCache(c context.Context, mid int64, pos int) (err error) { |
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var ( |
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key = keyPos(mid) |
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conn = d.redis.Get(c) |
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) |
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defer conn.Close() |
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if _, err = conn.Do("HSET", key, mid, pos); err != nil { |
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err = errors.Wrapf(err, "conn.Do(HSET,%s,%d,%d)", key, mid, pos) |
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} |
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return |
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}
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