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decValueTemplet.go
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/
decValueTemplet.go
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package src
import (
goredis "github.com/adimax2953/go-redis"
logtool "github.com/adimax2953/log-tool"
)
// DecValue function - keys, args[] string - return int64 , error
func (s *MyScriptor) DecValue(keys, args []string) (int64, error) {
res, err := s.Scriptor.ExecSha(DecValueID, keys, args)
if err != nil {
logtool.LogError("DecValue ExecSha Error", err)
return 0, err
}
result := &RedisResult{}
reader := goredis.NewRedisArrayReplyReader(res.([]interface{}))
result.ValueInt64, err = reader.ReadInt64(0)
if err != nil {
logtool.LogError("DecValue Value Error", err)
return 0, err
}
return result.ValueInt64, nil
}
// DecValue - 減少數值
const (
DecValueID = "DecValue"
DecValueTemplate = `
--[[
Author : Adimax.Tsai
Description : DecValue
EVALSHA <script_sha1> 0 {DBKey} {ProjectKey} {TagKey} {k1} {k2} {v1}
--]]
local DBKey = tonumber(KEYS[1])
local ProjectKey = KEYS[2]
local TagKey = KEYS[3]
local k1 = ARGV[1]
local k2 = ARGV[2]
local v1 = tonumber(ARGV[3])
local sender = "DecValue.lua"
---@return number
local function getTime()
return redis.call("TIME")[1]
end
if DBKey and ProjectKey and TagKey and k1 and k2 and v1 then
local MAIN_KEY = ProjectKey..":"..TagKey..":"..k1
redis.call("select",DBKey)
local tmp = redis.call('hget',MAIN_KEY,k2)
local v2 =tonumber(tmp)
local result = {-1}
if v1 <= v2 then
result =redis.call('hincrby',MAIN_KEY,k2,-v1)
redis.call("hset",MAIN_KEY,"lastUpdateTime",getTime())
end
return {result}
end
`
)