60 lines
1.8 KiB
Go
60 lines
1.8 KiB
Go
package cache
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import (
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"electricity_bill_calc/global"
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"electricity_bill_calc/tools"
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"strings"
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)
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const (
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STORE_TYPE_KEY = "KEY"
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STORE_TYPE_SET = "SET"
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STORE_TYPE_HASH = "HASH"
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)
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func assembleRelationKey(relationName string) string {
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var keys = make([]string, 0)
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keys = append(keys, strings.ToUpper(relationName))
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return CacheKey(TAG_RELATION, keys...)
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}
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func assembleRelationIdentity(storeType, key string, field ...string) string {
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var identity = make([]string, 0)
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identity = append(identity, storeType, key)
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identity = append(identity, field...)
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return strings.Join(identity, ";")
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}
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// 向缓存中保存与指定关联名称相关联的键的名称以及键的类型和子字段的组成。
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func CacheRelation(relationName, storeType, key string, field ...string) error {
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relationKey := assembleRelationKey(relationName)
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relationIdentity := assembleRelationIdentity(storeType, key, field...)
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result := global.RedisConn.SAdd(global.Ctx, relationKey, relationIdentity)
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return result.Err()
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}
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// 从缓存中清理指定的关联键
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func AbolishRelation(relationName string) error {
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relationKey := assembleRelationKey(relationName)
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result := global.RedisConn.SMembers(global.Ctx, relationKey)
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if result.Err() != nil {
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return result.Err()
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}
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relationItems := result.Val()
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pipeline := global.RedisConn.Pipeline()
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for _, item := range relationItems {
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separated := strings.Split(item, ";")
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switch separated[0] {
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case STORE_TYPE_KEY:
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pipeline.Del(global.Ctx, separated[1])
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case STORE_TYPE_HASH:
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pipeline.HDel(global.Ctx, separated[1], separated[2:]...)
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case STORE_TYPE_SET:
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pipeline.SRem(global.Ctx, separated[1], tools.ConvertSliceToInterfaceSlice(separated[2:])...)
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}
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}
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pipeline.Del(global.Ctx, relationKey)
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_, err := pipeline.Exec(global.Ctx)
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return err
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}
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