53 lines
1.5 KiB
Go
53 lines
1.5 KiB
Go
package cache
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import (
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"electricity_bill_calc/global"
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"fmt"
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"strconv"
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"strings"
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)
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func assembleCountKey(entityName string) string {
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var keys = make([]string, 0)
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keys = append(keys, strings.ToUpper(entityName))
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return CacheKey(TAG_COUNT, keys...)
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}
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func assembleCountIdentification(additional ...string) string {
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var b strings.Builder
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for _, s := range additional {
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fmt.Fprintf(&b, ":%s", s)
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}
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return b.String()
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}
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// 向缓存中缓存模型名称明确的包含指定条件的实体记录数量
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func CacheCount(entityName string, count int64, conditions ...string) error {
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countKey := assembleCountKey(entityName)
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identification := assembleCountIdentification(conditions...)
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result := global.RedisConn.HSet(global.Ctx, countKey, map[string]interface{}{identification: count})
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return result.Err()
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}
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// 从缓存中获取模型名称明确的，包含指定条件的实体记录数量
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func RetreiveCount(entityName string, condtions ...string) (int64, error) {
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countKey := assembleCountKey(entityName)
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identification := assembleCountIdentification(condtions...)
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result := global.RedisConn.HGet(global.Ctx, countKey, identification)
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if result.Err() != nil {
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return -1, result.Err()
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}
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count, err := strconv.ParseInt(result.Val(), 10, 64)
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if err != nil {
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return -1, err
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}
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return count, nil
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}
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// 删除指定模型名称的数量缓存
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func AbolishCountEntity(entityName string) error {
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countKey := assembleCountKey(entityName)
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result := global.RedisConn.Del(global.Ctx, countKey)
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return result.Err()
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}
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