50 lines
1.6 KiB
Go
50 lines
1.6 KiB
Go
package cache
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import (
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"fmt"
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"strings"
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"time"
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"github.com/samber/lo"
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)
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func assembleExistsKey(entityName string, additional ...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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keys = append(keys, additional...)
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var b strings.Builder
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b.WriteString(TAG_EXISTS)
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for _, s := range keys {
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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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// 缓存模型名称明确的、包含指定ID以及一些附加条件的记录
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func CacheExists(relationNames []string, entityName string, conditions ...string) error {
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existskey := assembleExistsKey(entityName, conditions...)
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err := Cache(existskey, lo.ToPtr(true), 5*time.Minute)
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for _, relationName := range relationNames {
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CacheRelation(relationName, STORE_TYPE_KEY, existskey)
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}
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return err
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}
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// 从缓存中获取模型名称明确、包含指定ID以及一些附加条件的实体是否存在的标记，函数在返回false时不保证数据库中相关记录也不存在
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func CheckExists(entityName string, condtions ...string) (bool, error) {
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existsKey := assembleExistsKey(entityName, condtions...)
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return Exists(existsKey)
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}
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// 从缓存中删除模型名称明确、包含指定ID的全部实体存在标记
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func AbolishExists(entityName, id string) error {
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pattern := fmt.Sprintf("%s:%s:%s:*", TAG_EXISTS, strings.ToUpper(entityName), id)
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return DeleteAll(pattern)
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}
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// 从缓存中删除指定模型名称的全部存在标记
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func AbolishExistsEntity(entityName string) error {
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pattern := fmt.Sprintf("%s:%s:*", TAG_EXISTS, strings.ToUpper(entityName))
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return DeleteAll(pattern)
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}
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