https://github.com/8treenet/gcache

gcache是gorm的中间件，插入后gorm即刻拥有缓存。
https://github.com/8treenet/gcache

cache gcache gorm gorm-cache

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gcache是gorm的中间件，插入后gorm即刻拥有缓存。

• Host: GitHub
• URL: https://github.com/8treenet/gcache
• Owner: 8treenet
• License: apache-2.0
• Created: 2019-09-13T11:27:41.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2021-11-17T06:42:50.000Z (almost 3 years ago)
• Last Synced: 2024-10-31T08:37:34.592Z (14 days ago)
• Topics: cache, gcache, gorm, gorm-cache
• Language: Go
• Homepage:
• Size: 96.7 KB
• Stars: 386
• Watchers: 10
• Forks: 52
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# gcache

[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/8treenet/freedom/blob/master/LICENSE) [![Go Report Card](https://goreportcard.com/badge/github.com/8treenet/freedom)](https://goreportcard.com/report/github.com/8treenet/freedom) [![Build Status](https://travis-ci.org/8treenet/gotree.svg?branch=master)](https://travis-ci.org/8treenet/gotree) [![GoDoc](https://godoc.org/github.com/8treenet/freedom?status.svg)](https://godoc.org/github.com/8treenet/freedom) 

###### gcache是gorm的中间件，插入后gorm即刻拥有缓存。

## Overview

- 即插即用

- 旁路缓存

- 数据源使用 Redis

- 防击穿

- 防穿透

#### 安装

```sh

$ go get github.com/8treenet/gcache

```

#### 快速使用

```go

import (

    "github.com/8treenet/gcache"

    "github.com/jinzhu/gorm"

    "github.com/8treenet/gcache/option""

)

func init() {

    //创建 gorm.DB

    db, _ = gorm.Open("mysql", "")

    opt := option.DefaultOption{}

    opt.Expires = 300                //缓存时间, 默认120秒。范围30-43200

    opt.Level = option.LevelSearch   //缓存级别，默认LevelSearch。LevelDisable:关闭缓存，LevelModel:模型缓存， LevelSearch:查询缓存

    opt.AsyncWrite = false           //异步缓存更新, 默认false。 insert update delete 成功后是否异步更新缓存。 ps: affected如果未0，不触发更新。

    opt.PenetrationSafe = false 	 //开启防穿透, 默认false。 ps:防击穿强制全局开启。

    

    //缓存中间件附加到gorm.DB

    gcache.AttachDB(db, &opt, &option.RedisOption{Addr:"localhost:6379"})

}

```

#### 约定

- 模型必须指明主键 `gorm:"primary_key"`

- 不支持 Group

- 不支持 Having

- 查询条件和查询参数分离

#### [Example](https://github.com/8treenet/gcache/blob/master/example/example_test.go)

```shell script

    #查看 example_test.go 了解更多。

    more src/github.com/8treenet/gcache/example/example_test.go

```