问使用gorm支持go-sqlite3 3的JSON1

EN

package main

import (
    _ "github.com/mattn/go-sqlite3"
    "github.com/jinzhu/gorm"
    _ "github.com/jinzhu/gorm/dialects/sqlite"
    "fmt"
    "encoding/json"
    "net/http"
)

func main() {

    var db *gorm.DB

    type Session struct {
        gorm.Model
        SessionID string `json:"session_id"`
        Options string `json:"options"`
    }

    db, err := gorm.Open("sqlite3", "./app.db")
    if err != nil {
        fmt.Println(err)
    }

    defer db.Close() 
    db.AutoMigrate(&Session{})

    var m map[string]int
    m = make(map[string]int)
    m["a"] = 1
    m["b"] = 2
    m["c"] = 3

    js, err := json.Marshal(m)

    sess := Session{
        SessionID: "test",
        Options: string(js),
    }

    db.Create(&sess)
    db.Save(&sess)

    var b = &Session{}

    type Result struct {
        Options string
    }

    // JSON test
    var res Result
    db.Raw("SELECT json_extract(options, '$.a') as Options from sessions").Scan(&res)

    fmt.Println(sess.ID)
    fmt.Println(res)

}

go build -a -flags "sqlite_json1"  github.com/mattn/go-sqlite3
go install -a -flags "sqlite_json1"  github.com/mattn/go-sqlite3
go build -a --flags "sqlite_json1"  github.com/mattn/go-sqlite3
go install -a --flags "sqlite_json1"  github.com/mattn/go-sqlite3