qor_hasmany_hook_problem

package main

import (
    "log"
    "net/http"

    "github.com/jinzhu/gorm"
    "github.com/qor/admin"

    _ "github.com/jinzhu/gorm/dialects/sqlite"
)

type Order struct {
    gorm.Model
    Name string

    OrderItems []OrderItem
}

type OrderItem struct {
    gorm.Model
    Name string

    OrderID uint
}

func (oi *OrderItem) BeforeDelete(tx *gorm.DB) error {
    // There is a problem: oi.ID == 0
    // if OrderItem deleted from http://localhost:9000/api/orders page
    log.Println("BeforeDelete: ID:", oi.ID)
    return nil
}

func main() {
    db, _ := gorm.Open("sqlite3", "demo.db")
    db.AutoMigrate(&Order{}, &OrderItem{})

    adm := admin.New(&admin.AdminConfig{DB: db})
    adm.AddResource(&Order{})
    adm.AddResource(&OrderItem{})

    mux := http.NewServeMux()
    adm.MountTo("/api", mux)

    serverAddress := ":9000"
    log.Println("Listening on:", serverAddress)
    http.ListenAndServe(serverAddress, mux)
}