我想通过GORM将实体与其自身相关联我试过了:
type project struct {
gorm.Model
Name string
ParentID uint
projects []project `gorm:"foreignkey:ParentID,association_foreignkey:ID"`
}
db.Create(&project{Name: "parent", ParentID: 0})
db.Create(&project{Name: "child", ParentID: 1})
db.Create(&project{Name: "child1", ParentID: 1})
var project Project
var projects []Project
db.First(&project)
db.Model(&project).Related(&projects)
但这是错误:
invalid association []
我想要的结果是:
{Name:"parent",
projects:[
{Name:"child",projects:[]},
{Name:"child1",projects:[]}
]
}
而且我想提一下,我是golang的新手:)
将projects
标签更改为此-gorm:"foreignkey:ParentID"
。要让其中有孩子的父母使用:db.Preload("projects").First(&project)
。