英文:
Object within an Object within an Object Golang
问题
我正在尝试在MongoDB中创建嵌套对象，但没有成功。我想要实现的格式如下：
"Courses":{
"Date":{
"CourseName":{
"hole 1":{
},
"hole 2":{
},
...一直到18个洞
}
}
}
我已经尝试并成功获取了course中的date对象，方法如下：
u := req.FormValue("username")
co := req.FormValue("course")
d := req.FormValue("date")
ng := nGame{Username: u, Course: co, Dates: d}
cn := courseName{CName: co}
query := bson.M{"username": u}
update := bson.M{"$push": bson.M{"Course": bson.M{ng.Dates: cn}}}
err = c.Update(query, update)
date对象中包含了course名称，我想要做的是将course名称作为另一个对象，然后再插入hole对象。
我使用的结构体如下：
type (
nGame struct {
Username string
Course string
Location string
Dates string
}
)
type (
courseName struct {
CName string
}
)
英文:
I'm attempting to create nested objects in mongoDB with no luck the format I am trying to achieve is as follows
"Courses":{
"Date":{
"CourseName" :{
"hole 1"{
}
"hole 2"{
}
...so on until 18
}//coursename
}//date
}//courses
I've tried and succeeded with getting the date object within course by doing the following:
u := req.FormValue("username")
co := req.FormValue("course")
d := req.FormValue("date")
ng := nGame{Username: u, Course: co, Dates: d}
cn := courseName{CName: co}
query := bson.M{"username": u}
update := bson.M{"$push": bson.M{"Course": bson.M{ng.Dates: cn}}}
err = c.Update(query, update)
The date object has the course name inside it what i'm trying to do is make course name another object which then I can insert the hole object.
The Structs i'm using are as follows:
type (
nGame struct {
Username string
Course string
Location string
Dates string
}
)
type (
courseName struct {
CName string
}
)
答案1
得分: 2
根据你的描述，我理解你的结构可以用Go语言表示如下：
type Hole struct {
// 这里可以放任何你想要的内容
}
type Course struct {
Hole1 Hole `json:"hole 1"`
Hole2 Hole `json:"hole 2"`
// ...
Hole18 Hole `json:"hole 18"`
}
type Courses struct {
// 日期 课程名
Map map[string]map[string]Course
}
我建议你使用一个包含18个元素的数组来表示你的洞，但这取决于你的需求：
type Course struct {
Holes [18]Hole
}
然后你可以实例化一个这样的结构体（使用`[18]Hole`数组；如果你使用其他实现方式，请相应调整）：
courses := Courses{
Map: map[string]map[string]Course{
"2017-01-01": map[string]Course{
"Bob's Course": Course{
Holes: [18]Hole{
Hole{
// 洞1
},
Hole{
// 洞2
},
// ...
},
},
},
},
}
以上是你要翻译的内容。
英文:
Your described structure, as I understand it, can be represented in Go as follows:
type Hole struct {
// Whatever you want here
}
type Course struct {
Hole1 Hole `json:"hole 1"`
Hole2 Hole `json:"hole 2"`
// ...
Hole18 Hole `json:"hole 18"`
}
type Courses struct {
// Date CourseName
map[string]map[string]Course
}
I would suggest, however, using an 18-element array for your holes, but that's up to you:
type Course struct {
Holes [18]Hole
}
Then you can instantiate one of these trees as (using a [18]Hole array; adjust accordingly if you use a different implementation):
courses := Courses{
map[string]map[string]Course{
"2017-01-01": map[string]Course{
"Bob's Course": Course{
[18]Hole{
Hole{
// Hole 1
},
Hole{
// Hole 2
},
// ..
},
},
},
},
}
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
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