具有多个结构的golang模板 [英] golang template with multiple structs
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问题描述
我有一个具有JSON字段的结构，如下所示:
I have struct that has JSON field something like this:
详细信息:=&详细信息{ 名称字符串 详细json.RawMessage }
detail := &Detail{ Name string Detail json.RawMessage }
模板看起来像这样:
细节= At {{Name}} {{CreatedAt}} {{UpdatedAt}}
我的问题是我们可以为单个模板使用一个或多个结构，还是只能将其限制为一个结构.
My question can we use one or more structs for a single template or it is restricted to only one struct.
推荐答案
您可以传递任意多的内容.您没有提供很多示例可以使用，因此我将假设一些事情，但是您可以通过以下方法解决它:
You can pass as many things as you like. You haven't provided much of an example to work with, so I'm going to assume a few things, but here's how you would tackle it:
// Shorthand - useful!
type M map[string]interface
func SomeHandler(w http.ResponseWriter, r *http.Request) {
detail := Detail{}
// From a DB, or API response, etc.
populateDetail(&detail)
user := User{}
populateUser(&user)
// Get a session, set headers, etc.
// Assuming tmpl is already a defined *template.Template
tmpl.RenderTemplate(w, "index.tmpl", M{
// We can pass as many things as we like
"detail": detail,
"profile": user,
"status": "", // Just an example
}
}
...以及我们的模板:
... and our template:
<!DOCTYPE html>
<html>
<body>
// Using "with"
{{ with .detail }}
{{ .Name }}
{{ .CreatedAt }}
{{ .UpdatedAt }}
{{ end }}
// ... or the fully-qualified way
// User has fields "Name", "Email", "Address". We'll use just two.
Hi there, {{ .profile.Name }}!
Logged in as {{ .profile.Email }}
</body>
</html>
希望如此.
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