英文:
golang template with multiple structs
问题
我有一个包含JSON字段的结构体，类似于这样：
detail := &Detail{
Name string
Detail json.RawMessage
}
模板看起来像这样：
detail = 在{{Name}} {{CreatedAt}} {{UpdatedAt}}
我的问题是，我们可以在一个模板中使用一个或多个结构体，还是只能限制在一个结构体中使用？
英文:
I have struct that has JSON field something like this:
detail := &Detail{
Name string
Detail json.RawMessage
}
template looks like this:
detail = At {{Name}} {{CreatedAt}} {{UpdatedAt}}
My question can we use one or more structs for a single template or it is restricted to only one struct.
答案1
得分: 6
你可以传递任意数量的内容。由于你没有提供太多的示例供我参考，所以我会做一些假设，但是下面是处理的方法：
// 简写 - 很有用！type M map[string]interface{}func SomeHandler(w http.ResponseWriter, r *http.Request) {detail := Detail{}// 从数据库、API响应等获取populateDetail(&detail)user := User{}populateUser(&user)// 获取会话，设置头部等// 假设tmpl已经是一个已定义的*template.Templatetmpl.RenderTemplate(w, "index.tmpl", M{// 我们可以传递任意数量的内容"detail": detail,"profile": user,"status": "", // 仅作为示例})}
... 还有我们的模板：
<!DOCTYPE html><html><body>// 使用 "with"{{ with .detail }}{{ .Name }}{{ .CreatedAt }}{{ .UpdatedAt }}{{ end }}// ... 或者完全限定的方式// User有字段 "Name"、"Email"、"Address"。我们只使用两个。你好，{{ .profile.Name }}！登录邮箱为 {{ .profile.Email }}</body></html>
希望能够解答你的问题。
英文:
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]interfacefunc 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.Templatetmpl.RenderTemplate(w, "index.tmpl", M{// We can pass as many things as we like"detail": detail,"profile": user,"status": "", // Just an example}}
... 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>
Hope that clarifies.
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