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Go template function

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你的背包
你的背包 2021-02-05 02:26

It noticed a weird thing with Go templates when I try to use Funcs and FuncMap. The following code works as expected:

buffer := bytes.N
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  • 暗喜
    2021-02-05 03:01

    ParseFiles could probably use better documentation. A template object can have multiple templates in it and each one has a name. If you look at the implementation of ParseFiles, you see that it uses the filename as the template name inside of the template object. So, name your file the same as the template object, (probably not generally practical) or else use ExecuteTemplate instead of just Execute.

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  • 情歌与酒
    2021-02-05 03:05

    you need to first parse all the files and execute them .you cannot direclty access all the files .

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  • 走了就别回头了
    2021-02-05 03:10

    Sonia's answer is technically correct but left me even more confused. Here's how I eventually got it working:

    t, err := template.New("_base.html").Funcs(funcs).ParseFiles("../view/_base.html", "../view/home.html")
if err != nil {
    fmt.Fprint(w, "Error:", err)
    fmt.Println("Error:", err)
    return
}
err = t.Execute(w, data)
if err != nil {
    fmt.Fprint(w, "Error:", err)
    fmt.Println("Error:", err)
}

    The name of the template is the bare filename of the template, not the complete path. Execute will execute the default template provided it's named to match, so there's no need to use ExecuteTemplate.

    In this case, _base.html file is the outermost container, eg:

    <!DOCTYPE html>
<html><body>
<h1>{{ template "title" }}</h1>
{{ template "content" }}
</body></html>

    while home.html defines the specific parts:

    {{ define "title" }}Home{{ end }}

{{ define "content" }}
Stuff
{{ end }}
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