I write a wrapper function in Golang for rendering template from multiple files like this:
func RenderTemplate(w http.ResponseWriter, data interface{}, tmpl... string) {
cwd, _ := os.Getwd()
for _,file:=range tmpl{
file=filepath.Join(cwd,"./view/"+file+".html")
}
t, err := template.ParseFiles(tmpl...)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
templates:=template.Must(t)
err = templates.Execute(w, data)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
}
}
When I run server from main
function, the console throws an error:
not enough arguments in call to "html/template".Must
If I write like this:
templates,err:=template.Must(t)
It also throws the same error, plus:
assignment count mismatch: 2 = 1
I intend to use this function for a route handler in server:
func IndexHandler(w http.ResponseWriter, r *http.Request) {
files:=[]string{"base","index"}
util.RenderTemplate(w, nil, files...)
}
index.html
extends from base.html
using template nesting
base.html
template:
{{define "base"}}
<!DOCTYPE html>
<html>
<head>
<meta charget="utf-8">
<title>{{template "title".}}</title>
<script type="text/javascript" src="https://code.jquery.com/jquery-2.2.0.min.js"></script>
<script type="text/javascript" src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<script type="text/javascript" src="/js/isotope.pkgd.min.js"></script>
<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css">
<link rel="stylesheet" type="text/css" href="/css/style.css">
</head>
<body>
{{template "index".}}
</body>
</html>
{{end}}
And index.html
template:
<!DOCTYPE html>
<html>
{{define "title"}}Homepage{{end}}
<body>
{{define "index"}}
<div class="wrapper">
<div class="page-content">
<div class="container">
<div class="left">
<img src="../public/images/img_landing_page_mac.png">
</div>
<div class="right">
<h2 style="font-size: 33px; letter-spacing: 5px">Organize <br>Modern Knowledge<br> for Mankind</h2>
<p style="font-size: 20px;margin-top: 35px;letter-spacing: 4px">Consume, Colect and Revisit <br>Knowledge at Your Fingertips</p>
<a href="#" style="margin-top: 80px;display: inline-block;margin-left: -17px"><img src="../public/images/btn_get_chrome.png"></a>
</div>
</div>
</div>
</div>
{{end}}
</body>
</html>
Did I miss something? I checked the prototype of "html/template".Must
and didn't get what happened
You do not need to call ParseFiles and Must, you can call one or the other
func RenderTemplate(w http.ResponseWriter, data interface{}, tmpl... string) {
cwd, _ := os.Getwd()
for _,file:=range tmpl{
file=filepath.Join(cwd,"./view/"+file+".html")
}
t, err := template.ParseFiles(tmpl...)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
err = t.Execute(w, data)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
}
}
I believe the func above should do what you want...