Why is the data not being passed to another html file?

P

Pavel Rogov2018-08-09 17:26:38

go

Pavel Rogov, 2018-08-09 17:26:38

There is a code for go:

func Render(templateName string, data interface{}) string {
  var templateDir = config.EmailNotice.TemplatesDir
  tmpl := template.New(templateName)

  tmpl, err = tmpl.ParseFiles(
    templateDir + `emails/` + templateName,
    templateDir + `header.html`,
    templateDir + `footer.html`,
  )

  if err != nil {
    log.Println(err)
  }

  var tpl bytes.Buffer
  if err := tmpl.Execute(&tpl, data); err != nil {
    log.Println(err)
  }

  return tpl.String()
}

Which parses three header templates :

{{ define "header" }}

<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>

{{ $site := "example.com" }}
{{ if ne .user.Site  "" }}
    {{ $site := .user.Site }}
{{ end }}

<div>
    <h1>
        <a href="{{ $site }}">
            <img src="/assets/images/logo.png" alt="logo"/>
        </a>
    </h1>
</div>

{{ end }}

body:

{{ template "header" }}
<h1>Test</h1>
{{ template "footer"}}

footer:

{{ define "footer"}}
     its footer
 </div>
 </body>
 </html>
{{ end }}

I'm passing in the data I want to use in an already rendered template, but it's panicking:

template: header.html:11:6: executing "header" at <ne .user.Site "">: error calling ne: invalid type for comparison

But if this piece:

{{ $site := "example.com" }}
{{ if ne .user.Site  "" }}
    {{ $site := .user.Site }}
{{ end }}

<div>
    <h1>
        <a href="{{ $site }}">
            <img src="/assets/images/logo.png" alt="logo"/>
        </a>
    </h1>
</div>

Transfer to the body template, then everything works. But somehow this is not right.
What am I doing wrong ?
I have already read a lot of things, but everywhere there are only examples of how to use data in only one template

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1 answer(s)

U

uvelichitel, 2018-08-09
@RogovP

Pass dot to child templates

{{ template "header" . }}
<h1>Test</h1>
{{ template "footer" . }}