Pass data via main template to sub template?

Getting Help
1

I have passed data to a one level template with success.

main.go

	path := strings.Trim(r.URL.Path, "/")
	page = page + ".html"
    list := Get(query)
	err := tpl.ExecuteTemplate(w, page, list)

posts.html

<!DOCTYPE html>
<html data-theme="classic" lang="en">

  <head>
    {{template "httphead"}}
  </head>
  <body>
    <div class="content">
      <table>
        <col style="width:50px">
        <col style="width:100%">
        {{range .}}
        <tr>
          <td><img src="avatar/{{.Id}}.jpg"></td>
          <td>
            <h4>#{{.Id}} {{.Subject}}</h4>
            <p>John Doe</p>
          </td>
        </tr>
        {{end}}
      </table>
    </div>
  </body>
</html>

But this approach does not work with using themes. As each template has its own <html data-theme="classic">, there is a delay when setting the theme.

Live: http://94.237.92.101:2020/posts (this works but themes are delayed)

So now I am trying to do ONE main html template

layout.html

<!DOCTYPE html>
<html data-theme="" lang="en">
  {{template "httphead"}}

  <body>
    <div class="mainbox">
      {{template "header"}}
      <div class="contentbox">
        {{template "content" .}}
      </div>
    </div>
  </body>

</html>

and separate sub templates for data:

posts.html

<div class="contentbox">
    <div class="content">
      <table>
        <col style="width:50px">
        <col style="width:100%">
        {{range .}}
        <tr>
          <td><img src="avatar/{{.Id}}.jpg"></td>
          <td>
            <h4>#{{.Id}} {{.Subject}}</h4>
          </td>
        </tr>
        {{end}}
      </table>
    </div>
  </div>
</div>

and in the main.go

page = page + ".html"

layout := tpl.Lookup("layout.html")
layout, _ = layout.Clone()
t := tpl.Lookup(page)
_, _ = layout.AddParseTree("content", t.Tree)
layout.Execute(w, page, list)  <--- Not able to pass data

./main.go:72:16: too many arguments in call to layout.Execute
have (http.ResponseWriter, string, interface {})
want (io.Writer, interface {})

Live http://94.237.92.101:3030/posts (no data passed)

  1. How do I pass data via the main template?
  2. Is there any better way to do this?
2

Do you want to pass the name of a template as the second argument?

Did you try Template.ExecuteTemplate instead of Template.Execute?

3 
layout.ExecuteTemplate(w, page, list)

Only render the sub template. The data is transfered.

tpl.ExecuteTemplate(w, page, list)

Only render the main template. No data is transfered

How do I render both main and sub template?

4

The solution was simpler than I thougth:

layout.Execute(w, list)

http://94.237.92.101:3030/posts

1 Like
5

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