How to pass {% captured %} variable from a view to the layout in Jekyll/Liquid?

问题

I am trying to rebuild a blog in Jekyll and I have stubled upon a simple task.

Provided I have the following set of templates:

default.html:

{{ head }}

{{ content }}

frontpage.html:

---
layout: default
---

{% capture head %}
  Frontpage
{% end %}

{{ content }}

index.html:

---
layout: frontpage
---

Other stuff

I was expecting that {% capture head %} would pass a variable to layout. But it seems only variables from the Front Matter are actually being passed as page.variable_name.

Is there a way to pass capture-d var to the layout in Jekyll?

Guess I could make 2 different layouts for frontpage and normal_page that would replace the whole {{head}}{{content}} block in the layout. But that's like twice the html, so I'd rather solve it with capture if possible.

回答1:

You can't do this with a capture, but you can using an include. Every level of the page hierarchy can override the head key to point to a different include file as required

default.html

{% include {{ page.head }} %}

{{ content }}

frontpage.html

---
layout: default
head: header1.html
---

{{ content }}

_includes/header1.html

(Frontpage header content)

回答2:

If your use-case is like mine and you want to include add'l content inside your template, you can include multiline content from your front matter into the template using YAML's block scalar feature. A | keeps line-breaks while a > removes ("folds") line-breaks. (Note that the block indicator must be followed by a blank line.)

index.html

---
layout: default
head: |
  <link href="//cdn-images.mailchimp.com/embedcode/classic-081711.css" rel="stylesheet" type="text/css">
  <style type="text/css">
    #mc_embed_signup{background:#fff; clear:left; font:14px Helvetica,Arial,sans-serif; }
  </style>
script: |
  <script type='text/javascript' src='//s3.amazonaws.com/downloads.mailchimp.com/js/mc-validate.js'></script>
  <script type='text/javascript'>(function($) {window.fnames = new Array(); window.ftypes = new Array();fnames[0]='EMAIL';ftypes[0]='email';fnames[1]='FNAME';ftypes[1]='text';fnames[2]='LNAME';ftypes[2]='text';fnames[3]='PHONE';ftypes[3]='phone';fnames[4]='ORG';ftypes[4]='text';fnames[5]='MMERGE5';ftypes[5]='text';}(jQuery));var $mcj = jQuery.noConflict(true);</script>
---
<!-- Content, maybe a MailChimp signup form? -->

default.html

<!DOCTYPE html>
<html>
<head>
  <title>
    {{page.title}}
  </title>
  <link rel="stylesheet" type="text/css" href="/css/main.css">

  <!-- here you can have add'l arbitrary head content -->
  {{ page.head }}
</head>
<body>
  {{content}}

  <script>
    // Google Analytics, perhaps?
  </script>

  <!-- here you can have add'l arbitrary content at the end of the page, good for scripts -->
  {{page.script}}
</body>
</html>

来源：https://stackoverflow.com/questions/17773038/how-to-pass-captured-variable-from-a-view-to-the-layout-in-jekyll-liquid

标签

Jekyll

liquid

liquid-layout

jekyll-extensions