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I'm using Haml (Haml/Sass 3.0.9 - Classy Cassidy) stand-alone to generate static HTML. I want to create a shared layout template that all my other templates inherit.
Layout.haml
%html
%head
%title Test Template
%body
.Content
Content.haml
SOMEHOW INHERIT Layout.haml
SOMEHOW Change the title of the page "My Content".
%p This is my content
To produce:
Content.html
<html>
<head>
<title>My Content</title>
</head>
<body>
<div class="Content">
<p>This is my content</p>
</div>
</body>
</html>
But this doesn't seem possible. I have seen the use of rendering partials when using Haml with Rails but can't find any solution when using Haml stand-alone.
Having to put the layout code in all of my templates would be a maintenance nightmare; so my question is how do I avoid doing this? Is there a standard way to solve this problem? Have I missed something fundamental?
I found a similar question: Rendering HAML partials from within HAMLoutside of Rails
433
I've created a prototype that does what I need. I just need to create this as a module and allow it to accept the layout template and content template as arguments (along with a dataset).
require "haml"
layoutTemplate = File.read('layout.haml')
layoutEngine = Haml::Engine.new(layoutTemplate)
layoutScope = Object.new
output = layoutEngine.render(scope=layoutScope) { |x|
case x
when :title
scope.instance_variable_get("@haml_buffer").buffer << "My Title\n"
when :content
contentTemplate = File.read('page.haml')
contentEngine = Haml::Engine.new(contentTemplate)
contentOutput = contentEngine.render
scope.instance_variable_get("@haml_buffer").buffer << contentOutput
end
}
puts output
layout.haml
%html
%head
%title
- yield :title
%body
.content
- yield :content
page.haml
%h1 Testing
%p This is my test page.
Output
<html>
<head>
<title>
My Title
</title>
</head>
<body>
<div class='content'>
<h1>Testing</h1>
<p>This is my test page.</p>
</div>
</body>
</html>
Haml is built with the assumption that it'll be used alongside some Ruby framework that provides things like partials and layouts. If you want a simple way to render static Haml code with layouts and partials, check out StaticMatic.
29
StaticMatic has been abandoned by its creator, who now uses http://middlemanapp.com/
1
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