hawknewton / hogan_assets

Compiles your mustache templates with hogan.js on sprockets and the Rails asset pipeline.

HoganAssets

HoganAssets compiles your mustache templates with hogan.js on sprockets and the Rails asset pipeline.

hogan.js is a templating engine developed at Twitter that follows the mustache spec and compiles the templates to JavaScript. The first bit is cool, since mustache is cool. The second bit is awesome and full of win because we can now compile our mustache templates on the server using the asset pipeline/sprockets.

This gem contains hogan.js v3.0.0

Installation

Installation with Rails 3.1+

Add this to your Gemfile as part of the assets group

group :assets do
  gem 'hogan_assets'
end

And then execute:

$ bundle

Require hogan.js somewhere in your JavaScript manifest, for example in application.js if you are using Rails 3.1+:

//= require hogan.js

Locate your .mustache templates with your other JavaScript assets, usually in app/assets/javascripts/templates. Require your templates with require_tree:

//= require_tree ./templates

Templates are named for the sub-path from your manifest with require_tree. For example, the file app/assets/javascripts/templates/pages/person.mustache will be named templates/pages/person. (TODO: make this nicer)

Installation with sprockets

Add this line to your Gemfile:

gem 'hogan_assets'

And then execute:

$ bundle

Require hogan.js somewhere in your JavaScript.

TODO Templates?

Hamstache!

hamstache is the quite popular combination of haml and mustache, a more robust solution exists using haml_assets, but if all you want is nicer markup, you need to take these two additional steps:

Add this line to your Gemfile:

group :assets do
  gem 'haml'
end

And then execute:

$ bundle

Configuration

Template Extensions

HoganAssets recognizes templates ending in .mustache and if you have haml available, .hamstache. You can change the template extensions by setting the template_extensions configuration option in an initializer:

HoganAssets::Config.configure do |config|
  config.template_extensions = %w(mustache hamstache stache)
end

Lambda Support

HoganAssets supports mustache lambdas. Set the lambda_support option to true to enable lambdas for your templates. This will include the raw template text as part of the compiled template; each template will be correspondingly larger.

TODO Should this be on by default?

HoganAssets::Config.configure do |config|
  config.lambda_support = true
end

Usage

Templates are compiled to a global JavaScript object named HoganTemplates. To render pages/person:

HoganTemplates['templates/pages/person'].render(context, partials);

Author

I made this because I <3 mustache and want to use it in Rails. Follow me on Github and Twitter.

Contributors

• @mdavidn (Matthew Nelson) : Remove unnecessary template source
• @ajacksified (Jack Lawson) : Configurable file extension
• @mikesmullin (Mike Smullin) : hamstache support
• @gleuch (Greg Leuch) : Mustache lambdas
• @lautis (Ville Lautanala) : hamstache fix

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Added some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request