Package: tgext.coffeescript
About tgext.coffeescriptCoffeeScriptis a little language that compiles to JavaScript. Underneath all those
awkward braces and semicolons, JavaScript has always had a gorgeous object model at its heart.CoffeeScriptis an attempt to expose the good parts of JavaScript in a simple way.tgext.coffeescriptis a middleware aimed at makingTurboGears2development easier, tgext.coffeescript converts regular coffee
files to javascript using the official CoffeeScript compiler.tgext.coffeescript is based ontgext.scssby Alessandro Molina and is
under the same license (MIT).Installingtgext.coffeescript can be installed both from pypi or from bitbucket:easy_install tgext.coffeescriptYou will also need to install the CoffeeScript compiler, for instructions on this check their website.CoffeeScriptEnabling tgext.coffeescriptUsing tgext.coffeescript is really simple, you edit yourconfig/middeware.pyand just after
the#Wrap your base TurboGears 2 application with custom middleware herecomment wrapappwithCoffeeScriptMiddleware:from tgext.coffeescript import CoffeeScriptMiddleware

make_base_app = base_config.setup_tg_wsgi_app(load_environment)

def make_app(global_conf, full_stack=True, **app_conf):
    app = make_base_app(global_conf, full_stack=True, **app_conf)

    # Wrap your base TurboGears 2 application with custom middleware here
    app = CoffeeScriptMiddleware(app)

    return appNow you just have to put your .coffee files insidepublic/javascriptand they will be served as JavaScript.JavaScript Compressiontgext.coffeescript supports javascript output minification via slimit or jsmin as a fallback, this function is
disabled by default and can be enabled by passing the parameter minify=True on the constructor:app = CoffeeScriptMiddleware(app, minify=True)Cache BackendsYou can change the cache backend storage into any dict like object that can serialize a dict object,
for example, you can use beaker cache by passing the cache object to the middleware constructor:from tgext.coffeescript import CoffeeScriptMiddleware
from tg import cache

make_base_app = base_config.setup_tg_wsgi_app(load_environment)

def make_app(global_conf, full_stack=True, **app_conf):
    app = make_base_app(global_conf, full_stack=True, **app_conf)

    # CoffeeScript with beaker cache backend
    app = CoffeeScriptMiddleware(app, cache=cache)

    return appCompiler optionsCurrently tgext.coffeescript turns the –bare compiler option by default, this means that the resulting javascript
output will not be wrapper under a top-level function, if you want to reverse this behaviour you can tell the
middleware to disable it:app = CoffeeScriptMiddleware(app, bare=False)This will disable the bare options for all files served with tgext.coffeescript, more granular control of this option
may be available later depending on the need for it.Jinja2 Extensiontgext.coffeescript provides an extension for jinja2 templates to compile CoffeeScript embedded directly on your
templates. To activate it just add to your config/app_config.py file the following:from tgext.coffeescript.jinja import CoffeeExtension

base_config.jinja_extensions = [CoffeeExtension]Now you can use the coffee tag in your templates:<style type="text/javascript">
{% coffee "main" %}
    console.log state for state in ['open', 'close', 'full']
{% endless %}
</style>Where “main” is a unique identifier for that CoffeeScript section, this should output nicely as:<style type="text/javascript">
var state, _i, _len, _ref;

_ref = ['open', 'close', 'full'];
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
  state = _ref[_i];
  console.log(state);
}
</style>