jinja_tornado

jinja2 support for tornado applications.

Install

$ python setup.py install

Usage

from jinja_tornado import JinjaApp, JinjaTemplateMixin

application = tornado.web.Application( ... )

environment = JinjaApp.init_app(application) 
"""init_app returns jinja2 environment that is used by application.
takes a dict as second argument which contains your custom jinja 2
settings for environment constructor.
see http://jinja.pocoo.org/docs/api/#jinja2.Environment """



class JinjaEnabledHandler(JinjaTemplateMixin, tornado.web.RequestHandler):
    """ this Handler supports
        - `self.session` properties (as flask.session) and `session` in template
        - `self.render` method
        - `self.render_string` method """




# custom filters, tests, globals
environment = JinjaApp.init_app(application)
@environment.filter()
def foo_to_bar(x):
    return x.replace('foo', 'bar')

Template variables

request        => tornado.web.RequestHandler.request
session        => tornado.web.RequestHandler.get_secure_cookie('session')
path_args      => tornado.web.RequestHandler.path_args
path_kwargs    => tornado.web.RequestHandler.path_kwargs
settings       => tornado.web.RequestHandler.application.settings
reverse_url    => tornado.web.RequestHandler.application.reverse_url
static_url     => tornado.web.RequestHandler.static_url
xsrf_form_html => tornado.web.RequestHandler.xsrf_form_html
datetime       => datetime (python module)
locale         => tornado.web.RequestHandler.locale
_              => tornado.web.RequestHandler.locale.translate
handler        => tornado.web.RequestHandler (self)
current_user   => tornado.web.requestHandler.current_user

Template filters

tojson       => JSON-encode the given python object

    <script>
      var obj = {{ obj | tojson | safe }}
    </script>

xhtml_escape => tornado.escape.xhtml_escape
url_escape   => tornado.escape.url_escape
squeeze      => tornado.escape.squeeze
linkify      => tornado.escape.linkify

Todo

• write tests
• no more opinionated session implementation
• implement template preprocessors
• UIModules, and various 'tornado' template structures

License

see LICENSE