jinja2-django-tags

This little library contains extensions for jinja2 that add template tags to jinja2 that you are used to from django templates.

The following tags are included:

There is also an extension for localizing template variables.

Requirements

This library requires at least Django 1.8 because there official jinja2 support was added.

If you want to use jinja2 templates in older versions of Django, take a look at django-jinja.

This library has been tested on Python 2.7, 3.4 and 3.5, Jinja 2.7 and 2.8, and Django 1.8, 1.9 and 1.10.

Usage

To use the tags, just run setup.py install from the base directory or pip install jinja2-django-tags and add the extensions to your TEMPLATES settings:

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.jinja2.Jinja2',
        'DIRS': [],
        'APP_DIRS': True,
        'OPTIONS': {
            'extensions': [
                'jdj_tags.extensions.DjangoStatic',
                'jdj_tags.extensions.DjangoI18n',
            ]
        },
    },
}

If you want all tags at once use jdj_tags.extensions.DjangoCompat in the extensions Option.

Tags

csrf_token

The {% csrf_token %} tag comes with jdj_tags.extensions.DjangoCsrf.

-----------------The i18n tags are defined in jdj_tags.extensions.DjangoI18n. The extension also tries to localize variables (such as dates and numbers) if USE_L10N is set in django settings.

{% trans %} works as it does in django:

Simple example: {% trans 'Hello World' %}

{% trans "I was saved to a variable!" as translated_var %}
Save to a variable: {{ translated_var }}

Translation with context:
{% trans 'Hello World' context 'second hello world example' %}

Noop translation: {% trans "Please don't translate me!" noop %}

{% blocktrans %} works as it does in django including with, trimmed, context, count and asvar arguments:

Simple example: {% blocktrans %}Hello World!{% endblocktrans %}

Variables:
{% url 'my_view' as my_url %}
{% blocktrans with my_upper_url=my_url|upper %}
    Normal url: {{ my_url }}
    Upper url: {{ my_upper_url }}
{% endblocktrans %}

Trim whitespace and save to variable:
{% blocktrans trimmed asvar translated_var %}
    Trim those
    pesky newlines.
{% endblocktrans %}
Translated text: {{ translated_var }}

You can also use _, gettext and pgettext directly:

Simple example: {{ _('Hello World') }}
More verbose: {{ gettext('Hello World') }}
With context: {{ pgettext('Hello World', 'another example') }}

now

The {% now %} tag comes with jdj_tags.extensions.DjangoNow. It works the same as in Django:

Current year: {% now 'Y' %}

{% now 'Y' as cur_year %}
Copyright My Company, {{ cur_year }}

static

The {% static %} tag comes with jdj_tags.extensions.DjangoStatic. It works the same as in Django:

My static file: {% static 'my/static.file' %}

{% static 'my/static.file' as my_file %}
My static file in a var: {{ my_file }}

url

The {% url %} tag is defined in jdj_tags.extensions.DjangoUrl. It works as it does in django, therefore you can only specify either args or kwargs:

Save to variable:
{% url 'my_view' 'foo' 'bar' as my_url %}
{{ my_url }}

Localization

The jdj_tags.extensions.DjangoL10n extension implements localization of template variables with respect to USE_L10N and USE_TZ settings:

>>> from datetime import datetime
>>> from django.utils import timezone, translation
>>> from jinja2 import Extension
>>> env = Environment(extensions=[DjangoL10n])
>>> template = env.from_string("{{ a_number }} {{ a_date }}")
>>> context = {
...     'a_number': 1.23,
...     'a_date': datetime(2000, 10, 1, 14, 10, 12, tzinfo=timezone.utc),
... }
>>> translation.activate('en')
>>> timezone.activate('America/Argentina/Buenos_Aires')
>>> template.render(context)
'1.23 Oct. 1, 2000, 11:10 a.m.'
>>> translation.activate('de')
>>> translation.activate('Europe/Berlin')
>>> template.render(context)
'1,23 1. Oktober 2000 16:10'

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