AngularJS with Django – Conflicting template tags – Dev

The best answers to the question “AngularJS with Django – Conflicting template tags” in the category Dev.

QUESTION:

I want to use AngularJS with Django however they both use {{ }} as their template tags. Is there an easy way to change one of the two to use some other custom templating tag?

ANSWER:

you can maybe try verbatim Django template tag
and use it like this :

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js"></script>

{% verbatim %}
<div ng-app="">
    <p>10 is {{ 5 + 5 }}</p>
</div>
{% endverbatim %}

ANSWER:

For Angular 1.0 you should use the $interpolateProvider apis to configure the interpolation symbols: http://docs.angularjs.org/api/ng.$interpolateProvider.

Something like this should do the trick:

myModule.config(function($interpolateProvider) {
  $interpolateProvider.startSymbol('{[{');
  $interpolateProvider.endSymbol('}]}');
});

Keep in mind two things:

  • mixing server-side and client-side templates is rarely a good idea and should be used with caution. The main issues are: maintainability (hard to read) and security (double interpolation could expose a new security vector – e.g. while escaping of serverside and clientside templating by themselves might be secure, their combination might not be).
  • if you start using third-party directives (components) that use {{ }} in their templates then your configuration will break them. (fix pending)

While there is nothing we can do about the first issue, except for warning people, we do need to address the second issue.

ANSWER:

We created a very simple filter in Django ‘ng’ that makes it easy to mix the two:

foo.html:

...
<div>
  {{ django_context_var }}
  {{ 'angularScopeVar' | ng }}
  {{ 'angularScopeFunction()' | ng }}
</div>
...

The ng filter looks like this:

from django import template
from django.utils import safestring

register = template.Library()


@register.filter(name="ng")
def Angularify(value):
  return safestring.mark_safe('{{%s}}' % value)

ANSWER:

If you did separate sections of page properly then you can easily use angularjs tags in “raw” tag scope.

In jinja2

{% raw %}
    // here you can write angularjs template tags.
{% endraw %}

In Django template (above 1.5)

{% verbatim %}    
    // here you can write angularjs template tags.
{% endverbatim %}