Send 'template_rendered' signal from Jinja2.

Send the signal only under DEBUG=True just like Django.

zproject/jinja2/backends.py

@@ -4,6 +4,7 @@ import sys
 
 import jinja2
 from django.utils import six
+from django.test.signals import template_rendered
 from django.template.backends import jinja2 as django_jinja2
 from django.template import TemplateDoesNotExist, TemplateSyntaxError, Context
 from django.utils.module_loading import import_string
@@ -22,12 +23,14 @@ class Jinja2(django_jinja2.Jinja2):
         # We need to remove `context_processors` from `OPTIONS` because
         # `Environment` doesn't expect it
         self.context_processors = params['OPTIONS'].pop('context_processors', [])
+        self.debug = params['OPTIONS'].pop('debug', False)
         super(Jinja2, self).__init__(params, *args, **kwargs)
 
     def get_template(self, template_name):
         try:
             return Template(self.env.get_template(template_name),
-                            self.context_processors)
+                            self.context_processors,
+                            self.debug)
         except jinja2.TemplateNotFound as exc:
             six.reraise(TemplateDoesNotExist, TemplateDoesNotExist(exc.args),
                         sys.exc_info()[2])
@@ -43,8 +46,9 @@ class Template(django_jinja2.Template):
         processors to the context before passing it to the `render`
         function.
         """
-        def __init__(self, template, context_processors, *args, **kwargs):
+        def __init__(self, template, context_processors, debug, *args, **kwargs):
             self.context_processors = context_processors
+            self.debug = debug
             super(Template, self).__init__(template, *args, **kwargs)
 
         def render(self, context=None, request=None):
@@ -63,4 +67,8 @@ class Template(django_jinja2.Template):
                     cp = import_string(context_processor)
                     context.update(cp(request))
 
+            if self.debug:
+                template_rendered.send(sender=self, template=self,
+                                       context=context)
+
             return self.template.render(context)

zproject/settings.py

@@ -251,6 +251,7 @@ TEMPLATES = [
         ],
         'APP_DIRS': False,
         'OPTIONS': {
+            'debug': DEBUG,
             'environment': 'zproject.jinja2.environment',
             'extensions': [
                 'jinja2.ext.i18n',