Add Jinja2 template loader for Django.

jinja2_for_django.py

@@ -0,0 +1,53 @@
+"""
+
+    A Jinja2 template loader for Django 1.2+
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    
+    Add the following to your settings.py file.  (The comma is important!) 
+
+        TEMPLATE_LOADERS = ('jinja2_for_django.Loader',)
+
+    Now use your templates as usual (with render_to_response, generic views or
+    anything else that uses Django templates), and they will actually be
+    rendered by Jinja2.
+    
+    See http://exyr.org/2010/Jinja-in-Django/
+    
+    Author: Simon Sapin
+    License: BSD
+
+"""
+
+from django.template.loader import BaseLoader
+from django.template.loaders.app_directories import app_template_dirs
+from django.template import TemplateDoesNotExist
+from django.core import urlresolvers
+from django.conf import settings
+import jinja2
+
+class Template(jinja2.Template):
+    def render(self, context):
+        # flatten the Django Context into a single dictionary.
+        context_dict = {}
+        for d in context.dicts:
+            context_dict.update(d)
+        return super(Template, self).render(context_dict)
+
+class Loader(BaseLoader):
+    is_usable = True
+
+    env = jinja2.Environment(loader=jinja2.FileSystemLoader(app_template_dirs))
+    env.template_class = Template
+
+    # These are available to all templates.
+    env.globals['url_for'] = urlresolvers.reverse
+    env.globals['MEDIA_URL'] = settings.MEDIA_URL
+    #env.globals['STATIC_URL'] = settings.STATIC_URL
+
+    def load_template(self, template_name, template_dirs=None):
+        try:
+            template = self.env.get_template(template_name)
+        except jinja2.TemplateNotFound:
+            raise TemplateDoesNotExist(template_name)
+        return template, template.filename
+