The beginning of context hooks.

Not the working solution, but getting there conceptually.  Basically
we'll have a key with the view and the template as a tuple which is
the context hook that anyone can attach to.

However, some changes have still to be made:
 - The unit test doesn't work yet and contains a set_trace ;)
 - We'll probably switch the "view" component from being the callable
   to the "urlgen"'able name per Elrond's suggestion
 - Found a bug in unit tests related to running custom apps for
   different configs... hm.  I need to fix this!

Nonetheless, making progress.

This commit sponsored by... wait a minute... Christopher Webber?!

1 files changed, 8 insertions, 1 deletions

diff --git a/mediagoblin/tools/template.py b/mediagoblin/tools/template.py
index 54aeac92..84fdabf2 100644
--- a/mediagoblin/tools/template.py
+++ b/mediagoblin/tools/template.py
@@ -27,7 +27,8 @@ from mediagoblin import messages
 from mediagoblin import _version
 from mediagoblin.tools import common
 from mediagoblin.tools.translate import set_thread_locale
-from mediagoblin.tools.pluginapi import get_hook_templates
+from mediagoblin.tools.pluginapi import (
+    get_hook_templates, hook_transform)
 from mediagoblin.tools.timesince import timesince
 from mediagoblin.meddleware.csrf import render_csrf_form_token
 
@@ -103,6 +104,12 @@ def render_template(request, template_path, context):
     rendered_csrf_token = render_csrf_form_token(request)
     if rendered_csrf_token is not None:
         context['csrf_token'] = render_csrf_form_token(request)
+
+    # allow plugins to do things to the context
+    context = hook_transform(
+        (request.controller, template_path),
+        context)
+
     rendered = template.render(context)
 
     if common.TESTS_ENABLED: