Add an index page that lists all courses

cms/djangoapps/contentstore/views.py

@@ -3,12 +3,27 @@ import json
 from django.http import HttpResponse
 from django_future.csrf import ensure_csrf_cookie
 from fs.osfs import OSFS
+from django.core.urlresolvers import reverse
 
 from mitxmako.shortcuts import render_to_response
 from xmodule.modulestore.django import modulestore
 
 
 @ensure_csrf_cookie
+def index(request):
+    courses = modulestore().get_items(['i4x', None, None, 'course', None])
+    print courses
+    return render_to_response('index.html', {
+        'courses': [(course.metadata['display_name'],
+                    reverse('course_index', args=[
+                        course.location.org,
+                        course.location.course,
+                        course.location.name]))
+                    for course in courses]
+    })
+
+
+@ensure_csrf_cookie
 def course_index(request, org, course, name):
     # TODO (cpennington): These need to be read in from the active user
     course = modulestore().get_item(['i4x', org, course, 'course', name])

cms/templates/index.html

+<%inherit file="base.html" />
+<%block name="title">Courses</%block>
+
+<%block name="content">
+<section class="main-container">
+  <ol>
+    %for course, url in courses:
+    <li><a href="${url}">${course}</a></li>
+    %endfor
+  </ol>
+</section>
+</%block>

common/lib/xmodule/xmodule/modulestore/__init__.py

@@ -154,6 +154,18 @@ class ModuleStore(object):
         """
         raise NotImplementedError
     
+    def get_items(self, location, default_class=None):
+        """
+        Returns a list of XModuleDescriptor instances for the items
+        that match location. Any element of location that is None is treated
+        as a wildcard that matches any value
+
+        location: Something that can be passed to Location
+        default_class: An XModuleDescriptor subclass to use if no plugin matching the
+            location is found
+        """
+        raise NotImplementedError
+
     # TODO (cpennington): Replace with clone_item
     def create_item(self, location, editor):
         raise NotImplementedError

common/lib/xmodule/xmodule/modulestore/mongo.py

@@ -58,6 +58,29 @@ class MongoModuleStore(ModuleStore):
         return XModuleDescriptor.load_from_json(
             item, MakoDescriptorSystem(load_item=self.get_item, resources_fs=None, render_template=render_to_string), self.default_class)
 
+    def get_items(self, location, default_class=None):
+        query = {}
+        for key, val in Location(location).dict().iteritems():
+            if val is not None:
+                query['location.{key}'.format(key=key)] = val
+
+        items = self.collection.find(
+            query,
+            sort=[('revision', pymongo.ASCENDING)],
+        )
+
+        # TODO (cpennington): Pass a proper resources_fs to the system
+        system = MakoDescriptorSystem(
+            load_item=self.get_item,
+            resources_fs=None,
+            render_template=render_to_string
+        )
+
+        return [
+            XModuleDescriptor.load_from_json(item, system, self.default_class)
+            for item in items
+        ]
+
     def create_item(self, location):
         """
         Create an empty item at the specified location with the supplied editor