Merge pull request #1464 from MITx/bug/bug161

On first request for handouts, create the db record. (bug 160)

cms/djangoapps/contentstore/module_info_model.py

-import logging
 from static_replace import replace_static_urls
 from xmodule.modulestore.exceptions import ItemNotFoundError
 from xmodule.modulestore import Location
-from xmodule.modulestore.django import modulestore
-from lxml import etree
-import re
-from django.http import HttpResponseBadRequest, Http404
+from django.http import Http404
 
 
 def get_module_info(store, location, parent_location=None, rewrite_static_links=False):
@@ -15,7 +11,9 @@ def get_module_info(store, location, parent_location=None, rewrite_static_links=
         else:
             module = store.get_item(location)
     except ItemNotFoundError:
-    raise Http404
+        # create a new one
+        template_location = Location(['i4x', 'edx', 'templates', location.category, 'Empty'])
+        module = store.clone_item(template_location, location)
 
     data = module.definition['data']
     if rewrite_static_links:
@@ -40,7 +38,6 @@ def get_module_info(store, location, parent_location=None, rewrite_static_links=
 
 def set_module_info(store, location, post_data):
     module = None
-  isNew = False
     try:
         if location.revision is None:
             module = store.get_item(location)
@@ -54,7 +51,6 @@ def set_module_info(store, location, post_data):
         # presume that we have an 'Empty' template
         template_location = Location(['i4x', 'edx', 'templates', location.category, 'Empty'])
         module = store.clone_item(template_location, location)
-    isNew = True
 
     if post_data.get('data') is not None:
         data = post_data['data']