update the PDF textbook url paths as well as update wiki_slug when importing

common/lib/xmodule/xmodule/contentstore/content.py

@@ -58,6 +58,16 @@ class StaticContent(object):
         else:
             return None
 
+    @staticmethod
+    def is_c4x_path(path_string):
+        return path_string.startswith('/{0}/'.format(XASSET_LOCATION_TAG))
+
+    @staticmethod
+    def renamespace_c4x_path(path_string, target_location):
+        location = StaticContent.get_location_from_path(path_string)
+        location = location.replace(org=target_location.org, course=target_location.course)
+        return StaticContent.get_url_path_from_location(location)
+
     @staticmethod
     def get_static_path_from_location(location):
         """

common/lib/xmodule/xmodule/modulestore/xml_importer.py

@@ -329,8 +329,28 @@ def remap_namespace(module, target_location_namespace):
         module.location = module.location._replace(tag=target_location_namespace.tag, org=target_location_namespace.org,
                                                    course=target_location_namespace.course)
     else:
+        original_location = module.location
+        #
+        # module is a course module
+        #
         module.location = module.location._replace(tag=target_location_namespace.tag, org=target_location_namespace.org,
                                                    course=target_location_namespace.course, name=target_location_namespace.name)
+        #
+        # There is more re-namespacing work we have to do when importing course modules
+        #
+
+        # remap pdf_textbook urls
+        for entry in module.pdf_textbooks:
+            for chapter in entry.get('chapters', []):
+                if StaticContent.is_c4x_path(chapter.get('url', '')):
+                    chapter['url'] = StaticContent.renamespace_c4x_path(chapter['url'], target_location_namespace)
+
+        # if there is a wiki_slug which is the same as the original location (aka default value),
+        # then remap that so the wiki doesn't point to the old Wiki.
+        if module.wiki_slug == original_location.course:
+            module.wiki_slug = target_location_namespace.course
+
+        module.save()
 
     # then remap children pointers since they too will be re-namespaced
     if hasattr(module, 'children'):