initial commit. Add 'import_path' field to the GridFS so that when we export, we know where it originated from

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

@@ -12,13 +12,16 @@ from .django import contentstore
 from PIL import Image
 
 class StaticContent(object):
-    def __init__(self, loc, name, content_type, data, last_modified_at=None, thumbnail_location=None):
+    def __init__(self, loc, name, content_type, data, last_modified_at=None, thumbnail_location=None, import_path=None):
         self.location = loc
         self.name = name #a display string which can be edited, and thus not part of the location which needs to be fixed
         self.content_type = content_type
         self.data = data
         self.last_modified_at = last_modified_at
         self.thumbnail_location = thumbnail_location
+        # optional information about where this file was imported from. This is needed to support import/export 
+        # cycles
+        self.import_path = import_path
 
     @property
     def is_thumbnail(self):

common/lib/xmodule/xmodule/contentstore/mongo.py

@@ -11,6 +11,7 @@ import logging
 
 from .content import StaticContent, ContentStore
 from xmodule.exceptions import NotFoundError
+from fs.osfs import OSFS
 
 
 class MongoContentStore(ContentStore):
@@ -33,7 +34,7 @@ class MongoContentStore(ContentStore):
             self.fs.delete(id)
 
         with self.fs.new_file(_id = id, filename=content.get_url_path(), content_type=content.content_type, 
-            displayname=content.name, thumbnail_location=content.thumbnail_location) as fp:
+            displayname=content.name, thumbnail_location=content.thumbnail_location, import_path=content.import_path) as fp:
 
             fp.write(content.data)
         
@@ -45,10 +46,18 @@ class MongoContentStore(ContentStore):
         try:
             with self.fs.get(id) as fp:
                 return StaticContent(location, fp.displayname, fp.content_type, fp.read(), 
-                    fp.uploadDate, thumbnail_location = fp.thumbnail_location if 'thumbnail_location' in fp else None)
+                    fp.uploadDate, thumbnail_location = fp.thumbnail_location if 'thumbnail_location' in fp else None,
+                    import_path = fp.import_path if 'import_path' in fp else None)
         except NoFile:
             raise NotFoundError()
 
+    def export(self, location, output_directory):
+        content = self.find(location)
+        disk_fs = OSFS(output_directory)
+
+        with disk_fs.open('course.xml', 'wb') as course_xml:
+            course_xml.write(content.data)
+
     def get_all_content_thumbnails_for_course(self, location):
         return self._get_all_content_for_course(location, get_thumbnails = True)
 

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

@@ -32,7 +32,7 @@ def import_static_content(modules, course_loc, course_data_path, static_content_
                 with open(content_path, 'rb') as f:
                     data = f.read()
 
-                content = StaticContent(content_loc, filename, mime_type, data)
+                content = StaticContent(content_loc, filename, mime_type, data, import_path = fullname_with_subpath)
 
                 # first let's save a thumbnail so we can get back a thumbnail location
                 thumbnail_content = static_content_store.generate_thumbnail(content)
@@ -66,7 +66,7 @@ def verify_content_links(module, base_dir, static_content_store, link, remap_dic
                 with open(static_pathname, 'rb') as f:
                     data = f.read()
 
-                content = StaticContent(content_loc, filename, mime_type, data) 
+                content = StaticContent(content_loc, filename, mime_type, data, import_path = path) 
 
                 # first let's save a thumbnail so we can get back a thumbnail location
                 thumbnail_content = static_content_store.generate_thumbnail(content)

common/lib/xmodule/xmodule/xml_module.py

@@ -98,7 +98,7 @@ class XmlDescriptor(XModuleDescriptor):
 
     metadata_to_strip = ('data_dir', 
             # cdodge: @TODO: We need to figure out a way to export out 'tabs' and 'grading_policy' which is on the course
-            'tabs', 'grading_policy',
+            'tabs', 'grading_policy', 'is_draft', 'published_by', 'published_date', 
            # VS[compat] -- remove the below attrs once everything is in the CMS
            'course', 'org', 'url_name', 'filename')
 

lms/djangoapps/courseware/courses.py

@@ -148,7 +148,7 @@ def get_course_about_section(course, section_key):
             request = get_request_for_thread()
 
             loc = course.location._replace(category='about', name=section_key)
-            course_module = get_module(request.user, request, loc, None, course.id, not_found_ok = True, wrap_xmodule_display = False)
+            course_module = get_module(request.user, request, loc, None, course.id, not_found_ok = True, wrap_xmodule_display = True)
 
             html = ''
 
@@ -186,7 +186,7 @@ def get_course_info_section(request, cache, course, section_key):
 
 
     loc = Location(course.location.tag, course.location.org, course.location.course, 'course_info', section_key)
-    course_module = get_module(request.user, request, loc, cache, course.id, wrap_xmodule_display = False)
+    course_module = get_module(request.user, request, loc, cache, course.id, wrap_xmodule_display = True)
     html = ''
 
     if course_module is not None:

rakefile

@@ -422,6 +422,18 @@ namespace :cms do
   end
 end
 
+namespace :cms do
+  desc "Export course data to a tar.gz file"
+  task :export do
+    if ENV['COURSE_ID'] and ENV['OUTPUT_PATH']
+      sh(django_admin(:cms, :dev, :export, ENV['COURSE_ID'], ENV['OUTPUT_PATH']))
+    else
+      raise "Please specify a COURSE_ID and OUTPUT_PATH.\n" +
+        "Example: \`rake cms:export COURSE_ID=MITx/12345/name OUTPUT_PATH=foo.tar.gz\`"
+    end
+  end
+end
+
 desc "Build a properties file used to trigger autodeploy builds"
 task :autodeploy_properties do
     File.open("autodeploy.properties", "w") do |file|