Make remote_gradebook use the new field instead of metadata

common/lib/xmodule/xmodule/course_module.py

@@ -175,7 +175,7 @@ class CourseDescriptor(SequenceDescriptor):
     no_grade = Boolean(help="True if this course isn't graded", default=False, scope=Scope.settings)
     disable_progress_graph = Boolean(help="True if this course shouldn't display the progress graph", default=False, scope=Scope.settings)
     pdf_textbooks = List(help="List of dictionaries containing pdf_textbook configuration", default=None, scope=Scope.settings)
-    remote_gradebook = String(scope=Scope.settings, default='')
+    remote_gradebook = Object(scope=Scope.settings, default={})
     allow_anonymous = Boolean(scope=Scope.settings, default=True)
     allow_anonymous_to_peers = Boolean(scope=Scope.settings, default=False)
     has_children = True

lms/templates/courseware/instructor_dashboard.html

@@ -113,7 +113,7 @@ function goto( mode)
   %if settings.MITX_FEATURES.get('REMOTE_GRADEBOOK_URL','') and instructor_access:
 
     <%
-        rg = course.metadata.get('remote_gradebook',{})
+        rg = course.remote_gradebook
     %>
 
     <h3>Export grades to remote gradebook</h3>
@@ -251,7 +251,7 @@ function goto( mode)
   %if settings.MITX_FEATURES.get('REMOTE_GRADEBOOK_URL','') and instructor_access:
 
     <%
-        rg = course.metadata.get('remote_gradebook',{})
+        rg = course.remote_gradebook
     %>
 
     <p>Pull enrollment from remote gradebook</p>