Get capa problems to display from a keystore

common/lib/xmodule/setup.py

@@ -19,9 +19,10 @@ setup(
             "section = xmodule.translation_module:SemanticSectionDescriptor",
             "sequential = xmodule.seq_module:SequenceDescriptor",
             "vertical = xmodule.vertical_module:VerticalDescriptor",
+            "problem = xmodule.capa_module:CapaDescriptor",
             "problemset = xmodule.seq_module:SequenceDescriptor",
-            "videosequence = xmodule.seq_module:SequenceDescriptor",
             "video = xmodule.video_module:VideoDescriptor",
+            "videosequence = xmodule.seq_module:SequenceDescriptor",
         ]
     }
 )

common/lib/xmodule/vertical_module.py

@@ -10,6 +10,9 @@ class_priority = ['video', 'problem']
 class VerticalModule(XModule):
     ''' Layout module for laying out submodules vertically.'''
     def get_html(self):
+        if self.contents is None:
+            self.contents = [child.get_html() for child in self.get_display_items()]
+
         return self.system.render_template('vert_module.html', {
             'items': self.contents
         })
@@ -31,7 +34,7 @@ class VerticalModule(XModule):
 
     def __init__(self, system, location, definition, instance_state=None, shared_state=None, **kwargs):
         XModule.__init__(self, system, location, definition, instance_state, shared_state, **kwargs)
-        self.contents = [child.get_html() for child in self.get_display_items()]
+        self.contents = None
 
 
 class VerticalDescriptor(SequenceDescriptor):

lms/djangoapps/courseware/module_render.py

@@ -60,13 +60,7 @@ class I4xSystem(object):
         '''
         self.ajax_url = ajax_url
         self.track_function = track_function
-        if not filestore:
-            self.filestore = OSFS(settings.DATA_DIR)
-        else:
-            self.filestore = filestore
-            if settings.DEBUG:
-                log.info("[courseware.module_render.I4xSystem] filestore path = %s",
-                         filestore)
+        self.filestore = filestore
         self.get_module = get_module
         self.render_function = render_function
         self.render_template = render_template
@@ -241,7 +235,7 @@ def get_module(user, request, location, student_module_cache, position=None):
     shared_state = shared_module.state if shared_module is not None else None
 
     # Setup system context for module instance
-    ajax_url = settings.MITX_ROOT_URL + '/modx/' + descriptor.type + '/' + descriptor.url + '/'
+    ajax_url = settings.MITX_ROOT_URL + '/modx/' + descriptor.url + '/'
 
     def _get_module(location):
         (module, _, _, _) = get_module(user, request, location, student_module_cache, position)
@@ -330,94 +324,33 @@ def render_x_module(user, request, module_xml, student_module_cache, position=No
     return context
 
 
-def modx_dispatch(request, module=None, dispatch=None, id=None):
+def modx_dispatch(request, dispatch=None, id=None):
     ''' Generic view for extensions. This is where AJAX calls go.
 
     Arguments:
 
       - request -- the django request.
-      - module -- the type of the module, as used in the course configuration xml.
-                  e.g. 'problem', 'video', etc
       - dispatch -- the command string to pass through to the module's handle_ajax call
            (e.g. 'problem_reset').  If this string contains '?', only pass
            through the part before the first '?'.
-      - id -- the module id.  Used to look up the student module.
-            e.g. filenamexformularesponse
+      - id -- the module id. Used to look up the XModule instance
     '''
     # ''' (fix emacs broken parsing)
-    if not request.user.is_authenticated():
-        return redirect('/')
-
-    # python concats adjacent strings
-    error_msg = ("We're sorry, this module is temporarily unavailable. "
-                 "Our staff is working to fix it as soon as possible")
 
     # If there are arguments, get rid of them
     dispatch, _, _ = dispatch.partition('?')
 
-    ajax_url = '{root}/modx/{module}/{id}'.format(root=settings.MITX_ROOT_URL,
-                                                  module=module, id=id)
-    coursename = multicourse_settings.get_coursename_from_request(request)
-    if coursename and settings.ENABLE_MULTICOURSE:
-        xp = multicourse_settings.get_course_xmlpath(coursename)
-        data_root = settings.DATA_DIR + xp
-    else:
-        data_root = settings.DATA_DIR
+    student_module_cache = StudentModuleCache(request.user, keystore().get_item(id))
+    instance, instance_module, shared_module, module_type = get_module(request.user, request, id, student_module_cache)
 
-    # Grab the XML corresponding to the request from course.xml
-    try:
-        xml = content_parser.module_xml(request.user, module, 'id', id, coursename)
-    except:
-        log.exception(
-            "Unable to load module during ajax call. module=%s, dispatch=%s, id=%s",
-            module, dispatch, id)
-        if accepts(request, 'text/html'):
-            return render_to_response("module-error.html", {})
-        else:
-            response = HttpResponse(json.dumps({'success': error_msg}))
-        return response
-
-    module_xml = etree.fromstring(xml)
-    student_module_cache = StudentModuleCache(request.user, module_xml)
-    (instance, instance_state, shared_state, module_type) = get_module(
-            request.user, request, module_xml,
-            student_module_cache, None)
-
-    if instance_state is None:
-        log.debug("Couldn't find module '%s' for user '%s' and id '%s'",
-                  module, request.user, id)
+    if instance_module is None:
+        log.debug("Couldn't find module '%s' for user '%s'",
+                  id, request.user)
         raise Http404
 
-    oldgrade = instance_state.grade
-    old_instance_state = instance_state.state
-    old_shared_state = shared_state.state if shared_state is not None else None
-
-    module_from_xml = make_module_from_xml_fn(
-        request.user, request, student_module_cache, None)
-
-    # Create the module
-    system = I4xSystem(track_function=make_track_function(request),
-                       render_function=None,
-                       module_from_xml=module_from_xml,
-                       render_template=render_to_string,
-                       ajax_url=ajax_url,
-                       request=request,
-                       filestore=OSFS(data_root),
-                       )
-
-    try:
-        module_class = xmodule.get_module_class(module)
-        instance = module_class(
-            system, xml, id,
-            instance_state=old_instance_state,
-            shared_state=old_shared_state)
-    except:
-        log.exception("Unable to load module instance during ajax call")
-        if accepts(request, 'text/html'):
-            return render_to_response("module-error.html", {})
-        else:
-            response = HttpResponse(json.dumps({'success': error_msg}))
-        return response
+    oldgrade = instance_module.grade
+    old_instance_state = instance_module.state
+    old_shared_state = shared_module.state if shared_module is not None else None
 
     # Let the module handle the AJAX
     try:
@@ -427,16 +360,16 @@ def modx_dispatch(request, module=None, dispatch=None, id=None):
         raise
 
     # Save the state back to the database
-    instance_state.state = instance.get_instance_state()
+    instance_module.state = instance.get_instance_state()
     if instance.get_score():
-        instance_state.grade = instance.get_score()['score']
-    if instance_state.grade != oldgrade or instance_state.state != old_instance_state:
-        instance_state.save()
-
-    if shared_state is not None:
-        shared_state.state = instance.get_shared_state()
-        if shared_state.state != old_shared_state:
-            shared_state.save()
+        instance_module.grade = instance.get_score()['score']
+    if instance_module.grade != oldgrade or instance_module.state != old_instance_state:
+        instance_module.save()
+
+    if shared_module is not None:
+        shared_module.state = instance.get_shared_state()
+        if shared_module.state != old_shared_state:
+            shared_module.save()
 
     # Return whatever the module wanted to return to the client/caller
     return HttpResponse(ajax_return)

lms/lib/dogfood/views.py

@@ -174,7 +174,7 @@ def quickedit(request, id=None, qetemplate='quickedit.html',coursename=None):
         module = 'problem'
         xml = content_parser.module_xml(request.user, module, 'id', id, coursename)
     
-        ajax_url = settings.MITX_ROOT_URL + '/modx/'+module+'/'+id+'/'
+        ajax_url = settings.MITX_ROOT_URL + '/modx/'+id+'/'
     
         # Create the module (instance of capa_module.Module)
         system = I4xSystem(track_function = make_track_function(request), 

lms/static/coffee/src/courseware.coffee

@@ -20,8 +20,8 @@ class @Courseware
       id = $(this).attr('id').replace(/video_/, '')
       new Video id, $(this).data('streams')
     $('.course-content .problems-wrapper').each ->
-      id = $(this).attr('id').replace(/problem_/, '')
-      new Problem id, $(this).data('url')
+      id = $(this).attr('problem-id')
+      new Problem id, $(this).attr('id'), $(this).data('url')
     $('.course-content .histogram').each ->
       id = $(this).attr('id').replace(/histogram_/, '')
       new Histogram id, $(this).data('histogram')

lms/static/coffee/src/modules/problem.coffee

 class @Problem
-  constructor: (@id, url) ->
-    @element = $("#problem_#{id}")
+  constructor: (@id, @element_id, url) ->
+    @element = $("##{element_id}")
     @render()
 
   $: (selector) ->
@@ -26,13 +26,13 @@ class @Problem
       @element.html(content)
       @bind()
     else
-      $.postWithPrefix "/modx/problem/#{@id}/problem_get", (response) =>
+      $.postWithPrefix "/modx/#{@id}/problem_get", (response) =>
         @element.html(response.html)
         @bind()
 
   check: =>
     Logger.log 'problem_check', @answers
-    $.postWithPrefix "/modx/problem/#{@id}/problem_check", @answers, (response) =>
+    $.postWithPrefix "/modx/#{@id}/problem_check", @answers, (response) =>
       switch response.success
         when 'incorrect', 'correct'
           @render(response.contents)
@@ -42,14 +42,14 @@ class @Problem
 
   reset: =>
     Logger.log 'problem_reset', @answers
-    $.postWithPrefix "/modx/problem/#{@id}/problem_reset", id: @id, (response) =>
+    $.postWithPrefix "/modx/#{@id}/problem_reset", id: @id, (response) =>
         @render(response.html)
         @updateProgress response
 
   show: =>
     if !@element.hasClass 'showed'
       Logger.log 'problem_show', problem: @id
-      $.postWithPrefix "/modx/problem/#{@id}/problem_show", (response) =>
+      $.postWithPrefix "/modx/#{@id}/problem_show", (response) =>
         answers = response.answers
         $.each answers, (key, value) =>
           if $.isArray(value)
@@ -69,7 +69,7 @@ class @Problem
 
   save: =>
     Logger.log 'problem_save', @answers
-    $.postWithPrefix "/modx/problem/#{@id}/problem_save", @answers, (response) =>
+    $.postWithPrefix "/modx/#{@id}/problem_save", @answers, (response) =>
       if response.success
         alert 'Saved'
       @updateProgress response
@@ -94,4 +94,4 @@ class @Problem
       element.schematic.update_value()
     @$(".CodeMirror").each (index, element) ->
       element.CodeMirror.save() if element.CodeMirror.save
-    @answers = @$("[id^=input_#{@id}_]").serialize()
+    @answers = @$("[id^=input_#{@element_id}_]").serialize()

lms/static/coffee/src/modules/sequence.coffee

@@ -88,7 +88,7 @@ class @Sequence
     if @position != new_position
       if @position != undefined
         @mark_visited @position
-        $.postWithPrefix "/modx/#{@tag}/#{@id}/goto_position", position: new_position
+        $.postWithPrefix "/modx/#{@id}/goto_position", position: new_position
         
       @mark_active new_position
       @$('#seq_content').html @elements[new_position - 1].content

lms/templates/problem_ajax.html

-<section id="problem_${id}" class="problems-wrapper" data-url="${ajax_url}"></section>
+<section id="problem_${element_id}" class="problems-wrapper" problem-id="${id}" data-url="${ajax_url}"></section>

lms/urls.py

@@ -57,7 +57,7 @@ if settings.COURSEWARE_ENABLED:
         url(r'^courseware/(?P<course>[^/]*)/$', 'courseware.views.index', name="courseware_course"),
         url(r'^jumpto/(?P<probname>[^/]+)/$', 'courseware.views.jump_to'),
         url(r'^section/(?P<section>[^/]*)/$', 'courseware.views.render_section'),
-        url(r'^modx/(?P<module>[^/]*)/(?P<id>[^/]*)/(?P<dispatch>[^/]*)$', 'courseware.module_render.modx_dispatch'), #reset_problem'),
+        url(r'^modx/(?P<id>.*?)/(?P<dispatch>[^/]*)$', 'courseware.module_render.modx_dispatch'), #reset_problem'),
         url(r'^profile$', 'courseware.views.profile'),
         url(r'^profile/(?P<student_id>[^/]*)/$', 'courseware.views.profile'),
         url(r'^change_setting$', 'student.views.change_setting'),