populate dropdown

lms/djangoapps/django_comment_client/forum/views.py

@@ -212,6 +212,7 @@ def single_thread(request, course_id, discussion_id, thread_id):
 
     else:
         course = get_course_with_access(request.user, course_id, 'load')
+        category_map = utils.get_discussion_category_map(course)
         threads, query_params = get_threads(request, course_id)
 
         recent_active_threads = cc.search_recent_active_threads(
@@ -238,6 +239,7 @@ def single_thread(request, course_id, discussion_id, thread_id):
             'course_id': course.id,
             'thread_id': thread_id,
             'threads': json.dumps(threads),
+            'category_map': category_map,
         }
 
         return render_to_response('discussion/single_thread.html', context)

lms/djangoapps/django_comment_client/utils.py

+from collections import defaultdict
 from importlib import import_module
 from courseware.models import StudentModuleCache
 from courseware.module_render import get_module
@@ -21,8 +22,6 @@ import pystache_custom as pystache
 _FULLMODULES = None
 _DISCUSSIONINFO = None
 
-
-
 def extract(dic, keys):
     return {k: dic.get(k) for k in keys}
 
@@ -40,80 +39,101 @@ def merge_dict(dic1, dic2):
 def get_full_modules():
     global _FULLMODULES
     if not _FULLMODULES:
-        class_path = settings.MODULESTORE['default']['ENGINE']
-        module_path, _, class_name = class_path.rpartition('.')
-        class_ = getattr(import_module(module_path), class_name)
-        modulestore = class_(**dict(settings.MODULESTORE['default']['OPTIONS'].items() + [('eager', True)]))
-        _FULLMODULES = modulestore.modules
+        _FULLMODULES = modulestore().modules
     return _FULLMODULES
 
-def get_categorized_discussion_info(request, course):
+def get_discussion_id_map(course):
     """
         return a dict of the form {category: modules}
     """
     global _DISCUSSIONINFO
     if not _DISCUSSIONINFO:
-        initialize_discussion_info(request, course)
-    return _DISCUSSIONINFO['categorized']
+        initialize_discussion_info(course)
+    return _DISCUSSIONINFO['id_map']
 
-def get_discussion_title(request, course, discussion_id):
+def get_discussion_title(course, discussion_id):
     global _DISCUSSIONINFO
     if not _DISCUSSIONINFO:
-        initialize_discussion_info(request, course)
+        initialize_discussion_info(course)
     title = _DISCUSSIONINFO['by_id'].get(discussion_id, {}).get('title', '(no title)')
     return title
 
-def initialize_discussion_info(request, course):
+def get_discussion_category_map(course):
+
+    global _DISCUSSIONINFO
+    if not _DISCUSSIONINFO:
+        initialize_discussion_info(course)
+    return _DISCUSSIONINFO['category_map']
+
+def initialize_discussion_info(course):
 
     global _DISCUSSIONINFO
     if _DISCUSSIONINFO:
         return
 
     course_id = course.id
-    _, course_name, _ = course_id.split('/')
-    user = request.user
     url_course_id = course_id.replace('/', '_').replace('.', '_')
 
-    _is_course_discussion = lambda x: x[0].dict()['category'] == 'discussion' \
-                         and x[0].dict()['course'] == course_name
-    
-    _get_module_descriptor = operator.itemgetter(1)
-
-    def _get_module(module_descriptor):
-        print module_descriptor
-        module = get_module(user, request, module_descriptor.location, student_module_cache)
-        return module
-
-    def _extract_info(module):
-        return {
-            'title': module.title,
-            'discussion_id': module.discussion_id,
-            'category': module.discussion_category,
-        }
-
-    def _pack_with_id(info):
-        return (info['discussion_id'], info)
-
-    discussion_module_descriptors = map(_get_module_descriptor,
-                                        filter(_is_course_discussion,
-                                               get_full_modules().items()))
-
-    student_module_cache = StudentModuleCache.cache_for_descriptor_descendents(user, course)
-
-    discussion_info = map(_extract_info, map(_get_module, discussion_module_descriptors))
+    all_modules = get_full_modules()[course_id]
+
+    discussion_id_map = {}
+    unexpanded_category_map = defaultdict(list)
+    for location, module in all_modules.items():
+        if location.category == 'discussion':
+            id = module.metadata['id']
+            category = module.metadata['discussion_category']
+            title = module.metadata['for']
+            sort_key = module.metadata.get('sort_key', title)
+            discussion_id_map[id] = {"location": location, "title": title}
+            category = " / ".join([x.strip() for x in category.split("/")])
+            unexpanded_category_map[category].append({"title": title, "id": id,
+                "sort_key": sort_key})
+
+    category_map = {"entries": defaultdict(dict), "subcategories": defaultdict(dict)} 
+    for category_path, entries in unexpanded_category_map.items():
+        node = category_map["subcategories"]
+        path = [x.strip() for x in category_path.split("/")]
+        for level in path[:-1]:
+            if level not in node:
+                node[level] = {"subcategories": defaultdict(dict), 
+                               "entries": defaultdict(dict),
+                               "sort_key": level} 
+            node = node[level]["subcategories"]
+
+        level = path[-1]
+        if level not in node:
+            node[level] = {"subcategories": defaultdict(dict), 
+                            "entries": defaultdict(dict), 
+                            "sort_key": level}
+        for entry in entries:
+            node[level]["entries"][entry["title"]] = {"id": entry["id"], 
+                                                      "sort_key": entry["sort_key"]}
+
+    def sort_map_entries(map):
+        things = []
+        for title, entry in map["entries"].items():
+            things.append((title, entry))
+        for title, category in map["subcategories"].items():
+            things.append((title, category))
+            sort_map_entries(map["subcategories"][title])
+        map["children"] = [x[0] for x in sorted(things, key=lambda x: x[1]["sort_key"])]
+
+    sort_map_entries(category_map)
+    #for level in category_map["subcategories"].values():
+    #    sort_map_entries(level)
 
     _DISCUSSIONINFO = {}
 
-    _DISCUSSIONINFO['by_id'] = dict(map(_pack_with_id, discussion_info))
+    _DISCUSSIONINFO['id_map'] = discussion_id_map
 
-    _DISCUSSIONINFO['categorized'] = dict((category, list(l)) \
-                for category, l in itertools.groupby(discussion_info, operator.itemgetter('category')))
+    _DISCUSSIONINFO['category_map'] = category_map
 
-    _DISCUSSIONINFO['categorized']['General'] = [{
-        'title': 'General discussion',
-        'discussion_id': url_course_id,
-        'category': 'General',
-    }]
+    # TODO delete me when you've used me
+    #_DISCUSSIONINFO['categorized']['General'] = [{
+    #    'title': 'General',
+    #    'discussion_id': url_course_id,
+    #    'category': 'General',
+    #}]
 
 class JsonResponse(HttpResponse):
     def __init__(self, data=None):

lms/templates/discussion/_filter_dropdown.html

+<%def name="render_dropdown(map)">
+    % for child in map["children"]:
+        % if child in map["entries"]:
+            ${render_entry(map["entries"], child)}
+        %else:
+            ${render_category(map["subcategories"], child)}
+        %endif
+    %endfor
+</%def>
+
+<%def name="render_entry(entries, entry)">
+    <li><a href="#"><span class="board-name" data-discussion_id="${entries[entry]}">${entry}</span> <span class="unread">1,248</span></a></li>
+</%def>
+
+<%def name="render_category(categories, category)">
+    <li>
+        <a href="#"><span class="board-name">${category}</span></a>
+        <ul>
+            ${render_dropdown(categories[category])}
+        </ul>
+    </li>
+</%def>
+
+<ul class="board-drop-menu">
+    ${render_dropdown(category_map)}
+</ul>

lms/templates/discussion/single_thread.html

@@ -132,24 +132,7 @@
       <a href="#" class="board-drop-icon"></a>
       <a href="#" class="board-drop-btn"><span class="current-board">Homework / Week 1</span> <span class="drop-arrow">▾</span></a>
     </div>
-    <ul class="board-drop-menu">
-      <li><a href="#"><span class="board-name">All</span> <span class="unread">1,248</span></a></li>
-      <li><a href="#"><span class="board-name">Following</span></a></li>
-      <li><a href="#"><span class="board-name">General</span> <span class="unread">124</span></a></li>
-      <li>
-        <a href="#"><span class="board-name">Homework</span> <span class="unread">27</span></a>
-        <ul>
-          <li><a href="#"><span class="board-name">Week 1</span> <span class="unread">24</span></a></li>
-          <li>
-            <a href="#"><span class="board-name">Week 2</span> <span class="unread">27</span></a>
-            <ul>
-              <li><a href="#"><span class="board-name">Problem 1</span> <span class="unread">14</span></a></li>
-              <li><a href="#"><span class="board-name">Problem 2</span> <span class="unread">13</span></a></li>
-            </ul>
-          </li>
-        </ul>
-      </li>
-    </ul>
+    <%include file="_filter_dropdown.html" />
     <div class="search">
       <form class="post-search">
         <input type="text" placeholder="Search all discussions" class="post-search-field">