Add logic to display courses by start date and show the new overlay

common/djangoapps/student/views.py

@@ -40,7 +40,7 @@ from xmodule.modulestore.exceptions import ItemNotFoundError
 from datetime import date
 from collections import namedtuple
 
-from courseware.courses import get_courses_by_university
+from courseware.courses import get_courses_by_start_date
 from courseware.access import has_access
 
 from statsd import statsd
@@ -74,16 +74,17 @@ def index(request, extra_context={}, user=None):
     domain = settings.MITX_FEATURES.get('FORCE_UNIVERSITY_DOMAIN')	# normally False
     if domain==False:				# do explicit check, because domain=None is valid
         domain = request.META.get('HTTP_HOST')
-    universities = get_courses_by_university(None,
-                                             domain=domain)
+
+    courses = get_courses_by_start_date(None, domain=domain)
 
     # Get the 3 most recent news
     top_news = _get_news(top=3)
 
-    context = {'universities': universities, 'news': top_news}
+    context = {'courses': courses, 'news': top_news}
     context.update(extra_context)
     return render_to_response('index.html', context)
 
+
 def course_from_id(course_id):
     """Return the CourseDescriptor corresponding to this course_id"""
     course_loc = CourseDescriptor.id_to_location(course_id)

lms/djangoapps/courseware/courses.py

@@ -217,11 +217,66 @@ def get_courses_by_university(user, domain=None):
     '''
     # TODO: Clean up how 'error' is done.
     # filter out any courses that errored.
-    visible_courses = branding.get_visible_courses(domain)
+    visible_courses = get_courses(user, domain)
 
     universities = defaultdict(list)
     for course in visible_courses:
-        if not has_access(user, course, 'see_exists'):
-            continue
         universities[course.org].append(course)
+
     return universities
+
+
+def get_courses(user, domain=None):
+    '''
+    Returns a list of courses available, sorted by course.number
+    '''
+    courses = branding.get_visible_courses(domain)
+    courses = [c for c in courses if has_access(user, c, 'see_exists')]
+
+    return courses
+
+
+def get_courses_by_start_date(user, domain=None):
+    """
+    Returns a list of courses available, sorted by start date
+    """
+    visible_courses = get_courses(user, domain)
+    courses = _sort_courses_and_mark_new(visible_courses)
+
+    return courses
+
+
+def _sort_courses_and_mark_new(courses):
+    """Sort by course start date and mark which have not started yet"""
+    for course in courses:
+        days_to_start = _get_course_days_to_start(course)
+
+        # Add values as attributes, so they can be used in templates
+        setattr(course, '_days_to_start', days_to_start)
+        setattr(course, 'is_new', days_to_start > 1)
+
+    courses = sorted(courses, key=lambda d: d._days_to_start, reverse=True)
+
+    return courses
+
+
+def _get_course_days_to_start(course):
+    from datetime import datetime as dt
+    from time import mktime, gmtime
+
+    convert_to_datetime = lambda ts: dt.fromtimestamp(mktime(ts))
+
+    start_date = convert_to_datetime(course.start)
+
+    # If the course has a valid advertised date, use that instead
+    advertised_start = course.metadata.get('advertised_start', None)
+    if advertised_start:
+        try:
+            start_date = dt.strptime(advertised_start, "%Y-%m-%dT%H:%M")
+        except ValueError:
+            pass # Invalid date, keep using course.start
+
+    now = convert_to_datetime(gmtime())
+    days_to_start = (start_date - now).days
+
+    return days_to_start

lms/djangoapps/courseware/views.py

@@ -17,7 +17,7 @@ from django.views.decorators.cache import cache_control
 
 from courseware import grades
 from courseware.access import has_access
-from courseware.courses import (get_course_with_access, get_courses_by_university)
+from courseware.courses import (get_course_with_access, get_courses_by_start_date)
 import courseware.tabs as tabs
 from courseware.models import StudentModuleCache
 from module_render import toc_for_course, get_module, get_instance_module
@@ -68,9 +68,9 @@ def courses(request):
     '''
     Render "find courses" page.  The course selection work is done in courseware.courses.
     '''
-    universities = get_courses_by_university(request.user,
+    courses = get_courses_by_start_date(request.user,
                                              domain=request.META.get('HTTP_HOST'))
-    return render_to_response("courseware/courses.html", {'universities': universities})
+    return render_to_response("courseware/courses.html", {'courses': courses})
 
 
 def render_accordion(request, course, chapter, section):
@@ -317,7 +317,7 @@ def jump_to(request, course_id, location):
     except NoPathToItem:
         raise Http404("This location is not in any class: {0}".format(location))
 
-    # choose the appropriate view (and provide the necessary args) based on the 
+    # choose the appropriate view (and provide the necessary args) based on the
     # args provided by the redirect.
     # Rely on index to do all error handling and access control.
     if chapter is None:
@@ -328,7 +328,7 @@ def jump_to(request, course_id, location):
         return redirect('courseware_section', course_id=course_id, chapter=chapter, section=section)
     else:
         return redirect('courseware_position', course_id=course_id, chapter=chapter, section=section, position=position)
-        
+
 @ensure_csrf_cookie
 def course_info(request, course_id):
     """

lms/static/sass/shared/_course_object.scss

@@ -41,6 +41,31 @@
       width: 100%;
       @include transition(all, 0.15s, linear);
 
+      .status {
+        background: $blue;
+        color: white;
+        font-size: 10px;
+        left: 10px;
+        padding: 2px 10px;
+        @include border-radius(2px);
+        position: absolute;
+        text-transform: uppercase;
+        top: -6px;
+        z-index: 100;
+      }
+
+      .status:after {
+        border-bottom: 6px solid shade($blue, 50%);
+        border-right: 6px solid transparent;
+        content: "";
+        display: block;
+        height: 0;
+        position: absolute;
+        right: -6px;
+        top: 0;
+        width: 0;
+      }
+
       a:hover {
         text-decoration: none;
       }

lms/templates/course.html

@@ -5,6 +5,9 @@
 %>
 <%page args="course" />
 <article id="${course.id}" class="course">
+  %if course.is_new:
+    <span class="status">New</span>
+  %endif
   <a href="${reverse('about_course', args=[course.id])}">
   <div class="inner-wrapper">
       <header class="course-preview">

lms/templates/courseware/courses.html

@@ -20,21 +20,13 @@
     ## I'm removing this for now since we aren't using it for the fall.
     ## <%include file="course_filter.html" />
     <section class="courses">
-      <section class='university-column'>
-        %for course in universities['MITx']:
+      <ul class="courses-listing">
+        %for course in courses:
+        <li class="courses-listing-item">
           <%include file="../course.html" args="course=course" />
+        </li>
         %endfor
-      </section>
-      <section class='university-column'>
-        %for course in universities['HarvardX']:
-          <%include file="../course.html" args="course=course" />
-        %endfor
-      </section>
-      <section class='university-column last'>
-        %for course in universities['BerkeleyX']:
-          <%include file="../course.html" args="course=course" />
-        %endfor
-      </section>
+      </ul>
     </section>
   </section>
 </section>

lms/templates/index.html

@@ -106,21 +106,13 @@
       </section>
 
       <section class="courses">
-        <section class='university-column'>
-          %for course in universities['MITx']:
-            <%include file="course.html" args="course=course" />
+          <ul class="courses-listing">
+          %for course in courses:
+            <li class="courses-listing-item">
+              <%include file="course.html" args="course=course" />
+            </li>
           %endfor
-        </section>
-        <section class='university-column'>
-          %for course in universities['HarvardX']:
-            <%include file="course.html" args="course=course" />
-          %endfor
-        </section>
-        <section class='university-column last'>
-          %for course in universities['BerkeleyX']:
-            <%include file="course.html" args="course=course" />
-          %endfor
-        </section>
+          </ul>
       </section>
     </section>
   </section>