Hide show_timezone from Advanced Settings and migrate courses with…

Hide show_timezone from Advanced Settings and migrate courses with show_timezone=False to using due_date_display_format.

cms/djangoapps/models/settings/course_metadata.py

@@ -20,7 +20,8 @@ class CourseMetadata(object):
                      'enrollment_end',
                      'tabs',
                      'graceperiod',
-                     'checklists']
+                     'checklists',
+                     'show_timezone']
 
     @classmethod
     def fetch(cls, course_location):

common/lib/xmodule/xmodule/course_module.py

@@ -337,7 +337,10 @@ class CourseFields(object):
                                       "action_external": False}]}
         ])
     info_sidebar_name = String(scope=Scope.settings, default='Course Handouts')
-    show_timezone = Boolean(help="True if timezones should be shown on dates in the courseware", scope=Scope.settings, default=True)
+    show_timezone = Boolean(
+        help="True if timezones should be shown on dates in the courseware. Deprecated in favor of due_date_display_format.",
+        scope=Scope.settings, default=True
+    )
     due_date_display_format = String(
         help="Format supported by strftime for displaying due dates. Takes precedence over show_timezone.",
         scope=Scope.settings, default=None
@@ -395,7 +398,13 @@ class CourseDescriptor(CourseFields, SequenceDescriptor):
             elif isinstance(self.location, CourseLocator):
                 self.wiki_slug = self.location.course_id or self.display_name
 
-        msg = None
+        if self.due_date_display_format is None and self.show_timezone is False:
+            # For existing courses with show_timezone set to False (and no due_date_display_format specified),
+            # set the due_date_display_format to what would have been shown previously (with no timezone).
+            # Then remove show_timezone so that if the user clears out the due_date_display_format,
+            # they get the default date display.
+            self.due_date_display_format = u"%b %d, %Y at %H:%M"
+            delattr(self, 'show_timezone')
 
         # NOTE: relies on the modulestore to call set_grading_policy() right after
         # init.  (Modulestore is in charge of figuring out where to load the policy from)

common/lib/xmodule/xmodule/tests/test_date_utils.py

@@ -12,12 +12,6 @@ def test_get_default_time_display():
     assert_equals(
         "Mar 12, 1992 at 15:03 UTC",
         get_default_time_display(test_time))
-    assert_equals(
-        "Mar 12, 1992 at 15:03 UTC",
-        get_default_time_display(test_time, True))
-    assert_equals(
-        "Mar 12, 1992 at 15:03",
-        get_default_time_display(test_time, False))
 
 
 def test_get_default_time_display_notz():
@@ -25,12 +19,6 @@ def test_get_default_time_display_notz():
     assert_equals(
         "Mar 12, 1992 at 15:03 UTC",
         get_default_time_display(test_time))
-    assert_equals(
-        "Mar 12, 1992 at 15:03 UTC",
-        get_default_time_display(test_time, True))
-    assert_equals(
-        "Mar 12, 1992 at 15:03",
-        get_default_time_display(test_time, False))
 
 
 def test_get_time_display_return_empty():
@@ -42,17 +30,16 @@ def test_get_time_display_return_empty():
 def test_get_time_display():
     test_time = datetime(1992, 3, 12, 15, 3, 30, tzinfo=UTC)
     assert_equals("dummy text", get_time_display(test_time, 'dummy text'))
-    assert_equals("Mar 12 1992", get_time_display(test_time, '%b %d %Y', True))
-    assert_equals("Mar 12 1992 UTC", get_time_display(test_time, '%b %d %Y %Z', False))
-    assert_equals("Mar 12 15:03", get_time_display(test_time, '%b %d %H:%M', False))
+    assert_equals("Mar 12 1992", get_time_display(test_time, '%b %d %Y'))
+    assert_equals("Mar 12 1992 UTC", get_time_display(test_time, '%b %d %Y %Z'))
+    assert_equals("Mar 12 15:03", get_time_display(test_time, '%b %d %H:%M'))
 
 
 def test_get_time_pass_through():
     test_time = datetime(1992, 3, 12, 15, 3, 30, tzinfo=UTC)
     assert_equals("Mar 12, 1992 at 15:03 UTC", get_time_display(test_time))
-    assert_equals("Mar 12, 1992 at 15:03", get_time_display(test_time, None, False))
-    assert_equals("Mar 12, 1992 at 15:03", get_time_display(test_time, "%", False))
-    assert_equals("Mar 12, 1992 at 15:03 UTC", get_time_display(test_time, "%", True))
+    assert_equals("Mar 12, 1992 at 15:03 UTC", get_time_display(test_time, None))
+    assert_equals("Mar 12, 1992 at 15:03 UTC", get_time_display(test_time, "%"))
 
 
 # pylint: disable=W0232
@@ -72,12 +59,6 @@ def test_get_default_time_display_no_tzname():
     assert_equals(
         "Mar 12, 1992 at 15:03-0300",
         get_default_time_display(test_time))
-    assert_equals(
-        "Mar 12, 1992 at 15:03-0300",
-        get_default_time_display(test_time, True))
-    assert_equals(
-        "Mar 12, 1992 at 15:03",
-        get_default_time_display(test_time, False))
 
 
 def test_almost_same_datetime():

common/lib/xmodule/xmodule/util/date_utils.py

@@ -2,51 +2,46 @@
 Convenience methods for working with datetime objects
 """
 from datetime import timedelta
-from django.utils.translation import ugettext as _
 
 
-def get_default_time_display(dt, show_timezone=True):
+def get_default_time_display(dt):
     """
     Converts a datetime to a string representation. This is the default
     representation used in Studio and LMS.
-    It is of the form "Apr 09, 2013 at 16:00" or "Apr 09, 2013 at 16:00 UTC",
-    depending on the value of show_timezone.
+    It is of the form "Apr 09, 2013 at 16:00 UTC".
 
     If None is passed in for dt, an empty string will be returned.
-    The default value of show_timezone is True.
     """
     if dt is None:
         return u""
-    timezone = u""
-    if show_timezone:
-        if dt.tzinfo is not None:
-            try:
-                timezone = u" " + dt.tzinfo.tzname(dt)
-            except NotImplementedError:
-                timezone = dt.strftime('%z')
-        else:
-            timezone = u" UTC"
-    return unicode(dt.strftime(u"%b %d, %Y {at} %H:%M{tz}")).format(
-        at=_(u"at"), tz=timezone).strip()
-
-
-def get_time_display(dt, format_string=None, show_timezone=True):
+    if dt.tzinfo is not None:
+        try:
+            timezone = u" " + dt.tzinfo.tzname(dt)
+        except NotImplementedError:
+            timezone = dt.strftime('%z')
+    else:
+        timezone = u" UTC"
+    return unicode(dt.strftime(u"%b %d, %Y at %H:%M{tz}")).format(
+        tz=timezone).strip()
+
+
+def get_time_display(dt, format_string=None):
     """
     Converts a datetime to a string representation.
 
     If None is passed in for dt, an empty string will be returned.
+
     If the format_string is None, or if format_string is improperly
-    formatted, this method will return the value from `get_default_time_display`
-    (passing in the show_timezone argument).
-    If the format_string is specified, show_timezone is ignored.
+    formatted, this method will return the value from `get_default_time_display`.
+
     format_string should be a unicode string that is a valid argument for datetime's strftime method.
     """
     if dt is None or format_string is None:
-        return get_default_time_display(dt, show_timezone)
+        return get_default_time_display(dt)
     try:
         return unicode(dt.strftime(format_string))
     except ValueError:
-        return get_default_time_display(dt, show_timezone)
+        return get_default_time_display(dt)
 
 
 def almost_same_datetime(dt1, dt2, allowed_delta=timedelta(minutes=1)):

common/test/data/due_date/policies/2013_fall/policy.json

-{"course/2013_fall": {"tabs": [{"type": "courseware"}, {"type": "course_info", "name": "Course Info"}, {"type": "textbooks"}, {"type": "discussion", "name": "Discussion"}, {"type": "wiki", "name": "Wiki"}, {"type": "progress", "name": "Progress"}], "display_name": "due_date", "discussion_topics": {"General": {"id": "i4x-edX-due_date-course-2013_fall"}}}}
+{"course/2013_fall": {"tabs": [{"type": "courseware"}, {"type": "course_info", "name": "Course Info"}, {"type": "textbooks"}, {"type": "discussion", "name": "Discussion"}, {"type": "wiki", "name": "Wiki"}, {"type": "progress", "name": "Progress"}], "display_name": "due_date", "discussion_topics": {"General": {"id": "i4x-edX-due_date-course-2013_fall"}}, "show_timezone": "false"}}
\ No newline at end of file

lms/djangoapps/courseware/tests/test_views.py

@@ -14,7 +14,7 @@ from student.models import CourseEnrollment
 from student.tests.factories import AdminFactory
 from mitxmako.middleware import MakoMiddleware
 
-from xmodule.modulestore.django import modulestore
+from xmodule.modulestore.django import modulestore, clear_existing_modulestores
 
 import courseware.views as views
 from xmodule.modulestore import Location
@@ -254,6 +254,8 @@ class ViewsTestCase(TestCase):
         def set_show_timezone(show_timezone):
             """
             Sets the show_timezone property and returns value from get_text function.
+
+            Note that show_timezone is deprecated and cannot be set by the user.
             """
             course.show_timezone = show_timezone
             course.save()
@@ -268,38 +270,51 @@ class ViewsTestCase(TestCase):
             return get_text()
 
         request.user = self.user
+        # Clear out the modulestores, so we start with the test course in its default state.
+        clear_existing_modulestores()
         course = modulestore().get_course("edX/due_date/2013_fall")
 
-        # Default case show_timezone = True
-        text = set_show_timezone(True)
-        self.assertIn("due Sep 18, 2013 at 11:30 UTC", text)
-
-        # show_timezone = False
-        text = set_show_timezone(False)
-        self.assertNotIn("due Sep 18, 2013 at 11:30 UTC", text)
-        self.assertIn("due Sep 18, 2013 at 11:30", text)
+        time_with_utc = "due Sep 18, 2013 at 11:30 UTC"
+        time_without_utc = "due Sep 18, 2013 at 11:30"
+
+        # The test course being used has show_timezone = False in the policy file
+        # (and no due_date_display_format set). This is to test our backwards compatibility--
+        # in course_module's init method, the date_display_format will be set accordingly to
+        # remove the timezone.
+        text = get_text()
+        self.assertIn(time_without_utc, text)
+        self.assertNotIn(time_with_utc, text)
+        # Test that show_timezone has been cleared (which means you get the default value of True).
+        self.assertTrue(course.show_timezone)
+
+        # Clear out the due date format and verify you get the default (with timezone).
+        delattr(course, 'due_date_display_format')
+        course.save()
+        text = get_text()
+        self.assertIn(time_with_utc, text)
+
+        # Same for setting the due date to None
+        text = set_due_date_format(None)
+        self.assertIn(time_with_utc, text)
 
         # plain text due date
         text = set_due_date_format("foobar")
-        self.assertNotIn("due Sep 18, 2013 at 11:30", text)
+        self.assertNotIn(time_with_utc, text)
         self.assertIn("due foobar", text)
 
         # due date with no time
-        text = set_due_date_format(u"%b %d %Y")
-        self.assertNotIn("due Sep 18, 2013 at 11:30", text)
-        self.assertIn("due Sep 18 2013", text)
+        text = set_due_date_format(u"%b %d %y")
+        self.assertNotIn(time_with_utc, text)
+        self.assertIn("due Sep 18 13", text)
 
         # hide due date completely
         text = set_due_date_format(u"")
         self.assertNotIn("due ", text)
 
-        # improperly formatted due_date_display_format falls through to default  with show_timezone arg
+        # improperly formatted due_date_display_format falls through to default
+        # (value of show_timezone does not matter-- setting to False to make that clear).
+        set_show_timezone(False)
         text = set_due_date_format(u"%%%")
         self.assertNotIn("%%%", text)
-        self.assertIn("due Sep 18, 2013 at 11:30", text)
-        self.assertNotIn("due Sep 18, 2013 at 11:30 UTC", text)
+        self.assertIn(time_with_utc, text)
 
-        set_show_timezone(True)
-        text = set_due_date_format(u"%%%")
-        self.assertNotIn("%%%", text)
-        self.assertIn("due Sep 18, 2013 at 11:30 UTC", text)

lms/djangoapps/courseware/views.py

@@ -98,7 +98,6 @@ def render_accordion(request, course, chapter, section, field_data_cache):
     context = dict([('toc', toc),
                     ('course_id', course.id),
                     ('csrf', csrf(request)['csrf_token']),
-                    ('show_timezone', course.show_timezone),
                     ('due_date_display_format', course.due_date_display_format)] + template_imports.items())
     return render_to_string('courseware/accordion.html', context)
 

lms/templates/courseware/accordion.html

@@ -29,7 +29,7 @@
                 if section.get('due') is None:
                     due_date = ''
                 else:
-                    formatted_string = get_time_display(section['due'], due_date_display_format, show_timezone)
+                    formatted_string = get_time_display(section['due'], due_date_display_format)
                     due_date = '' if len(formatted_string)==0 else _('due {date}'.format(date=formatted_string))
               %>
               <p class="subtitle">${section['format']} ${due_date}</p>

lms/templates/courseware/progress.html

@@ -70,7 +70,7 @@ ${progress_graph.body(grade_summary, course.grade_cutoffs, "grade-detail-graph",
 
                 %if section.get('due') is not None:
                   <%
-                      formatted_string = get_time_display(section['due'], course.due_date_display_format, course.show_timezone)
+                      formatted_string = get_time_display(section['due'], course.due_date_display_format)
                       due_date = '' if len(formatted_string)==0 else _('due {date}'.format(date=formatted_string))
                   %>
                   <em>