Fix inconsistent ui issues on discussion during blackout period

FOR-108

common/lib/xmodule/xmodule/discussion_module.py

@@ -52,6 +52,7 @@ class DiscussionModule(DiscussionFields, XModule):
     def get_html(self):
         context = {
             'discussion_id': self.discussion_id,
+            'course': self.get_course(),
         }
         if getattr(self.system, 'is_author_mode', False):
             template = 'discussion/_discussion_module_studio.html'
@@ -59,6 +60,12 @@ class DiscussionModule(DiscussionFields, XModule):
             template = 'discussion/_discussion_module.html'
         return self.system.render_template(template, context)
 
+    def get_course(self):
+        """
+        Return course by course id.
+        """
+        return self.descriptor.runtime.modulestore.get_course(self.course_id)
+
 
 class DiscussionDescriptor(DiscussionFields, MetadataOnlyEditingDescriptor, RawDescriptor):
 

common/lib/xmodule/xmodule/tests/test_xblock_wrappers.py

@@ -286,6 +286,10 @@ class XBlockWrapperTestMixin(object):
         descriptor_cls, fields = cls_and_fields
         self.skip_if_invalid(descriptor_cls)
         descriptor = LeafModuleFactory(descriptor_cls=descriptor_cls, **fields)
+        mocked_course = Mock()
+        modulestore = Mock()
+        modulestore.get_course.return_value = mocked_course
+        descriptor.runtime.modulestore = modulestore
         self.check_property(descriptor)
 
     # Test that when an xmodule is generated from descriptor_cls

common/test/acceptance/pages/lms/discussion.py

@@ -83,6 +83,10 @@ class DiscussionThreadPage(PageObject, DiscussionPageMixin):
         """Returns true if the response editor is present, false otherwise"""
         return self._is_element_visible(".response_{} .edit-post-body".format(response_id))
 
+    def is_response_editable(self, response_id):
+        """Returns true if the edit response button is present, false otherwise"""
+        return self._is_element_visible(".response_{} .discussion-response .action-edit".format(response_id))
+
     def start_response_edit(self, response_id):
         """Click the edit button for the response, loading the editing view"""
         self._find_within(".response_{} .discussion-response .action-edit".format(response_id)).first.click()
@@ -251,6 +255,8 @@ class InlineDiscussionPage(PageObject):
     def get_num_displayed_threads(self):
         return len(self._find_within(".discussion-thread"))
 
+    def element_exists(self, selector):
+        return self.q(css=self._discussion_selector + " " + selector).present
 
 class InlineDiscussionThreadPage(DiscussionThreadPage):
     def __init__(self, browser, thread_id):

common/test/acceptance/tests/test_discussion.py

@@ -2,6 +2,8 @@
 Tests for discussion pages
 """
 
+import datetime
+from pytz import UTC
 from uuid import uuid4
 from nose.plugins.attrib import attr
 
@@ -286,7 +288,7 @@ class InlineDiscussionTest(UniqueCourseTest, DiscussionResponsePaginationTestMix
     def setUp(self):
         super(InlineDiscussionTest, self).setUp()
         self.discussion_id = "test_discussion_{}".format(uuid4().hex)
-        CourseFixture(**self.course_info).add_children(
+        self.course_fix = CourseFixture(**self.course_info).add_children(
             XBlockFixtureDesc("chapter", "Test Section").add_children(
                 XBlockFixtureDesc("sequential", "Test Subsection").add_children(
                     XBlockFixtureDesc("vertical", "Test Unit").add_children(
@@ -300,7 +302,7 @@ class InlineDiscussionTest(UniqueCourseTest, DiscussionResponsePaginationTestMix
             )
         ).install()
 
-        AutoAuthPage(self.browser, course_id=self.course_id).visit()
+        self.user_id = AutoAuthPage(self.browser, course_id=self.course_id).visit().get_user_id()
 
         self.courseware_page = CoursewarePage(self.browser, self.course_id)
         self.courseware_page.visit()
@@ -334,6 +336,38 @@ class InlineDiscussionTest(UniqueCourseTest, DiscussionResponsePaginationTestMix
     def test_anonymous_to_peers_threads_as_peer(self):
         self.check_anonymous_to_peers(False)
 
+    def test_discussion_blackout_period(self):
+        now = datetime.datetime.now(UTC)
+        self.course_fix.add_advanced_settings(
+            {
+                u"discussion_blackouts": {
+                    "value": [
+                        [
+                            (now - datetime.timedelta(days=14)).isoformat(),
+                            (now + datetime.timedelta(days=2)).isoformat()
+                        ]
+                    ]
+                }
+            }
+        )
+        self.course_fix._add_advanced_settings()
+        self.browser.refresh()
+        thread = Thread(id=uuid4().hex, commentable_id=self.discussion_id)
+        thread_fixture = SingleThreadViewFixture(thread)
+        thread_fixture.addResponse(
+            Response(id="response1"),
+            [Comment(id="comment1", user_id="other"), Comment(id="comment2", user_id=self.user_id)])
+        thread_fixture.push()
+        self.setup_thread_page(thread.get("id"))
+        self.assertFalse(self.discussion_page.element_exists(".new-post-btn"))
+        self.assertFalse(self.thread_page.has_add_response_button())
+        self.assertFalse(self.thread_page.is_response_editable("response1"))
+        self.assertFalse(self.thread_page.is_add_comment_visible("response1"))
+        self.assertFalse(self.thread_page.is_comment_editable("comment1"))
+        self.assertFalse(self.thread_page.is_comment_editable("comment2"))
+        self.assertFalse(self.thread_page.is_comment_deletable("comment1"))
+        self.assertFalse(self.thread_page.is_comment_deletable("comment2"))
+
 
 @attr('shard_1')
 class DiscussionUserProfileTest(UniqueCourseTest):

lms/templates/discussion/_discussion_module.html

 <%! from django.utils.translation import ugettext as _ %>
+<%! from django_comment_client.permissions import has_permission %>
 <%include file="_underscore_templates.html" />
 
 <div class="discussion-module" data-discussion-id="${discussion_id | h}">
     <a class="discussion-show control-button" href="javascript:void(0)" data-discussion-id="${discussion_id | h}" role="button"><span class="show-hide-discussion-icon"></span><span class="button-text">${_("Show Discussion")}</span></a>
-    <a href="#" class="new-post-btn" role="button"><span class="icon icon-edit new-post-icon"></span>${_("New Post")}</a>
+    % if has_permission(user, 'create_thread', course.id):
+        <a href="#" class="new-post-btn" role="button"><span class="icon icon-edit new-post-icon"></span>${_("New Post")}</a>
+    % endif
 </div>

lms/templates/discussion/mustache/_inline_thread.mustache

@@ -13,6 +13,7 @@
           </div>
           <ol class="responses"/>
           <div class="response-pagination"/>
+          {{#ability.can_reply}}
           <form class="local discussion-reply-new"  data-id="{{id}}">
               <h4>${_("Post a response:")}</h4>
               <ul class="discussion-errors"></ul>
@@ -21,6 +22,7 @@
                   <a class="discussion-submit-post control-button" href="#">${_("Submit")}</a>
               </div>
           </form>
+          {{/ability.can_reply}}
         </div>
     </div>