From 4142438372635623cc26ea2f808ab4d5832ce924 Mon Sep 17 00:00:00 2001
From: erm0l0v <erm0l0v@ya.ru>
Date: Tue, 5 May 2015 15:46:06 +0300
Subject: [PATCH] add CourseTalk widget

Move tests to one test class
---
 cms/envs/common.py                            |  1 +
 .../courseware/tests/test_course_info.py      |  4 +-
 lms/djangoapps/courseware/views.py            | 14 +++--
 lms/envs/common.py                            |  3 +
 .../sass/multicourse/_course_about.scss       |  5 ++
 lms/templates/courseware/course_about.html    | 12 +++-
 lms/templates/courseware/info.html            | 11 ++++
 .../core/djangoapps/coursetalk/__init__.py    |  0
 openedx/core/djangoapps/coursetalk/admin.py   |  8 +++
 openedx/core/djangoapps/coursetalk/helpers.py | 35 +++++++++++
 .../coursetalk/migrations/0001_initial.py     | 30 ++++++++++
 .../coursetalk/migrations/__init__.py         |  0
 openedx/core/djangoapps/coursetalk/models.py  | 39 +++++++++++++
 .../djangoapps/coursetalk/tests/__init__.py   |  0
 .../coursetalk/tests/test_helpers.py          | 58 +++++++++++++++++++
 15 files changed, 213 insertions(+), 7 deletions(-)
 create mode 100644 openedx/core/djangoapps/coursetalk/__init__.py
 create mode 100644 openedx/core/djangoapps/coursetalk/admin.py
 create mode 100644 openedx/core/djangoapps/coursetalk/helpers.py
 create mode 100644 openedx/core/djangoapps/coursetalk/migrations/0001_initial.py
 create mode 100644 openedx/core/djangoapps/coursetalk/migrations/__init__.py
 create mode 100644 openedx/core/djangoapps/coursetalk/models.py
 create mode 100644 openedx/core/djangoapps/coursetalk/tests/__init__.py
 create mode 100644 openedx/core/djangoapps/coursetalk/tests/test_helpers.py

diff --git a/cms/envs/common.py b/cms/envs/common.py
index 7a853681d8..9c2112ca75 100644
--- a/cms/envs/common.py
+++ b/cms/envs/common.py
@@ -788,6 +788,7 @@ INSTALLED_APPS = (
     'external_auth',
     'student',  # misleading name due to sharing with lms
     'openedx.core.djangoapps.course_groups',  # not used in cms (yet), but tests run
+    'openedx.core.djangoapps.coursetalk',  # not used in cms (yet), but tests run
     'xblock_config',
 
     # Tracking
diff --git a/lms/djangoapps/courseware/tests/test_course_info.py b/lms/djangoapps/courseware/tests/test_course_info.py
index 2040c30307..952e1bc21f 100644
--- a/lms/djangoapps/courseware/tests/test_course_info.py
+++ b/lms/djangoapps/courseware/tests/test_course_info.py
@@ -269,7 +269,7 @@ class SelfPacedCourseInfoTestCase(LoginEnrollmentTestCase, SharedModuleStoreTest
         self.assertEqual(resp.status_code, 200)
 
     def test_num_queries_instructor_paced(self):
-        self.fetch_course_info_with_queries(self.instructor_paced_course, 19, 4)
+        self.fetch_course_info_with_queries(self.instructor_paced_course, 20, 4)
 
     def test_num_queries_self_paced(self):
-        self.fetch_course_info_with_queries(self.self_paced_course, 19, 4)
+        self.fetch_course_info_with_queries(self.self_paced_course, 20, 4)
diff --git a/lms/djangoapps/courseware/views.py b/lms/djangoapps/courseware/views.py
index 15cb6b8f34..98635c1018 100644
--- a/lms/djangoapps/courseware/views.py
+++ b/lms/djangoapps/courseware/views.py
@@ -65,6 +65,8 @@ from courseware.user_state_client import DjangoXBlockUserStateClient
 from edxmako.shortcuts import render_to_response, render_to_string, marketing_link
 from instructor.enrollment import uses_shib
 from openedx.core.djangoapps.content.course_overviews.models import CourseOverview
+from openedx.core.djangoapps.coursetalk.helpers import inject_coursetalk_keys_into_context
+from openedx.core.djangoapps.user_api.preferences.api import get_user_preference
 from openedx.core.djangoapps.credit.api import (
     get_credit_requirement_status,
     is_user_eligible_for_credit,
@@ -97,8 +99,6 @@ from .entrance_exams import (
 from .module_render import toc_for_course, get_module_for_descriptor, get_module, get_module_by_usage_id
 
 from lang_pref import LANGUAGE_KEY
-from openedx.core.djangoapps.user_api.preferences.api import get_user_preference
-
 
 log = logging.getLogger("edx.courseware")
 
@@ -727,6 +727,9 @@ def course_info(request, course_id):
             # course is not yet visible to students.
             context['disable_student_access'] = True
 
+        if CourseEnrollment.is_enrolled(request.user, course.id):
+            inject_coursetalk_keys_into_context(context, course_key)
+
         return render_to_response('courseware/info.html', context)
 
 
@@ -935,7 +938,7 @@ def course_about(request, course_id):
         # Overview
         overview = CourseOverview.get_from_id(course.id)
 
-        return render_to_response('courseware/course_about.html', {
+        context = {
             'course': course,
             'staff_access': staff_access,
             'studio_url': studio_url,
@@ -961,7 +964,10 @@ def course_about(request, course_id):
             'cart_link': reverse('shoppingcart.views.show_cart'),
             'pre_requisite_courses': pre_requisite_courses,
             'course_image_urls': overview.image_urls,
-        })
+        }
+        inject_coursetalk_keys_into_context(context, course_key)
+
+        return render_to_response('courseware/course_about.html', context)
 
 
 @transaction.non_atomic_requests
diff --git a/lms/envs/common.py b/lms/envs/common.py
index 44c7671c18..de98686bce 100644
--- a/lms/envs/common.py
+++ b/lms/envs/common.py
@@ -1976,6 +1976,9 @@ INSTALLED_APPS = (
 
     # Static i18n support
     'statici18n',
+
+    # Review widgets
+    'openedx.core.djangoapps.coursetalk',
 )
 
 # Migrations which are not in the standard module "migrations"
diff --git a/lms/static/sass/multicourse/_course_about.scss b/lms/static/sass/multicourse/_course_about.scss
index c26c439b4d..73c8c470b9 100644
--- a/lms/static/sass/multicourse/_course_about.scss
+++ b/lms/static/sass/multicourse/_course_about.scss
@@ -424,6 +424,11 @@
       }
     }
 
+    >.coursetalk-read-reviews {
+      margin-top: -200px;
+      margin-bottom: 220px;
+    }
+
     header {
       margin-bottom: 30px;
       padding-bottom: 16px;
diff --git a/lms/templates/courseware/course_about.html b/lms/templates/courseware/course_about.html
index b733c8811c..466cbc3c2b 100644
--- a/lms/templates/courseware/course_about.html
+++ b/lms/templates/courseware/course_about.html
@@ -17,7 +17,10 @@ from openedx.core.lib.courses import course_image_url
 </%block>
 
 <%block name="js_extra">
-
+  ## CourseTalk widget js script
+  % if show_coursetalk_widget:
+      <script src="//d3q6qq2zt8nhwv.cloudfront.net/s/js/widgets/coursetalk-read-reviews.js"></script>
+  % endif
   <script type="text/javascript">
   (function() {
     $(".register").click(function(event) {
@@ -283,6 +286,12 @@ from openedx.core.lib.courses import course_image_url
         </ol>
       </section>
 
+      ## CourseTalk widget
+      % if show_coursetalk_widget:
+      <div class="coursetalk-read-reviews">
+          <div id="ct-custom-read-review-widget" data-provider="${platform_key}" data-course="${course_review_key}"></div>
+      </div>
+      % endif
 
       ## For now, ocw links are the only thing that goes in additional resources
       % if get_course_about_section(request, course, "ocw_links"):
@@ -298,6 +307,7 @@ from openedx.core.lib.courses import course_image_url
         </section>
       </section>
       %endif
+
     </section>
 
   </section>
diff --git a/lms/templates/courseware/info.html b/lms/templates/courseware/info.html
index 475da2c94f..849cc7b057 100644
--- a/lms/templates/courseware/info.html
+++ b/lms/templates/courseware/info.html
@@ -45,6 +45,10 @@ from openedx.core.djangolib.markup import Text, HTML
 </%static:require_module>
 
 <%block name="js_extra">
+  ## CourseTalk widget js script
+  % if show_coursetalk_widget:
+      <script src="//d3q6qq2zt8nhwv.cloudfront.net/s/js/widgets/coursetalk-write-reviews.js"></script>
+  % endif
 <script type="text/javascript" src="${static.url('js/jquery.treeview.js')}"></script>
 <script type="text/javascript" charset="utf-8">
  $(document).ready(function(){
@@ -79,6 +83,13 @@ from openedx.core.djangolib.markup import Text, HTML
 
       <h1>${_("Course Updates and News")}</h1>
       ${HTML(get_course_info_section(request, masquerade_user, course, 'updates'))}
+
+      ## CourseTalk widget
+      % if show_coursetalk_widget:
+      <div class="coursetalk-write-reviews">
+        <div id="ct-custom-read-review-widget" data-provider="${platform_key}" data-course="${course_review_key}"></div>
+      </div>
+      % endif
     </section>
     <section aria-label="${_('Handout Navigation')}" class="handouts">
       % if SelfPacedConfiguration.current().enable_course_home_improvements:
diff --git a/openedx/core/djangoapps/coursetalk/__init__.py b/openedx/core/djangoapps/coursetalk/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/openedx/core/djangoapps/coursetalk/admin.py b/openedx/core/djangoapps/coursetalk/admin.py
new file mode 100644
index 0000000000..91d034416d
--- /dev/null
+++ b/openedx/core/djangoapps/coursetalk/admin.py
@@ -0,0 +1,8 @@
+"""Manage coursetalk configuration. """
+from django.contrib import admin
+
+from config_models.admin import ConfigurationModelAdmin
+from openedx.core.djangoapps.coursetalk.models import CourseTalkWidgetConfiguration
+
+
+admin.site.register(CourseTalkWidgetConfiguration, ConfigurationModelAdmin)
diff --git a/openedx/core/djangoapps/coursetalk/helpers.py b/openedx/core/djangoapps/coursetalk/helpers.py
new file mode 100644
index 0000000000..69824f6b1f
--- /dev/null
+++ b/openedx/core/djangoapps/coursetalk/helpers.py
@@ -0,0 +1,35 @@
+"""
+CourseTalk widget helpers
+"""
+from __future__ import unicode_literals
+
+from openedx.core.djangoapps.coursetalk import models
+
+
+def get_coursetalk_course_key(course_key):
+    """
+    Return course key for coursetalk widget
+
+    CourseTalk unique key for a course contains only organization and course code.
+    :param course_key: SlashSeparatedCourseKey instance
+    :type course_key: SlashSeparatedCourseKey
+    :return: CourseTalk course key
+    :rtype: str
+    """
+    return '{0.org}_{0.course}'.format(course_key)
+
+
+def inject_coursetalk_keys_into_context(context, course_key):
+    """
+    Set params to view context based on course_key and CourseTalkWidgetConfiguration
+
+    :param context: view context
+    :type context: dict
+    :param course_key: SlashSeparatedCourseKey instance
+    :type course_key: SlashSeparatedCourseKey
+    """
+    show_coursetalk_widget = models.CourseTalkWidgetConfiguration.is_enabled()
+    if show_coursetalk_widget:
+        context['show_coursetalk_widget'] = True
+        context['platform_key'] = models.CourseTalkWidgetConfiguration.get_platform_key()
+        context['course_review_key'] = get_coursetalk_course_key(course_key)
diff --git a/openedx/core/djangoapps/coursetalk/migrations/0001_initial.py b/openedx/core/djangoapps/coursetalk/migrations/0001_initial.py
new file mode 100644
index 0000000000..0c0985f26c
--- /dev/null
+++ b/openedx/core/djangoapps/coursetalk/migrations/0001_initial.py
@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+from django.conf import settings
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='CourseTalkWidgetConfiguration',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
+                ('change_date', models.DateTimeField(auto_now_add=True, verbose_name='Change date')),
+                ('enabled', models.BooleanField(default=False, verbose_name='Enabled')),
+                ('platform_key', models.CharField(help_text="This key needs to associate CourseTalk reviews with your platform. Better to use domain name Ex: for 'http://edx.org' platform_key will be 'edx'", max_length=50)),
+                ('changed_by', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, editable=False, to=settings.AUTH_USER_MODEL, null=True, verbose_name='Changed by')),
+            ],
+            options={
+                'ordering': ('-change_date',),
+                'abstract': False,
+            },
+        ),
+    ]
diff --git a/openedx/core/djangoapps/coursetalk/migrations/__init__.py b/openedx/core/djangoapps/coursetalk/migrations/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/openedx/core/djangoapps/coursetalk/models.py b/openedx/core/djangoapps/coursetalk/models.py
new file mode 100644
index 0000000000..781774d85d
--- /dev/null
+++ b/openedx/core/djangoapps/coursetalk/models.py
@@ -0,0 +1,39 @@
+"""
+Models for CourseTalk configurations
+"""
+from __future__ import unicode_literals
+
+from django.db import models
+from django.utils.translation import ugettext_lazy as _
+
+from config_models.models import ConfigurationModel
+
+
+class CourseTalkWidgetConfiguration(ConfigurationModel):
+    """
+    This model represents Enable Configuration for CourseTalk widget.
+    If the setting enabled, widget will will be available on course
+    info page and on course about page.
+    """
+    platform_key = models.fields.CharField(
+        max_length=50,
+        help_text=_(
+            "The platform key associates CourseTalk widgets with your platform. "
+            "Generally, it is the domain name for your platform. For example, "
+            "if your platform is http://edx.org, the platform key is \"edx\"."
+        )
+    )
+
+    @classmethod
+    def get_platform_key(cls):
+        """
+        Return platform_key for current active configuration.
+        If current configuration is not enabled - return empty string
+
+        :return: Platform key
+        :rtype: unicode
+        """
+        return cls.current().platform_key if cls.is_enabled() else ''
+
+    def __unicode__(self):
+        return 'CourseTalkWidgetConfiguration - {0}'.format(self.enabled)
diff --git a/openedx/core/djangoapps/coursetalk/tests/__init__.py b/openedx/core/djangoapps/coursetalk/tests/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/openedx/core/djangoapps/coursetalk/tests/test_helpers.py b/openedx/core/djangoapps/coursetalk/tests/test_helpers.py
new file mode 100644
index 0000000000..bc742e01d5
--- /dev/null
+++ b/openedx/core/djangoapps/coursetalk/tests/test_helpers.py
@@ -0,0 +1,58 @@
+""" CourseTalk widget helpers tests """
+from __future__ import unicode_literals
+
+from unittest import skipUnless
+
+from django import test
+from django.conf import settings
+
+from opaque_keys.edx.locations import SlashSeparatedCourseKey
+from openedx.core.djangoapps.coursetalk import helpers
+from openedx.core.djangoapps.coursetalk import models
+
+
+@skipUnless(settings.ROOT_URLCONF == 'lms.urls', 'Tests only valid in LMS')
+class CourseTalkKeyTests(test.TestCase):
+    """
+    CourseTalkKeyTests:
+    tests for function get_coursetalk_course_key
+    tests for function inject_coursetalk_keys_into_context
+    """
+
+    PLATFORM_KEY = 'some_platform'
+
+    def setUp(self):
+        super(CourseTalkKeyTests, self).setUp()
+        self.course_key = SlashSeparatedCourseKey('org', 'course', 'run')
+        self.context = {}
+
+    def db_set_up(self, enabled):
+        """
+        Setup database for this test:
+        Create CourseTalkWidgetConfiguration
+        """
+        config = models.CourseTalkWidgetConfiguration.current()
+        config.enabled = enabled
+        config.platform_key = self.PLATFORM_KEY
+        config.save()
+
+    def test_simple_key(self):
+        coursetalk_course_key = helpers.get_coursetalk_course_key(self.course_key)
+        self.assertEqual(coursetalk_course_key, 'org_course')
+
+    def test_inject_coursetalk_keys_when_widget_not_enabled(self):
+        self.db_set_up(False)
+        helpers.inject_coursetalk_keys_into_context(self.context, self.course_key)
+        self.assertNotIn('show_coursetalk_widget', self.context)
+        self.assertNotIn('platform_key', self.context)
+        self.assertNotIn('course_review_key', self.context)
+
+    def test_inject_coursetalk_keys_when_widget_enabled(self):
+        self.db_set_up(True)
+        helpers.inject_coursetalk_keys_into_context(self.context, self.course_key)
+        self.assertIn('show_coursetalk_widget', self.context)
+        self.assertIn('platform_key', self.context)
+        self.assertIn('course_review_key', self.context)
+        self.assertEqual(self.context.get('show_coursetalk_widget'), True)
+        self.assertEqual(self.context.get('platform_key'), self.PLATFORM_KEY)
+        self.assertEqual(self.context.get('course_review_key'), 'org_course')