ECOM-1683 removing regen-cert code.

lms/djangoapps/certificates/queue.py

@@ -262,16 +262,7 @@ class XQueueCertInterface(object):
             if forced_grade:
                 grade['grade'] = forced_grade
 
-            cert, created = GeneratedCertificate.objects.get_or_create(user=student, course_id=course_id)
-
-            if not created:
-                LOGGER.info(
-                    u"Regenerate certificate for user %s in course %s "
-                    u"with status %s, download_uuid %s, "
-                    u"and download_url %s",
-                    cert.user.id, unicode(cert.course_id),
-                    cert.status, cert.download_uuid, cert.download_url
-                )
+            cert, __ = GeneratedCertificate.objects.get_or_create(user=student, course_id=course_id)
 
             cert.mode = cert_mode
             cert.user = student

lms/djangoapps/courseware/tests/test_views.py

@@ -1042,8 +1042,9 @@ class GenerateUserCertTests(ModuleStoreTestCase):
     @patch('courseware.grades.grade', Mock(return_value={'grade': 'Pass', 'percent': 0.75}))
     @override_settings(CERT_QUEUE='certificates', SEGMENT_IO_LMS_KEY="foobar", FEATURES={'SEGMENT_IO_LMS': True})
     def test_user_with_passing_existing_downloadable_cert(self):
-        # If user has already downloadable certificate then he can again re-generate the
-        # the cert.
+        # If user has already downloadable certificate
+        # then json will return cert generating message with bad request code
+
         GeneratedCertificateFactory.create(
             user=self.student,
             course_id=self.course.id,
@@ -1051,30 +1052,9 @@ class GenerateUserCertTests(ModuleStoreTestCase):
             mode='verified'
         )
 
-        analytics_patcher = patch('courseware.views.analytics')
-        mock_tracker = analytics_patcher.start()
-        self.addCleanup(analytics_patcher.stop)
-
-        with patch('capa.xqueue_interface.XQueueInterface.send_to_queue') as mock_send_to_queue:
-            mock_send_to_queue.return_value = (0, "Successfully queued")
-            resp = self.client.post(self.url)
-            self.assertEqual(resp.status_code, 200)
-
-            #Verify Google Analytics event fired after generating certificate
-            mock_tracker.track.assert_called_once_with(  # pylint: disable=no-member
-                self.student.id,  # pylint: disable=no-member
-                'edx.bi.user.certificate.generate',
-                {
-                    'category': 'certificates',
-                    'label': unicode(self.course.id)
-                },
-
-                context={
-                    'Google Analytics':
-                    {'clientId': None}
-                }
-            )
-            mock_tracker.reset_mock()
+        resp = self.client.post(self.url)
+        self.assertEqual(resp.status_code, HttpResponseBadRequest.status_code)
+        self.assertIn("Certificate has already been created.", resp.content)
 
     def test_user_with_non_existing_course(self):
         # If try to access a course with valid key pattern then it will return

lms/djangoapps/courseware/views.py

@@ -1349,7 +1349,9 @@ def generate_user_cert(request, course_id):
 
     certificate_status = certs_api.certificate_downloadable_status(student, course.id)
 
-    if certificate_status["is_generating"]:
+    if certificate_status["is_downloadable"]:
+        return HttpResponseBadRequest(_("Certificate has already been created."))
+    elif certificate_status["is_generating"]:
         return HttpResponseBadRequest(_("Certificate is being created."))
     else:
         # If the certificate is not already in-process or completed,

lms/templates/courseware/progress.html

@@ -51,53 +51,50 @@ from django.utils.http import urlquote_plus
         <div class="wrapper-msg wrapper-auto-cert">
             <div id="errors-info" class="errors-info"></div>
 
-            <div class="auto-cert-message" id="course-success">
-                <div class="has-actions">
                 %if passed:
-
-                    % if is_downloadable and download_url:
-
-                    <% post_url = reverse('generate_user_cert', args=[unicode(course.id)]) %>
-                    <div class="msg-content">
-                        <h2 class="title">${_("Your certificate is available")}</h2>
-                        %if show_cert_web_view:
-                        <p class="copy">${_("You can now view your certificate.")}</p>
-                        %else:
-                        <p class="copy">${_(
-                            "You can now download your certificate as a PDF. If you keep working and receive a higher grade,you can request an {link_start} updated certificate {link_end}.").format(
-                            link_start=u"<a class='generate_certs' href='#' data-endpoint={}>".format(post_url) ,link_end=u"</a>")}
-                        </p>
-                        %endif
-                    </div>
-                    <div class="msg-actions">
-                        %if show_cert_web_view:
-                        <a class="btn" href="${cert_web_view_url}" target="_blank" title="${_('View certificate in a new browser window or tab.')}">
-                            ${_("View Certificate")}
-                        </a>
+                  <div class="auto-cert-message" id="course-success">
+                    <div class="has-actions">
+                        % if is_downloadable and download_url:
+
+                        <div class="msg-content">
+                            <h2 class="title">${_("Your certificate is available")}</h2>
+                            %if show_cert_web_view:
+                            <p class="copy">${_("You can now view your certificate.")}</p>
+                            %else:
+                            <p class="copy">${_(
+                                "You can now download your certificate as a PDF. If you keep working and receive a higher grade, you can request an updated certificate.")}
+                            </p>
+                            %endif
+                        </div>
+                        <div class="msg-actions">
+                            %if show_cert_web_view:
+                            <a class="btn" href="${cert_web_view_url}" target="_blank" title="${_('View certificate in a new browser window or tab.')}">
+                                ${_("View Certificate")}
+                            </a>
+                            %else:
+                            <a class="btn" href="${download_url}" target="_blank" title="${_('PDF will open in a new browser window or tab.')}">
+                                ${_("Download Your Certificate")}
+                            </a>
+                            %endif
+                        </div>
+                        %elif is_generating:
+                        <div class="msg-content">
+                            <h2 class="title">${_("We're working on it...")}</h2>
+                            <p class="copy">${_("We're creating your certificate. You can keep working in your courses and a link to it will appear here and on your Dashboard when it is ready.")}</p>
+                        </div>
+                        <div class="msg-actions"></div>
                         %else:
-                        <a class="btn" href="${download_url}" target="_blank" title="${_('PDF will open in a new browser window or tab.')}">
-                            ${_("Download Your Certificate")}
-                        </a>
+                        <div class="msg-content">
+                            <h2 class="title">${_("Congratulations, you qualified for a certificate!")}</h2>
+                            <p class="copy">${_("You can keep working for a higher grade, or request your certificate now.")}</p>
+                        </div>
+                        <div class="msg-actions">
+                            <button class="btn generate_certs" data-endpoint="${reverse('generate_user_cert', args=[unicode(course.id)])}" id="btn_generate_cert">${_('Request Certificate')}</button>
+                        </div>
                         %endif
                     </div>
-                    %elif is_generating:
-                    <div class="msg-content">
-                        <h2 class="title">${_("We're working on it...")}</h2>
-                        <p class="copy">${_("We're creating your certificate. You can keep working in your courses and a link to it will appear here and on your Dashboard when it is ready.")}</p>
-                    </div>
-                    <div class="msg-actions"></div>
-                    %else:
-                    <div class="msg-content">
-                        <h2 class="title">${_("Congratulations, you qualified for a certificate!")}</h2>
-                        <p class="copy">${_("You can keep working for a higher grade, or request your certificate now.")}</p>
-                    </div>
-                    <div class="msg-actions">
-                        <button class="btn generate_certs" data-endpoint="${reverse('generate_user_cert', args=[unicode(course.id)])}" id="btn_generate_cert">${_('Request Certificate')}</button>
-                    </div>
-                    %endif
-                </div>
+                  </div>
                 %endif
-            </div>
         </div>
         %endif