Set up basic enrollment infrastructure.

common/djangoapps/course_modes/tests/test_views.py

@@ -31,6 +31,7 @@ class CourseModeViewTest(ModuleStoreTestCase):
         self.user = UserFactory.create(username="Bob", email="bob@example.com", password="edx")
         self.client.login(username=self.user.username, password="edx")
 
+    @unittest.skipUnless(settings.ROOT_URLCONF == 'lms.urls', 'Test only valid in lms')
     @ddt.data(
         # is_active?, enrollment_mode, upgrade?, redirect?
         (True, 'verified', True, False),   # User has an active verified enrollment and is trying to upgrade

common/djangoapps/course_modes/views.py

@@ -26,10 +26,10 @@ class ChooseModeView(View):
 
     When a get request is used, shows the selection page.
 
-    When a post request is used, assumes that it is a form submission 
+    When a post request is used, assumes that it is a form submission
     from the selection page, parses the response, and then sends user
     to the next step in the flow.
-    
+
     """
 
     @method_decorator(login_required)
@@ -50,7 +50,7 @@ class ChooseModeView(View):
         """
         course_key = SlashSeparatedCourseKey.from_deprecated_string(course_id)
         enrollment_mode, is_active = CourseEnrollment.enrollment_mode_for_user(request.user, course_key)
-        
+
         upgrade = request.GET.get('upgrade', False)
         request.session['attempting_upgrade'] = upgrade
 

common/djangoapps/enrollment/data.py

@@ -73,7 +73,7 @@ def update_course_enrollment(student_id, course_id, mode=None, is_active=None):
     course_key = CourseKey.from_string(course_id)
     student = User.objects.get(username=student_id)
     if not CourseEnrollment.is_enrolled(student, course_key):
-        enrollment = CourseEnrollment.enroll(student, course_key)
+        enrollment = CourseEnrollment.enroll(student, course_key, check_access=True)
     else:
         enrollment = CourseEnrollment.objects.get(user=student, course_id=course_key)
 

common/djangoapps/enrollment/views.py

@@ -10,7 +10,7 @@ from rest_framework.permissions import IsAuthenticated
 from rest_framework.response import Response
 from rest_framework.throttling import UserRateThrottle
 from enrollment import api
-from student.models import NonExistentCourseError
+from student.models import NonExistentCourseError, CourseEnrollmentException
 
 
 class EnrollmentUserThrottle(UserRateThrottle):
@@ -74,3 +74,5 @@ def get_course_enrollment(request, course_id=None):
         return Response(status=status.HTTP_400_BAD_REQUEST)
     except api.EnrollmentNotFoundError:
         return Response(status=status.HTTP_400_BAD_REQUEST)
+    except CourseEnrollmentException:
+        return Response(status=status.HTTP_400_BAD_REQUEST)

lms/envs/common.py

@@ -1028,6 +1028,7 @@ instructor_dash_js = sorted(rooted_glob(PROJECT_ROOT / 'static', 'coffee/src/ins
 student_account_js = [
     'js/common_helpers/rwd_header_footer.js',
     'js/common_helpers/edx.utils.validate.js',
+    'js/student_account/enrollment_interface.js',
     'js/student_account/models/LoginModel.js',
     'js/student_account/models/RegisterModel.js',
     'js/student_account/models/PasswordResetModel.js',

lms/static/js/spec/student_account/enrollment_interface_spec.js

+define(['js/common_helpers/template_helpers', 'js/student_account/enrollment_interface'],
+    function(TemplateHelpers) {
+        describe("edx.student.account.EnrollmentInterface", function() {
+            'use strict';
+            it("find course modes using modeInArray ", function() {
+                var course_modes = [
+                    {
+                    },
+                    {
+                    }
+                ];
+            });
+        });
+    }
+);

lms/static/js/spec/student_account/login_spec.js

@@ -39,6 +39,10 @@ define(['js/common_helpers/template_helpers', 'js/student_account/views/LoginVie
             it("allows the user to navigate to the password assistance form", function() {
                 // TODO
             });
+
+            it("enrolls the student into the right location and forwards them properly", function() {
+                // TODO
+            });
         });
     }
 );

lms/static/js/student_account/enrollment_interface.js

+var edx = edx || {};
+
+(function($, _, gettext) {
+    'use strict';
+
+    edx.student = edx.student || {};
+    edx.student.account = edx.student.account || {};
+
+    edx.student.account.EnrollmentInterface = {
+        courseUrl: '/enrollment/v0/course/',
+        studentUrl: '/enrollment/v0/student',
+        trackSelectionUrl: '/course_modes/choose/',
+        headers: {
+            'X-CSRFToken': $.cookie('csrftoken')
+        },
+        
+        studentInformation: function(course_key) {
+            // retrieve student enrollment information
+        },
+
+        courseInformation: function(course_key) {
+            // retrieve course information from the enrollment API
+        },
+
+        modeInArray: function(mode_slug, course_modes) {
+            // finds whether or not a particular course mode slug exists
+            // in an array of course modes
+            var result = _.find(course_modes, function(mode){ return mode.slug === mode_slug; });
+            return result != undefined;
+        },
+
+        enroll: function(course_key, forward_url){
+            var me = this;
+            // attempt to enroll a student in a course
+            $.ajax({
+                url: this.courseUrl + course_key,
+                type: 'POST',
+                data: {},
+                headers: this.headers
+            }).done(function(data){
+                me.postEnrollmentHandler(course_key, data, forward_url);
+            }
+            ).fail(function(data, textStatus) {
+                me.enrollmentFailureHandler(course_key, data, forward_url);
+            });
+        },
+
+        enrollmentFailureHandler: function(course_key, data, forward_url) {
+            // handle failures to enroll via the API
+            if(data.status == 400) {
+                // This status code probably means we don't have permissions to register for this course.
+                // look at the contents of the response
+                var course = $.parseJSON(data.responseText);
+                // see if it's a professional ed course
+                if('course_modes' in course && this.modeInArray('professional', course.course_modes)) {
+                    // forward appropriately
+                    forward_url = this.trackSelectionUrl + course_key;
+                }
+            }
+            // TODO: if we have a paid registration mode, add item to the cart and send them along
+
+            // TODO: we should figure out how to handle errors here eventually
+            window.location.href = forward_url;
+        },
+
+        postEnrollmentHandler: function(course_key, data, forward_url) {
+            // Determine whether or not the course needs to be redirected to
+            // a particular page.
+            var course = data.course,
+                course_modes = course.course_modes;
+            
+            // send the user to the track selection page, because it will do the right thing
+            forward_url = this.trackSelectionUrl + course_key;
+
+            window.location.href = forward_url;
+        }
+    };
+})(jQuery, _, gettext);

lms/static/js/student_account/models/LoginModel.js

@@ -6,6 +6,7 @@ var edx = edx || {};
     edx.student = edx.student || {};
     edx.student.account = edx.student.account || {};
 
+
     edx.student.account.LoginModel = Backbone.Model.extend({
 
         defaults: {
@@ -32,17 +33,31 @@ var edx = edx || {};
                 headers: headers
             })
             .done(function() {
-                var query = window.location.search,
-                    url = '/dashboard';
+                var enrollment = edx.student.account.EnrollmentInterface,
+                    query = new URI(window.location.search),
+                    url = '/dashboard',
+                    query_map = query.search(true),
+                    next = '';
+                
+                // check for forwarding url
+                if("next" in query_map) {
+                    next = query_map['next'];
+                    if(!window.isExternal(next)){
+                        url = next;
+                    }
+                }
 
                 model.trigger('sync');
 
-                // If query string in url go back to that page
-                if ( query.length > 1 ) {
-                    url = query.substring( query.indexOf('=') + 1 );
+                // if we need to enroll in the course, mark as enrolled
+                if('enrollment_action' in query_map && query_map['enrollment_action'] === 'enroll'){
+                    enrollment.enroll(query_map['course_id'], url);
                 }
+                else {
+                    window.location.href = url;
+                }
+
 
-                window.location.href = url;
             })
             .fail( function( error ) {
                 model.trigger('error', error);

lms/static/js/student_account/models/RegisterModel.js

@@ -39,17 +39,29 @@ var edx = edx || {};
                 headers: headers
             })
             .done(function() {
-                var query = window.location.search,
-                    url = '/dashboard';
+                var enrollment = edx.student.account.EnrollmentInterface,
+                    query = new URI(window.location.search),
+                    url = '/dashboard',
+                    query_map = query.search(true),
+                    next = '';
+
+                // check for forwarding url
+                if("next" in query_map) {
+                    next = query_map['next'];
+                    if(!window.isExternal(next)){
+                        url = next;
+                    }
+                }
 
                 model.trigger('sync');
 
-                // If query string in url go back to that page
-                if ( query.length > 1 ) {
-                    url = query.substring( query.indexOf('=') + 1 );
+                // if we need to enroll in the course, mark as enrolled
+                if('enrollment_action' in query_map && query_map['enrollment_action'] === 'enroll'){
+                    enrollment.enroll(query_map['course_id'], url);
+                }
+                else {
+                    window.location.href = url;
                 }
-
-                window.location.href = url;
             })
             .fail( function( error ) {
                 model.trigger('error', error);

lms/templates/student_account/login_and_register.html

@@ -8,6 +8,7 @@
 <%block name="js_extra">
     <script type="text/javascript" src="${static.url('js/vendor/backbone-min.js')}"></script>
     <script type="text/javascript" src="${static.url('js/vendor/underscore.string.min.js')}"></script>
+    <script type="text/javascript" src="${static.url('js/vendor/URI.min.js')}"></script>
     <%static:js group='student_account'/>
 </%block>