Otto checkout flow

common/djangoapps/course_modes/views.py

@@ -3,28 +3,27 @@
 """
 
 import decimal
-from ipware.ip import get_ip
 
+from django.contrib.auth.decorators import login_required
 from django.core.urlresolvers import reverse
 from django.db import transaction
 from django.http import HttpResponse, HttpResponseBadRequest
 from django.shortcuts import redirect
-from django.views.generic.base import View
-from django.utils.translation import ugettext as _
-from django.contrib.auth.decorators import login_required
 from django.utils.decorators import method_decorator
+from django.utils.translation import ugettext as _
+from django.views.generic.base import View
+from ipware.ip import get_ip
+from opaque_keys.edx.keys import CourseKey
+from opaque_keys.edx.locations import SlashSeparatedCourseKey
+from xmodule.modulestore.django import modulestore
 
-from edxmako.shortcuts import render_to_response
-
+from lms.djangoapps.commerce.utils import EcommerceService
 from course_modes.models import CourseMode
 from courseware.access import has_access
+from edxmako.shortcuts import render_to_response
+from embargo import api as embargo_api
 from student.models import CourseEnrollment
-from opaque_keys.edx.locations import SlashSeparatedCourseKey
-from opaque_keys.edx.keys import CourseKey
 from util.db import outer_atomic
-from xmodule.modulestore.django import modulestore
-
-from embargo import api as embargo_api
 
 
 class ChooseModeView(View):
@@ -39,7 +38,14 @@ class ChooseModeView(View):
     """
 
     @method_decorator(transaction.non_atomic_requests)
-    def dispatch(self, *args, **kwargs):        # pylint: disable=missing-docstring
+    def dispatch(self, *args, **kwargs):
+        """Disable atomicity for the view.
+
+        Otherwise, we'd be unable to commit to the database until the
+        request had concluded; Django will refuse to commit when an
+        atomic() block is active, since that would break atomicity.
+
+        """
         return super(ChooseModeView, self).dispatch(*args, **kwargs)
 
     @method_decorator(login_required)
@@ -117,7 +123,10 @@ def get(self, request, course_id, error=None):
         )
 
         context = {
-            "course_modes_choose_url": reverse("course_modes_choose", kwargs={'course_id': course_key.to_deprecated_string()}),
+            "course_modes_choose_url": reverse(
+                "course_modes_choose",
+                kwargs={'course_id': course_key.to_deprecated_string()}
+            ),
             "modes": modes,
             "has_credit_upsell": has_credit_upsell,
             "course_name": course.display_name_with_default_escaped,
@@ -129,15 +138,22 @@ def get(self, request, course_id, error=None):
             "nav_hidden": True,
         }
         if "verified" in modes:
+            verified_mode = modes["verified"]
             context["suggested_prices"] = [
                 decimal.Decimal(x.strip())
-                for x in modes["verified"].suggested_prices.split(",")
+                for x in verified_mode.suggested_prices.split(",")
                 if x.strip()
             ]
-            context["currency"] = modes["verified"].currency.upper()
-            context["min_price"] = modes["verified"].min_price
-            context["verified_name"] = modes["verified"].name
-            context["verified_description"] = modes["verified"].description
+            context["currency"] = verified_mode.currency.upper()
+            context["min_price"] = verified_mode.min_price
+            context["verified_name"] = verified_mode.name
+            context["verified_description"] = verified_mode.description
+
+            if verified_mode.sku:
+                ecommerce_service = EcommerceService()
+                context["use_ecommerce_payment_flow"] = ecommerce_service.is_enabled()
+                context["ecommerce_payment_page"] = ecommerce_service.payment_page_url()
+                context["sku"] = verified_mode.sku
 
         return render_to_response("course_modes/choose.html", context)
 

common/djangoapps/student/helpers.py

@@ -207,7 +207,7 @@ def get_next_url_for_login_page(request):
     """
     Determine the URL to redirect to following login/registration/third_party_auth
 
-    The user is currently on a login or reigration page.
+    The user is currently on a login or registration page.
     If 'course_id' is set, or other POST_AUTH_PARAMS, we will need to send the user to the
     /account/finish_auth/ view following login, which will take care of auto-enrollment in
     the specified course.

common/djangoapps/student/views.py

@@ -39,7 +39,6 @@
 
 from ratelimitbackend.exceptions import RateLimitException
 
-
 from social.apps.django_app import utils as social_utils
 from social.backends import oauth as social_oauth
 from social.exceptions import AuthException, AuthAlreadyAssociated
@@ -55,6 +54,7 @@
     create_comments_service_user, PasswordHistory, UserSignupSource,
     DashboardConfiguration, LinkedInAddToProfileConfiguration, ManualEnrollmentAudit, ALLOWEDTOENROLL_TO_ENROLLED)
 from student.forms import AccountCreationForm, PasswordResetFormNoActive, get_registration_extension_form
+from lms.djangoapps.commerce.utils import EcommerceService  # pylint: disable=import-error
 from lms.djangoapps.verify_student.models import SoftwareSecurePhotoVerification  # pylint: disable=import-error
 from certificates.models import CertificateStatuses, certificate_status_for_student
 from certificates.api import (  # pylint: disable=import-error
@@ -502,6 +502,7 @@ def complete_course_mode_info(course_id, enrollment, modes=None):
     # if verified is an option.
     if CourseMode.VERIFIED in modes and enrollment.mode in CourseMode.UPSELL_TO_VERIFIED_MODES:
         mode_info['show_upsell'] = True
+        mode_info['verified_sku'] = modes['verified'].sku
         # if there is an expiration date, find out how long from now it is
         if modes['verified'].expiration_datetime:
             today = datetime.datetime.now(UTC).date()
@@ -737,6 +738,13 @@ def dashboard(request):
         'xseries_credentials': xseries_credentials,
     }
 
+    ecommerce_service = EcommerceService()
+    if ecommerce_service.is_enabled():
+        context.update({
+            'use_ecommerce_payment_flow': True,
+            'ecommerce_payment_page': ecommerce_service.payment_page_url(),
+        })
+
     return render_to_response('dashboard.html', context)
 
 

lms/djangoapps/commerce/admin.py

@@ -0,0 +1,8 @@
+""" Admin site bindings for commerce app. """
+
+from django.contrib import admin
+
+from commerce.models import CommerceConfiguration
+from config_models.admin import ConfigurationModelAdmin
+
+admin.site.register(CommerceConfiguration, ConfigurationModelAdmin)

lms/djangoapps/commerce/migrations/0002_commerceconfiguration.py

@@ -0,0 +1,32 @@
+# -*- 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),
+        ('commerce', '0001_data__add_ecommerce_service_user'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='CommerceConfiguration',
+            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')),
+                ('checkout_on_ecommerce_service', models.BooleanField(default=False, help_text='Use the checkout page hosted by the E-Commerce service.')),
+                ('single_course_checkout_page', models.CharField(default=b'/basket/single-item/', help_text='Path to single course checkout page hosted by the E-Commerce service.', max_length=255)),
+                ('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,
+            },
+        ),
+    ]

lms/djangoapps/commerce/models.py

@@ -1,3 +1,25 @@
 """
-This file is intentionally empty. Django 1.6 and below require a models.py file for all apps.
+Commerce-related models.
 """
+from django.db import models
+from django.utils.translation import ugettext_lazy as _
+
+from config_models.models import ConfigurationModel
+
+
+class CommerceConfiguration(ConfigurationModel):
+    """ Commerce configuration """
+
+    checkout_on_ecommerce_service = models.BooleanField(
+        default=False,
+        help_text=_('Use the checkout page hosted by the E-Commerce service.')
+    )
+
+    single_course_checkout_page = models.CharField(
+        max_length=255,
+        default='/basket/single-item/',
+        help_text=_('Path to single course checkout page hosted by the E-Commerce service.')
+    )
+
+    def __unicode__(self):
+        return "Commerce configuration"

lms/djangoapps/commerce/tests/test_utils.py

@@ -1,8 +1,10 @@
 """Tests of commerce utilities."""
 from django.test import TestCase
+from django.test.utils import override_settings
 from mock import patch
 
-from commerce.utils import audit_log
+from commerce.utils import audit_log, EcommerceService
+from commerce.models import CommerceConfiguration
 
 
 class AuditLogTests(TestCase):
@@ -16,3 +18,46 @@ def test_log_message(self, mock_log):
         # key-value pairs ordered alphabetically by key.
         message = 'foo: bar="baz", qux="quux"'
         self.assertTrue(mock_log.info.called_with(message))
+
+
+class EcommerceServiceTests(TestCase):
+    """Tests for the EcommerceService helper class."""
+    SKU = 'TESTSKU'
+
+    def setUp(self):
+        CommerceConfiguration.objects.create(
+            checkout_on_ecommerce_service=True,
+            single_course_checkout_page='/test_basket/'
+        )
+        super(EcommerceServiceTests, self).setUp()
+
+    def test_is_enabled(self):
+        """Verify that is_enabled() returns True when ecomm checkout is enabled. """
+        is_enabled = EcommerceService().is_enabled()
+        self.assertTrue(is_enabled)
+
+        config = CommerceConfiguration.current()
+        config.checkout_on_ecommerce_service = False
+        config.save()
+        is_not_enabled = EcommerceService().is_enabled()
+        self.assertFalse(is_not_enabled)
+
+    @patch('openedx.core.djangoapps.theming.helpers.is_request_in_themed_site')
+    def test_is_enabled_for_microsites(self, is_microsite):
+        """Verify that is_enabled() returns False if used for a microsite."""
+        is_microsite.return_value = True
+        is_not_enabled = EcommerceService().is_enabled()
+        self.assertFalse(is_not_enabled)
+
+    @override_settings(ECOMMERCE_PUBLIC_URL_ROOT='http://ecommerce_url')
+    def test_payment_page_url(self):
+        """Verify that the proper URL is returned."""
+        url = EcommerceService().payment_page_url()
+        self.assertEqual(url, 'http://ecommerce_url/test_basket/')
+
+    @override_settings(ECOMMERCE_PUBLIC_URL_ROOT='http://ecommerce_url')
+    def test_checkout_page_url(self):
+        """ Verify the checkout page URL is properly constructed and returned. """
+        url = EcommerceService().checkout_page_url(self.SKU)
+        expected_url = 'http://ecommerce_url/test_basket/?sku={}'.format(self.SKU)
+        self.assertEqual(url, expected_url)

lms/djangoapps/commerce/utils.py

@@ -1,6 +1,11 @@
 """Utilities to assist with commerce tasks."""
 import logging
+from urlparse import urljoin
 
+from django.conf import settings
+
+from commerce.models import CommerceConfiguration
+from openedx.core.djangoapps.theming import helpers
 
 log = logging.getLogger(__name__)
 
@@ -32,3 +37,29 @@ def audit_log(name, **kwargs):
     message = u'{name}: {payload}'.format(name=name, payload=payload)
 
     log.info(message)
+
+
+class EcommerceService(object):
+    """ Helper class for ecommerce service integration. """
+    def __init__(self):
+        self.config = CommerceConfiguration.current()
+
+    def is_enabled(self):
+        """ Check if the service is enabled and that the site is not a microsite. """
+        return self.config.checkout_on_ecommerce_service and not helpers.is_request_in_themed_site()
+
+    def payment_page_url(self):
+        """ Return the URL for the checkout page.
+
+        Example:
+            http://localhost:8002/basket/single_item/
+        """
+        return urljoin(settings.ECOMMERCE_PUBLIC_URL_ROOT, self.config.single_course_checkout_page)
+
+    def checkout_page_url(self, sku):
+        """ Construct the URL to the ecommerce checkout page and include a product.
+
+        Example:
+            http://localhost:8002/basket/single_item/?sku=5H3HG5
+        """
+        return "{}?sku={}".format(self.payment_page_url(), sku)