Put shopping cart views behind flags

lms/djangoapps/shoppingcart/urls.py

 from django.conf.urls import patterns, include, url
+from django.conf import settings
 
 urlpatterns = patterns('shoppingcart.views',  # nopep8
-    url(r'^$','show_cart'),
-    url(r'^(?P<course_id>[^/]+/[^/]+/[^/]+)/$','test'),
-    url(r'^add/course/(?P<course_id>[^/]+/[^/]+/[^/]+)/$','add_course_to_cart'),
-    url(r'^register_verified_course/course/(?P<course_id>[^/]+/[^/]+/[^/]+)/$', 'register_for_verified_cert'),
-    url(r'^clear/$','clear_cart'),
-    url(r'^remove_item/$', 'remove_item'),
-    url(r'^postpay_callback/$', 'postpay_callback'), #Both the ~accept and ~reject callback pages are handled here
+    url(r'^postpay_callback/$', 'postpay_callback'),  # Both the ~accept and ~reject callback pages are handled here
     url(r'^receipt/(?P<ordernum>[0-9]*)/$', 'show_receipt'),
 )
+if settings.MITX_FEATURES['ENABLE_SHOPPING_CART']:
+    urlpatterns += patterns(
+        'shoppingcart.views',
+        url(r'^$', 'show_cart'),
+        url(r'^clear/$', 'clear_cart'),
+        url(r'^remove_item/$', 'remove_item'),
+    )
+
+if settings.DEBUG:
+    urlpatterns += patterns(
+        'shoppingcart.views',
+        url(r'^(?P<course_id>[^/]+/[^/]+/[^/]+)/$', 'test'),
+        url(r'^add/course/(?P<course_id>[^/]+/[^/]+/[^/]+)/$', 'add_course_to_cart'),
+        url(r'^register_verified_course/course/(?P<course_id>[^/]+/[^/]+/[^/]+)/$',
+            'register_for_verified_cert'),
+    )

lms/envs/common.py

@@ -154,6 +154,9 @@ MITX_FEATURES = {
     # Toggle to enable chat availability (configured on a per-course
     # basis in Studio)
     'ENABLE_CHAT': False,
+
+    # Toggle the availability of the shopping cart page
+    'ENABLE_SHOPPING_CART': False
 }
 
 # Used for A/B testing

lms/envs/dev.py

@@ -30,6 +30,7 @@ MITX_FEATURES['ENABLE_INSTRUCTOR_ANALYTICS'] = True
 MITX_FEATURES['ENABLE_SERVICE_STATUS'] = True
 MITX_FEATURES['ENABLE_HINTER_INSTRUCTOR_VIEW'] = True
 MITX_FEATURES['ENABLE_INSTRUCTOR_BETA_DASHBOARD'] = True
+MITX_FEATURES['ENABLE_SHOPPING_CART'] = True
 
 FEEDBACK_SUBMISSION_EMAIL = "dummy@example.com"