Add convenience functions for Entitlement Support Tool

Adds getter for ecommerce order dashboard url and for getting
the entitlement support details reasons.

Learner-3925

common/djangoapps/entitlements/models.py

@@ -464,3 +464,17 @@ class CourseEntitlementSupportDetail(TimeStampedModel):
             self.support_user,
             self.reason,
         )
+
+    @classmethod
+    def get_support_actions_list(cls):
+        """
+        Method for retrieving a serializable version of the entitlement support reasons
+
+        Returns
+            list: Containing the possible support actions
+        """
+        return [
+            action[0]  # get just the action code, not the human readable description.
+            for action
+            in cls.ENTITLEMENT_SUPPORT_ACTIONS
+        ]

lms/djangoapps/commerce/models.py

@@ -15,6 +15,7 @@ class CommerceConfiguration(ConfigurationModel):
     API_NAME = 'commerce'
     CACHE_KEY = 'commerce.api.data'
     DEFAULT_RECEIPT_PAGE_URL = '/checkout/receipt/?order_number='
+    DEFAULT_ORDER_DASHBOARD_URL = '/dashboard/orders/'
     MULTIPLE_ITEMS_BASKET_PAGE_URL = '/basket/add/'
 
     checkout_on_ecommerce_service = models.BooleanField(

lms/djangoapps/commerce/tests/test_utils.py

@@ -102,6 +102,13 @@ class EcommerceServiceTests(TestCase):
         expected_url = 'http://ecommerce_url/checkout/receipt/?order_number={}'.format(order_number)
         self.assertEqual(url, expected_url)
 
+    @override_settings(ECOMMERCE_PUBLIC_URL_ROOT='http://ecommerce_url')
+    def test_get_order_dashboard_url(self):
+        """Verify that the proper order dashboard url is returned."""
+        url = EcommerceService().get_order_dashboard_url()
+        expected_url = 'http://ecommerce_url/dashboard/orders/'
+        self.assertEqual(url, expected_url)
+
     @override_settings(ECOMMERCE_PUBLIC_URL_ROOT='http://ecommerce_url')
     @ddt.data(['TESTSKU'], ['TESTSKU1', 'TESTSKU2', 'TESTSKU3'])
     def test_get_checkout_page_url(self, skus):

lms/djangoapps/commerce/utils.py

@@ -55,6 +55,14 @@ class EcommerceService(object):
         """
         return urljoin(self.ecommerce_url_root, ecommerce_page_url)
 
+    def get_order_dashboard_url(self):
+        """ Return the URL to the ecommerce dashboard orders page.
+
+        Returns:
+            String: order dashboard url.
+        """
+        return self.get_absolute_ecommerce_url(CommerceConfiguration.DEFAULT_ORDER_DASHBOARD_URL)
+
     def get_receipt_page_url(self, order_number):
         """
         Gets the URL for the Order Receipt page hosted by the ecommerce service.