add 'provider_description' field for CreditProvider model

ECOM-1842

openedx/core/djangoapps/credit/api/provider.py

@@ -65,6 +65,7 @@ def get_credit_provider_info(provider_id):
             "display_name": "Hogwarts School of Witchcraft and Wizardry",
             "provider_url": "https://credit.example.com/",
             "provider_status_url": "https://credit.example.com/status/",
+            "provider_description: "A new model for the Witchcraft and Wizardry School System.",
             "enable_integration": False,
             "fulfillment_instructions": "
                 <p>In order to fulfill credit, Hogwarts School of Witchcraft and Wizardry requires learners to:</p>
@@ -83,6 +84,7 @@ def get_credit_provider_info(provider_id):
             "display_name": credit_provider.display_name,
             "provider_url": credit_provider.provider_url,
             "provider_status_url": credit_provider.provider_status_url,
+            "provider_description": credit_provider.provider_description,
             "enable_integration": credit_provider.enable_integration,
             "fulfillment_instructions": credit_provider.fulfillment_instructions
         }

openedx/core/djangoapps/credit/models.py

@@ -94,6 +94,13 @@ class CreditProvider(TimeStampedModel):
         )
     )
 
+    provider_description = models.TextField(
+        default="",
+        help_text=ugettext_lazy(
+            "Description for the credit provider displayed to users."
+        )
+    )
+
     fulfillment_instructions = models.TextField(
         null=True,
         blank=True,

openedx/core/djangoapps/credit/tests/test_api.py

@@ -48,6 +48,7 @@ class CreditApiTestBase(TestCase):
     PROVIDER_NAME = "Hogwarts School of Witchcraft and Wizardry"
     PROVIDER_URL = "https://credit.example.com/request"
     PROVIDER_STATUS_URL = "https://credit.example.com/status"
+    PROVIDER_DESCRIPTION = "A new model for the Witchcraft and Wizardry School System."
     ENABLE_INTEGRATION = True
     FULFILLMENT_INSTRUCTIONS = "Sample fulfillment instruction for credit completion."
 
@@ -64,6 +65,7 @@ class CreditApiTestBase(TestCase):
             display_name=self.PROVIDER_NAME,
             provider_url=self.PROVIDER_URL,
             provider_status_url=self.PROVIDER_STATUS_URL,
+            provider_description=self.PROVIDER_DESCRIPTION,
             enable_integration=self.ENABLE_INTEGRATION,
             fulfillment_instructions=self.FULFILLMENT_INSTRUCTIONS
         )
@@ -459,6 +461,7 @@ class CreditProviderIntegrationApiTests(CreditApiTestBase):
             "display_name": self.PROVIDER_NAME,
             "provider_url": self.PROVIDER_URL,
             "provider_status_url": self.PROVIDER_STATUS_URL,
+            "provider_description": self.PROVIDER_DESCRIPTION,
             "enable_integration": self.ENABLE_INTEGRATION,
             "fulfillment_instructions": self.FULFILLMENT_INSTRUCTIONS
         }