Fix send email query (#4281)

* Fix send email query

* Fix doc strings

api/api/management/commands/sendapimoveannouncement.py

@@ -6,7 +6,7 @@
 import django_redis
 from django_tqdm import BaseCommand
 
-from api.models.oauth import OAuth2Verification
+from api.models.oauth import OAuth2Registration, ThrottledApplication
 
 
 message = """
@@ -27,14 +27,12 @@
 
 
 class Command(BaseCommand):
-    help = "Resends verification emails for unverified Oauth applications."
+    help = "Send an email announcing the Openverse API moving to api.openverse.org."
     """
-    This command sends a corrected oauth verification email to users who have
-    not yet verified their Openverse oauth applications. A previous version sent
-    an email with an incorrectly formatted link.
+    This command sends an email announcing the API move to api.openverse.org.
 
     It stores a cache of successfully sent emails in Redis, so running it multiple
-    times (in case of failure) should not be an issue.
+    times (in case of failure) will not be an issue.
     """
 
     processed_key = "apimoveannouncement:processed"
@@ -57,15 +55,18 @@ def handle(self, *args, **options):
             email.decode("utf-8") for email in redis.smembers(self.processed_key)
         ]
 
-        # Join from verification because it has a reference to both the application and the email
         unsent_email_addresses = (
-            OAuth2Verification.objects.filter(
-                # Only send to verified email addresses to avoid bounce rate increase
-                associated_application__verified=True
-            )
-            .exclude(
+            OAuth2Registration.objects.exclude(
                 email__in=sent_emails,
             )
+            .filter(
+                # `name` is unique indexed on OAuth2Registration, so should be safe to query
+                name__in=(
+                    ThrottledApplication.objects.filter(verified=True).values_list(
+                        "name", flat=True
+                    )
+                )
+            )
             .distinct("email")
             .values_list("email", flat=True)
         )

api/test/factory/models/oauth2.py

@@ -33,6 +33,18 @@ class Meta:
     description = Faker("catch_phrase")
     email = Faker("email")
 
+    @factory.post_generation
+    def application(obj, create, extracted, **kwargs):
+        # Only create the application if creating, and either
+        # `application=True` or some `application__*` kwargs were passed
+        if not (create and (extracted or kwargs)):
+            return
+
+        return ThrottledApplicationFactory.create(
+            name=obj.name,
+            verified=kwargs.get("verified", False),
+        )
+
 
 class OAuth2VerificationFactory(DjangoModelFactory):
     class Meta:

api/test/unit/management/commands/test_sendapimoveannouncement.py

@@ -6,7 +6,7 @@
 import pytest
 
 from test.factory.models.oauth2 import (
-    OAuth2VerificationFactory,
+    OAuth2RegistrationFactory,
 )
 
 
@@ -53,10 +53,11 @@ def call_cmd(**options):
 
 
 def make_emails(count: int, *, verified: bool):
-    verifications = OAuth2VerificationFactory.create_batch(
-        count, associated_application__verified=verified
+    registrations = OAuth2RegistrationFactory.create_batch(
+        count,
+        application__verified=verified,
     )
-    return [v.email for v in verifications]
+    return [r.email for r in registrations]
 
 
 @pytest.mark.django_db
@@ -90,7 +91,7 @@ def test_should_not_send_to_unverified_emails(captured_emails):
 @pytest.mark.django_db
 def test_should_not_send_to_email_twice(captured_emails):
     emails = make_emails(10, verified=True)
-    OAuth2VerificationFactory.create(
+    OAuth2RegistrationFactory.create(
         email=emails[0],
     )