models: Refactor corporate/models.py into models package.

Fixes #34318.

Seperated models file into a package with component files.

zerver/actions/realm_settings.py

@@ -283,7 +283,7 @@ def get_realm_authentication_methods_for_page_params_api(
     # The rest of the function is only for the mechanism of restricting
     # certain backends based on the realm's plan type on Zulip Cloud.
 
-    from corporate.models import CustomerPlan
+    from corporate.models.plans import CustomerPlan
 
     for backend_name, backend_result in result_dict.items():
         available_for = AUTH_BACKEND_NAME_MAP[backend_name].available_for_cloud_plans

zerver/lib/events.py

@@ -136,7 +136,7 @@ def has_pending_sponsorship_request(
         user_has_billing_access = user_profile is not None and user_profile.has_billing_access
 
     if settings.CORPORATE_ENABLED and user_profile is not None and user_has_billing_access:
-        from corporate.models import get_customer_by_realm
+        from corporate.models.customers import get_customer_by_realm
 
         customer = get_customer_by_realm(user_profile.realm)
         if customer is not None:

zerver/lib/test_classes.py

@@ -39,7 +39,9 @@ from requests import PreparedRequest
 from two_factor.plugins.phonenumber.models import PhoneDevice
 from typing_extensions import override
 
-from corporate.models import Customer, CustomerPlan, LicenseLedger
+from corporate.models.customers import Customer
+from corporate.models.licenses import LicenseLedger
+from corporate.models.plans import CustomerPlan
 from zerver.actions.message_send import check_send_message, check_send_stream_message
 from zerver.actions.realm_settings import do_change_realm_permission_group_setting
 from zerver.actions.streams import bulk_add_subscriptions, bulk_remove_subscriptions

zerver/management/commands/delete_realm.py

@@ -37,7 +37,8 @@ realms used for testing; consider using deactivate_realm instead."""
             # Deleting a Realm object also deletes associating billing
             # metadata in an invariant-violating way, so we should
             # never use this tool for a realm with billing set up.
-            from corporate.models import CustomerPlan, get_customer_by_realm
+            from corporate.models.customers import get_customer_by_realm
+            from corporate.models.plans import CustomerPlan
 
             customer = get_customer_by_realm(realm)
             if customer and (

zerver/tests/test_docs.py

@@ -10,7 +10,8 @@ from django.conf import settings
 from django.test import override_settings
 from django.utils.timezone import now as timezone_now
 
-from corporate.models import Customer, CustomerPlan
+from corporate.models.customers import Customer
+from corporate.models.plans import CustomerPlan
 from zerver.context_processors import get_apps_page_url
 from zerver.lib.integrations import CATEGORIES, INTEGRATIONS, META_CATEGORY
 from zerver.lib.test_classes import ZulipTestCase

zerver/tests/test_home.py

@@ -10,7 +10,8 @@ from django.conf import settings
 from django.test import override_settings
 from django.utils.timezone import now as timezone_now
 
-from corporate.models import Customer, CustomerPlan
+from corporate.models.customers import Customer
+from corporate.models.plans import CustomerPlan
 from version import ZULIP_VERSION
 from zerver.actions.create_user import do_create_user
 from zerver.actions.realm_settings import do_change_realm_plan_type, do_set_realm_property

zerver/tests/test_push_notifications.py

@@ -29,7 +29,7 @@ from typing_extensions import override
 from analytics.lib.counts import CountStat, LoggingCountStat
 from analytics.models import InstallationCount, RealmCount, UserCount
 from corporate.lib.stripe import RemoteRealmBillingSession
-from corporate.models import CustomerPlan
+from corporate.models.plans import CustomerPlan
 from version import ZULIP_VERSION
 from zerver.actions.create_realm import do_create_realm
 from zerver.actions.message_delete import do_delete_messages