Fix contact filtering and compact workspace alerts

tests/test_addresses_service.py

@@ -6,6 +6,7 @@ from datetime import timedelta
 from unittest.mock import patch
 
 from sqlalchemy import create_engine, inspect
+from sqlalchemy.dialects import postgresql
 from sqlalchemy.orm import sessionmaker
 
 from govoplan_core.core.change_sequence import ChangeSequenceEntry
@@ -142,6 +143,7 @@ from govoplan_addresses.backend.service import (
     suggest_duplicate_contacts,
     resolve_trusted_deployment_carddav_credential_ref,
     _carddav_client_for_source,
+    _filtered_contact_query,
 )
 
 
@@ -309,6 +311,27 @@ class AddressServiceTest(unittest.TestCase):
         self.session.commit()
         self.assertEqual([item.id for item in list_contacts(self.session, self.principal, address_book_id=book.id)], [contact.id])
 
+    def test_contact_query_is_postgresql_json_safe(self) -> None:
+        book = create_address_book(
+            self.session,
+            self.principal,
+            AddressBookCreateRequest(scope_type="user", name="PostgreSQL-safe"),
+        )
+        self.session.commit()
+
+        contact_query = _filtered_contact_query(
+            self.session,
+            self.principal,
+            address_book_id=book.id,
+            address_list_id=None,
+            query="example",
+            include_deleted=False,
+        )
+        compiled = str(contact_query.statement.compile(dialect=postgresql.dialect()))
+
+        self.assertNotIn("SELECT DISTINCT", compiled.upper())
+        self.assertIn("EXISTS", compiled.upper())
+
     def test_contact_and_relationship_routes_emit_value_free_audit_evidence(self) -> None:
         book = create_address_book(
             self.session,