Fix contact filtering and compact workspace alerts

src/govoplan_addresses/backend/service.py

@@ -12,7 +12,7 @@ import unicodedata
 import urllib.parse
 from typing import Any
 
-from sqlalchemy import and_, false, func, or_
+from sqlalchemy import and_, exists, false, func, or_
 from sqlalchemy.orm import Session, selectinload
 
 from govoplan_core.auth import ApiPrincipal
@@ -3256,21 +3256,26 @@ def _filtered_contact_query(
         )
         if address_book_id and address_list.address_book_id != address_book_id:
             raise AddressBookError("Address list does not belong to the selected address book.")
-        contact_query = contact_query.join(
-            AddressListEntry,
-            AddressListEntry.contact_id == Contact.id,
-        ).filter(AddressListEntry.address_list_id == address_list_id)
+        contact_query = contact_query.filter(
+            exists().where(
+                AddressListEntry.contact_id == Contact.id,
+                AddressListEntry.address_list_id == address_list_id,
+            )
+        )
     normalized_query = _trim(query)
     if normalized_query:
         pattern = f"%{normalized_query.lower()}%"
-        contact_query = contact_query.outerjoin(ContactEmail).filter(
+        contact_query = contact_query.filter(
             or_(
                 func.lower(Contact.display_name).like(pattern),
                 func.lower(Contact.organization).like(pattern),
-                func.lower(ContactEmail.email).like(pattern),
+                exists().where(
+                    ContactEmail.contact_id == Contact.id,
+                    func.lower(ContactEmail.email).like(pattern),
+                ),
             )
         )
-    return contact_query.distinct()
+    return contact_query
 
 
 def get_visible_contact(session: Session, principal: ApiPrincipal, contact_id: str, *, include_deleted: bool = False) -> Contact: