Do not add the incident's tactical email as a member of the case stor…

…age if it doesn't exist (#3705)

src/dispatch/case/flows.py

@@ -21,10 +21,10 @@
 from dispatch.incident.models import IncidentCreate
 from dispatch.individual.models import IndividualContactRead
 from dispatch.models import OrganizationSlug, PrimaryKey
-from dispatch.participant import service as participant_service
 from dispatch.participant import flows as participant_flows
-from dispatch.participant_role import flows as role_flow
+from dispatch.participant import service as participant_service
 from dispatch.participant.models import ParticipantUpdate
+from dispatch.participant_role import flows as role_flow
 from dispatch.participant_role.models import ParticipantRoleType
 from dispatch.plugin import service as plugin_service
 from dispatch.storage import flows as storage_flows
@@ -593,22 +593,23 @@ def case_to_incident_escalate_flow(
         case_id=case.id,
     )
 
-    # we add the incident's tactical group to the case's storage folder
-    # to allow incident participants to access the case's artifacts in the folder
-    storage_members = [incident.tactical_group.email]
-    storage_flows.update_storage(
-        subject=case,
-        storage_action=StorageAction.add_members,
-        storage_members=storage_members,
-        db_session=db_session,
-    )
+    if case.storage:
+        # we add the incident's tactical group to the case's storage folder
+        # to allow incident participants to access the case's artifacts in the folder
+        storage_members = [incident.tactical_group.email]
+        storage_flows.update_storage(
+            subject=case,
+            storage_action=StorageAction.add_members,
+            storage_members=storage_members,
+            db_session=db_session,
+        )
 
-    event_service.log_case_event(
-        db_session=db_session,
-        source="Dispatch Core App",
-        description=f"The members of the incident's tactical group {incident.tactical_group.email} have been given permission to access the case's storage folder",
-        case_id=case.id,
-    )
+        event_service.log_case_event(
+            db_session=db_session,
+            source="Dispatch Core App",
+            description=f"The members of the incident's tactical group {incident.tactical_group.email} have been given permission to access the case's storage folder",
+            case_id=case.id,
+        )
 
 
 @background_task