fix promo code constraint, cleanup admin_reservation_request

src/main/resources/alfio/db/PGSQL/V201_2.0.0.3__ADD_ROW_SECURITY.sql

@@ -102,6 +102,14 @@ create policy a_group_access_policy on a_group to public
     with check (alfio_check_row_access(organization_id_fk));
 --
 
+alter table promo_code drop constraint "unique_promo_code_for_org";
+alter table promo_code drop constraint "unique_promo_code_for_event";
+
+
+create unique index "unique_promo_code_for_org" on promo_code(promo_code, organization_id_fk) where event_id_fk is null;
+create unique index "unique_promo_code_for_event" on promo_code(promo_code, event_id_fk) where event_id_fk is not null;
+--
+
 update promo_code set organization_id_fk = (select org_id from event where event.id = event_id_fk) where organization_id_fk is null;
 alter table promo_code alter column organization_id_fk set not null;
 
@@ -197,6 +205,9 @@ create policy email_message_access_policy on email_message to public
 --
 
 -- admin_reservation_request
+
+delete from admin_reservation_request where (select count(*) from event where event.id = event_id) = 0;
+
 alter table admin_reservation_request add column organization_id_fk integer;
 alter table admin_reservation_request add foreign key(organization_id_fk) references organization(id);
 update admin_reservation_request set organization_id_fk = (select org_id from event where event.id = event_id);

src/main/resources/alfio/db/PGSQL/V202_2.0.0.12__FIX_PROMO_CODE_UNIQUE_INDEX.sql

@@ -0,0 +1,19 @@
+--
+-- This file is part of alf.io.
+--
+-- alf.io is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- (at your option) any later version.
+--
+-- alf.io is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with alf.io.  If not, see <http://www.gnu.org/licenses/>.
+--
+
+create unique index if not exists "unique_promo_code_for_org" on promo_code(promo_code, organization_id_fk) where event_id_fk is null;
+create unique index if not exists "unique_promo_code_for_event" on promo_code(promo_code, event_id_fk) where event_id_fk is not null;