feat: sync latest ARR implementation

database/014_booking_current_source_batch.down.sql

@@ -0,0 +1,72 @@
+-- Manual rollback for migration 014.
+-- Refuses once real Booking Excel data exists because removing the pointer would aggregate full batches together.
+
+BEGIN;
+
+DO $$
+BEGIN
+    IF current_database() <> 'booking_test' THEN
+        RAISE EXCEPTION
+            'ARR Booking current-source rollback is allowed only in booking_test';
+    END IF;
+    IF to_regclass('booking.current_source_batch') IS NULL THEN
+        RAISE EXCEPTION
+            'ARR Booking current-source migration is not applied';
+    END IF;
+    IF EXISTS (
+        SELECT 1
+        FROM booking.source_batches
+        WHERE source_kind = 'booking_excel'
+    ) THEN
+        RAISE EXCEPTION
+            'refusing rollback: Booking Excel source history exists';
+    END IF;
+    IF (
+        SELECT count(*)
+        FROM booking.source_batches
+        WHERE batch_status = 'accepted'
+    ) > 1 THEN
+        RAISE EXCEPTION
+            'refusing rollback: multiple accepted Booking source batches exist';
+    END IF;
+END;
+$$;
+
+CREATE OR REPLACE VIEW booking.v_current_room_items AS
+SELECT
+    source.id AS source_row_id,
+    source.source_batch_id,
+    source.source_worksheet,
+    source.source_row_no,
+    source.group_code_raw,
+    source.group_code_key,
+    source.type_of_room_raw,
+    source.no_of_rooms AS source_no_of_rooms,
+    parsed.id AS parse_version_id,
+    parsed.version_no AS parse_version_no,
+    item.item_no,
+    item.room_type_raw,
+    item.room_type_code,
+    item.quantity,
+    item.unit_price,
+    item.currency_code,
+    item.price_token_raw,
+    item.source_fragment
+FROM booking.current_row_parses AS current_parse
+JOIN booking.parse_versions AS parsed
+  ON parsed.id = current_parse.parse_version_id
+JOIN booking.source_rows AS source
+  ON source.id = current_parse.source_row_id
+JOIN booking.source_batches AS batch
+  ON batch.id = source.source_batch_id
+JOIN booking.room_items AS item
+  ON item.parse_version_id = parsed.id
+WHERE batch.batch_status = 'accepted'
+  AND parsed.parse_status = 'accepted';
+
+DROP TRIGGER current_source_batch_acceptance_guard
+    ON booking.current_source_batch;
+DROP FUNCTION booking.validate_current_source_batch();
+DROP TABLE booking.current_source_batch;
+
+COMMIT;