兼容接入订单租期字段

backend/migrations/000002_order_payment_stepwise.sql

@@ -41,6 +41,67 @@ SET price = CASE
 END
 WHERE price <= 0;
 
+SET @order_rented_at_exists := (
+  SELECT COUNT(*)
+  FROM information_schema.columns
+  WHERE table_schema = DATABASE()
+    AND table_name = 'rental_orders'
+    AND column_name = 'rented_at'
+);
+
+SET @add_order_rented_at_sql := IF(
+  @order_rented_at_exists = 0,
+  'ALTER TABLE rental_orders ADD COLUMN rented_at DATETIME NULL AFTER renter_id',
+  'SELECT 1'
+);
+PREPARE add_order_rented_at_stmt FROM @add_order_rented_at_sql;
+EXECUTE add_order_rented_at_stmt;
+DEALLOCATE PREPARE add_order_rented_at_stmt;
+
+SET @order_estimated_duration_exists := (
+  SELECT COUNT(*)
+  FROM information_schema.columns
+  WHERE table_schema = DATABASE()
+    AND table_name = 'rental_orders'
+    AND column_name = 'estimated_duration_hours'
+);
+
+SET @add_order_estimated_duration_sql := IF(
+  @order_estimated_duration_exists = 0,
+  'ALTER TABLE rental_orders ADD COLUMN estimated_duration_hours INT NOT NULL DEFAULT 24 AFTER rented_at',
+  'SELECT 1'
+);
+PREPARE add_order_estimated_duration_stmt FROM @add_order_estimated_duration_sql;
+EXECUTE add_order_estimated_duration_stmt;
+DEALLOCATE PREPARE add_order_estimated_duration_stmt;
+
+UPDATE rental_orders
+SET
+  rented_at = COALESCE(rented_at, rent_start_at),
+  estimated_duration_hours = CASE
+    WHEN estimated_duration_hours > 0 THEN estimated_duration_hours
+    WHEN rent_hours > 0 THEN rent_hours
+    ELSE 24
+  END
+WHERE rented_at IS NULL OR estimated_duration_hours <= 0;
+
+SET @order_rented_at_index_exists := (
+  SELECT COUNT(*)
+  FROM information_schema.statistics
+  WHERE table_schema = DATABASE()
+    AND table_name = 'rental_orders'
+    AND index_name = 'idx_rental_orders_rented_at'
+);
+
+SET @add_order_rented_at_index_sql := IF(
+  @order_rented_at_index_exists = 0,
+  'ALTER TABLE rental_orders ADD KEY idx_rental_orders_rented_at (status, rented_at)',
+  'SELECT 1'
+);
+PREPARE add_order_rented_at_index_stmt FROM @add_order_rented_at_index_sql;
+EXECUTE add_order_rented_at_index_stmt;
+DEALLOCATE PREPARE add_order_rented_at_index_stmt;
+
 INSERT INTO system_configs (`key`, `value`, description)
 VALUES ('order.pending_payment_timeout_minutes', '15', '订单待支付超时取消分钟数')
 ON DUPLICATE KEY UPDATE `key` = VALUES(`key`);