feat: settlement lineup

printing/models.py

@@ -182,6 +182,12 @@ class PlateOrder(ModelBase):
         verbose_name = '开版订单'
         verbose_name_plural = '开版订单'
         ordering = ['-created_at']
+        indexes = [
+            models.Index(
+                fields=['merchant', 'plate_date'],
+                name='idx_plateord_merch_pltdt',
+            ),
+        ]
         permissions = [
             ('can_invalidate_plateorder', '可以作废开版订单'),
             ('can_activate_plateorder', '可以恢复开版订单'),