功能：新增托盘状态机

shierfeng-fastapi-backend/module_business/domain/enums.py

@@ -0,0 +1,30 @@
+from enum import Enum
+
+
+class PalletFlowState(str, Enum):
+    UNSTOCKED = 'UNSTOCKED'
+    EMPTY_IN_WAREHOUSE = 'EMPTY_IN_WAREHOUSE'
+    FILLED_IN_WAREHOUSE = 'FILLED_IN_WAREHOUSE'
+    AT_SITE_UNUSED = 'AT_SITE_UNUSED'
+    AT_SITE_PARTIAL = 'AT_SITE_PARTIAL'
+    AT_SITE_EMPTY = 'AT_SITE_EMPTY'
+    RETURNING = 'RETURNING'
+
+
+class DocumentStatus(str, Enum):
+    DRAFT = 'DRAFT'
+    CONFIRMED = 'CONFIRMED'
+
+
+class ReturnStatus(str, Enum):
+    REQUESTED = 'REQUESTED'
+    CONFIRMED = 'CONFIRMED'
+
+
+class PalletEventType(str, Enum):
+    INBOUND_CONFIRMED = 'INBOUND_CONFIRMED'
+    FILLING_CONFIRMED = 'FILLING_CONFIRMED'
+    SHIPMENT_CONFIRMED = 'SHIPMENT_CONFIRMED'
+    USAGE_RECORDED = 'USAGE_RECORDED'
+    RETURN_REQUESTED = 'RETURN_REQUESTED'
+    RETURN_CONFIRMED = 'RETURN_CONFIRMED'