python学习

common/libs/food/FoodService.py

@@ -0,0 +1,28 @@
+# -*- coding: utf-8 -*-
+from application import app,db
+from common.models.food.FoodStockChangeLog import FoodStockChangeLog
+from common.models.food.Food import Food
+from common.libs.Helper import getCurrentDate
+class FoodService():
+
+    @staticmethod
+    def setStockChangeLog( food_id = 0,quantity = 0,note = '' ):
+
+        if food_id < 1:
+            return False
+
+        food_info = Food.query.filter_by( id = food_id ).first()
+        if not food_info:
+            return False
+
+        model_stock_change = FoodStockChangeLog()
+        model_stock_change.food_id = food_id
+        model_stock_change.unit = quantity
+        model_stock_change.total_stock = food_info.stock
+        model_stock_change.note = note
+        model_stock_change.created_time = getCurrentDate()
+        db.session.add(model_stock_change)
+        db.session.commit()
+        return True
+
+