修正git管理关系

inventory-backend/app/schemas/stock_schema.py

@@ -0,0 +1,14 @@
+from app.extensions import ma
+from app.models.stock import StockBuy
+from marshmallow import fields
+
+class StockBuySchema(ma.SQLAlchemyAutoSchema):
+    class Meta:
+        model = StockBuy
+        load_instance = True # 反序列化时自动创建模型实例
+        include_fk = True    # 包含外键 material_id
+
+    # 必须字段校验
+    material_id = fields.Integer(required=True)
+    qty_inbound = fields.Decimal(required=True, as_string=True)
+    price_unit = fields.Decimal(missing=0, as_string=True)