成功卖出

数量-1 ，数量为零时，已售空

models/models.py

@@ -38,6 +38,8 @@ class Hatch(Base):
     name = Column(String(100, 'utf8mb4_unicode_ci'), nullable=False, comment='商品名称')
     title = Column(String(200, 'utf8mb4_unicode_ci'), nullable=False, comment='商品标题')
     brand_id = Column(INTEGER(10), nullable=False, comment='品牌ID')
+    left_count = Column(INTEGER(10), nullable=False, comment='余额')
+    total_count = Column(INTEGER(10), nullable=False, comment='总数')
     brand_name = Column(String(100, 'utf8mb4_unicode_ci'), nullable=False, comment='商品名称')
     cate_id = Column(INTEGER(10), nullable=False, comment='分类ID')
     cate_name = Column(String(200, 'utf8mb4_unicode_ci'), nullable=False, comment='商品标题')

myapps/sukang24h/api/hatch_portal.py

@@ -103,13 +103,24 @@ def run_hatch_open():
     machine_no = json_data['machine_no']
     hatch_no = json_data['hatch_no']
     user_id = g.user.id
+
     rent_detail = RentDetail.query.filter(RentDetail.user_id == user_id, RentDetail.machine_no == machine_no,
                                           RentDetail.hatch_no == hatch_no,
                                           RentDetail.status != -1,
                                           RentDetail.is_take == 0).order_by(RentDetail.id.desc()).first()
     if rent_detail:
+        # 改变rentDatail中的is_take
         rent_detail.is_take = 1
         db.session.add(rent_detail)
+        # 查询到柜子中的物品 数量减一
+        left_res = Hatch.query.filter(Hatch.hatch_no == hatch_no,
+                                      Hatch.machine_no == machine_no).first()
+        left_res.left_count = left_res.left_count - 1
+        # 当数量等于1时，将柜子物品状态改为已售空
+        if left_res.left_count == 0:
+            left_res.status = 2
+        # 执行语句
+        db.session.add(left_res)
         db.session.commit()
 
     return BaseResponse()