def edit(cls, member_id, product_id, count, selected):
models = cls.query.filter_by(member_id=member_id, soft=True).all()
ids = [item.product_id for item in models]
if len(models) >= 10 and product_id not in ids:
raise ParameterException(msg='购物车最多放10种商品')
Product.check_stock(product_id, count, throw=True)
model = cls.query.filter_by(product_id=product_id, member_id=member_id, soft=True).first()
if model:
model.update(count=count, selected=selected, commit=True)
return True
cls.create(member_id=member_id, product_id=product_id, count=count, selected=selected, commit=True)
return True
def place_order():
uid = g.user.uid
form = OrderForm().validate_for_api()
products = form.products.data
# 订单商品参数字段校验
products = OrderForm.check_products(products)
# 库存量检测
order_info = Product.check_stock(products)
if order_info['pass']:
# 生成订单，写入数据库
order_info = Order.generator_order(uid, order_info)
res = OrderProduct.mark_order(order_info, products)
return jsonify(res)
else:
return jsonify(order_info)
def check_stock():
form = ProductIdAndCount().validate_for_api()
has_stock = Product.check_stock(form.product_id.data, form.count.data)
return {'product_id': form.product_id.data, 'has_stock': has_stock}
