def create_an_order(self,customer_id,product_id,create_time): is_created = False create_time = datetime.datetime.now().strftime("%Y-%m-%d_%H:%M:%S") with open('./data/user.txt','r') as f1: all_users = [eval(each.strip()) for each in f1.readlines()] all_ids = [item['user_id'] for item in all_users] with open('./data/produts.txt','r') as f2: all_pros = [eval(each.strip()) for each in f2.readlines()] all_pro_ids = [item['pro_id'] for item in all_pros] if customer_id in all_ids and product_id in all_pro_ids: order_id = self.generate_unique_order_id() orders = Order(order_id, customer_id, product_id,create_time) is_created = True with open('./data/orders.txt', 'a') as fw: fw.write(str(orders) + '\n') return is_created
时间: 2024-02-24 18:00:33 浏览: 148
undefined reference to ‘pthread_create’的解决方法
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这段代码实现了创建订单的功能,其中 `customer_id` 表示客户ID, `product_id` 表示商品ID, `create_time` 表示订单创建时间,函数返回值 `is_created` 表示订单是否创建成功。
具体实现步骤如下:
1. 将当前时间格式化为字符串形式。
```python
create_time = datetime.datetime.now().strftime("%Y-%m-%d_%H:%M:%S")
```
2. 读取用户信息和商品信息文件,将其转换为字典形式。
```python
with open('./data/user.txt', 'r') as f1:
all_users = [eval(each.strip()) for each in f1.readlines()]
with open('./data/produts.txt', 'r') as f2:
all_pros = [eval(each.strip()) for each in f2.readlines()]
```
3. 获取所有用户和商品的ID列表。
```python
all_ids = [item['user_id'] for item in all_users]
all_pro_ids = [item['pro_id'] for item in all_pros]
```
4. 判断 `customer_id` 和 `product_id` 是否存在于用户ID列表和商品ID列表中,如果存在则创建订单。
```python
if customer_id in all_ids and product_id in all_pro_ids:
order_id = self.generate_unique_order_id()
orders = Order(order_id, customer_id, product_id, create_time)
is_created = True
with open('./data/orders.txt', 'a') as fw:
fw.write(str(orders) + '\n')
```
5. 返回订单创建结果。
```python
return is_created
```
需要注意的是,这段代码中使用了 `eval()` 函数将文件中的字符串转换为字典,这种操作可能存在安全隐患,建议使用更加安全的方式进行文件读取和解析。另外, `generate_unique_order_id()` 函数没有给出具体实现,需要根据实际情况进行编写。
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