Question

警告：前面已提问题。

我一直在阅读有关PATCH的实现，但是我在实际的SQL查询中找不到任何东西。

假设我在前端...

GET http://example.com/invoices/123

{
   invoiceHeader : {
     id: 123,
     key: "2019/00001",
     client: 42,
     dueDate: "2019-12-25"
   }, 
   invoiceItems : [
     { id: 2001, sku: "A12345", quantity: 10, price: 300 },
     { id: 2002, sku: "B54321", quantity: 6, price: 500 }, 
     { id: 2003, sku: "C11223", quantity: 20, price: 200 },
   ]
}

现在，用户做他的事情，并进行以下更改...

{
   invoiceHeader : {
     id: 123,
     key: "2019/00001",
     client: 42,
     dueDate: "2019-12-30"     // Changes the date
   }, 
   invoiceItems : [
     { id: 2001, sku: "A12345", quantity: 10, price: 150 },   // Changes the price
     // { id: 2002, sku: "B54321", quantity: 10, price: 500 },   // Deletes this one
     { id: 2003, sku: "C11223", quantity: 20, price: 200 },
     { id: 2004, sku: "D9999", quantity: 1, price: 7000 },  // Adds this item
   ]
}

数据应该放在这些表中...

invoice
+-----+------------+--------+------------+
| id  |    key     | client |   dueDate  |
+-----+------------+--------+------------+
| 123 | 2019/00001 |   42   | 2019-12-25 |
+-----+------------+--------+------------+

invoiceItems
+------+--------------+--------+----------+-------+
|  id  | fk_invoiceId |  sku   | quantity | price |
+------+--------------+--------+----------+-------+
| 2001 |          123 | A12345 |       10 |   300 |
| 2002 |          123 | B54321 |        6 |   500 |
| 2003 |          123 | C11223 |       20 |   200 |
+------+--------------+--------+----------+-------+

通过此API路线...

router
    .patch('/invoices/:id', function (req, res) {

        let connection = mysql.createConnection(db);

        connection.connect();

        let query = `
            UPDATE invoice SET dueDate = '2019-12-30' WHERE id = ?; -- 123

            UPDATE invoiceItems SET price = 150 WHERE id = ?; -- 2001

            DELETE FROM invoiceItems WHERE id = ?; -- 2002

            INSERT INTO 
            invoiceItems (fk_invoiceId, sku, quantity, price) 
            VALUES (123, "D9999", 1, 7000);
        `

        let invoiceId = req.params.id;

        connection.query(query, [invoiceId, updateProductId, deleteProductId], function (error, results, fields) {
            if (error) throw error;

            res.sendStatus(200);
        });

        connection.end();
    });

HTTP PATCH请求和SQL查询是什么样的？换句话说，我如何知道为了生成多个SQL语句而进行了哪些更改？
如何为他们发送所有必要的数据，即商品ID？现在，路线中只有发票ID。我是否需要发送带有所有ID的正文？
我应该在INSERT路由内执行DELETE和PATCH吗？我需要将其分为几条路线吗？
- PATCH http://example.com/invoices/123
- PATCH http://example.com/invoices/123/items/2001
- DELETE http://example.com/invoices/123/items/2002

对此的可能答案是我的研究中的JSON PATCH，但我不确定这是否是问题。

HTTP PATCH-如何实际将内容放入数据库？如何跟踪更改以生成SQL？

0 个答案: