按类别格式化 rest Api 组字段答案

【问题标题】：format rest Api group field by category按类别格式化 rest Api 组字段
【发布时间】：2020-06-09 09:54:35
【问题描述】：

我是 API 新手，我使用 Codeigniter 从 MySql 数据库产品创建 API 字段：金额、数量、客户姓名、客户电话、客户地址结果看起来：

```[
    {
        "Id": "1",
        "Amount": "21542",
        "quantity": "52",
        "customerName": "John",
        "CustomerPhone": "254215",
        "CustomerAddress": "road tvz120",

    },```

但我希望它看起来像这样：

```[
    {
        "Id": "1",
        "Amount": "21542",
        "quantity": "52",
        "customerInfo":{
        "customerName": "John",
        "CustomerPhone": "254215",
        "CustomerAddress": "rue tvz120"},

    },```

我的意思是将与客户相关的 3 个字段与名称客户信息进行分组

我的php代码是

```public function index_get($id = 0)
    {
        if(!empty($id)){
            $data = $this->db->get_where("Products", ['Id' => $id])->row_array();
        }else{
            $data = $this->db->get("Products")->result();
        }

        $this->response($data, REST_Controller::HTTP_OK);
    }```

【问题讨论】：

标签： php mysql api rest codeigniter

【解决方案1】：

您的产品格式是基于数据库的，因此如果您想更改结果格式，您必须手动构建它。您需要在返回数据之前循环结果。

if(!empty($id)){
    $data = $this->db->get_where("Products", ['Id' => $id])->row_array();
}else{
    $data = $this->db->get("Products")->result();
    $newdata = array();

    foreach($data as $row)
    {
        $newdata[] = array(
            "Id" => $row->id,
            "Amount" => $row->amount,
            "quantity" => $row->quantity,
            "customerInfo" => array(
                "customerName" => $row->customerName,
                "CustomerPhone" => $row->CustomerPhone,
                "CustomerAddress" => $row->CustomerAddress,
            )
        );
    }
    $data = $newdata;
}
$this->response($data, REST_Controller::HTTP_OK);

【讨论】：

【解决方案2】：

您不能通过查询执行此操作，您必须遍历结果并将其更改为所需的格式，就像这样 -

if(!empty($id)){

    $result = $this->db->get_where("Products", ['Id' => $id])->result(); 
    // I'll advise to use result() here instead of row_array() so that you don't face any issue when there's only one row.

}else{

    $result = $this->db->get("Products")->result();

}

foreach($result as $res){

    $new_result[] = array(
        "Id"           => $res->Id,
        "Amount"       => $res->Amount,
        "quantity"     => $res->quantity,
        "customerInfo" => array(
                                "customerName"    => $res->customerName,
                                "CustomerPhone"   => $res->CustomerPhone,
                                "CustomerAddress" => $res->CustomerAddress
                                )
                    );
}
$this->response($new_result, REST_Controller::HTTP_OK); // send newly created array instead

看看这对你有没有帮助。

【讨论】：