php - 从数据库中删除不起作用

Question

我正在用 angular 和 php 构建一个项目。我的数据库中有一个"file"表，我可以发送文件并检索我需要的所有信息。我添加了一个删除按钮，但我不知道为什么它不起作用。我的控制台没有错误。有人可以看看我的代码吗？

用于删除的 php:

<?php

header('Content-Type: text/html; charset=utf-8');
$connect = mysqli_connect("localhost", "root", "", "hamatkin");

include_once 'file.php';

mysqli_query($connect, "SET character_set_client = utf8");
mysqli_query($connect, "SET character_set_connection = utf8");
mysqli_query($connect, "SET character_set_results = utf8");

// Check connection
if (mysqli_connect_errno()) {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
//$customer = new Customer();
$data = json_decode(file_get_contents("php://input"));
$x = $data->reffer_customer_id;

$reffer_customer_id = $data->reffer_customer_id;
$del = "DELETE FROM file WHERE reffer_customer_id = " . $reffer_customer_id;
//echo $del;
mysqli_query($connect, $del);
$newURL = "/hamatkin/#/allPriceOffers";

header('Location: '.$newURL);

?>

Controller :

$scope.delete = function(deletingId, $index) {

    $http.post('api/customers-tab/delete-priceOffer.php', { "reffer_customer_id" : deletingId })
        .success(function(data) {

            var arr = JSON.parse(JSON.stringify(data));
            $scope.files = arr;
            var arr2 = arr.split(",");
            arr2.splice($index, 1);
            $route.reload();
        });
    };

HTML 删除按钮:

<td><a ng-click="delete(x.reffer_customer_id, $index)" class="btn btn-primary btn-active">מחיקה</td>

Answer 1

首先你应该修复你的 HTML:

1. 我不知道你在 ng-click 上添加删除功能是什么意思属性，可能您想使用 on-click反而？如果我错了请纠正我
2. 您打开了<a>标签，但是 </a>不在

在 <td> 中更正了 HTML 按钮是:

<td><a on-click="delete(x.reffer_customer_id, $index); return false;" class="btn btn-primary btn-active">מחיקה</a></td>

第二，我建议检查你的表 file 的 MySQL 方案并确保您提供相同类型的 refferal_customer_id .例如，我想知道这应该是数值，而不是:

<?php

    header('Content-Type: text/html; charset=utf-8');

    /*
     * I propose to check all data before you will open connection to MySQL,
     * because if data is not correct - connection will not be used
     * I strongly propose to process errors in your client scripts
     */
    $data = json_decode(file_get_contents("php://input"));
    if (!isset($data) ||
        !isset($data->reffer_customer_id) ||
        !is_numeric($data->reffer_customer_id)
    ) {
        echo 'Incorrect data specified';
        exit;
    }

    /*
     * Connecting
     */        
    $connect = mysqli_connect("localhost", "root", "", "hamatkin");

    /*
     * I don't know why you using it for delete query if your id is numeric
     */
    mysqli_query($connect, "SET character_set_client = utf8");
    mysqli_query($connect, "SET character_set_connection = utf8");
    mysqli_query($connect, "SET character_set_results = utf8");

    /*
     * I don't recommend you to pass mysql connection error in raw format,
     * because it can be used against you
     * And don't forget to halt your script if error occurred
     */
    if (mysqli_connect_errno()) {
        echo "Failed to connect to MySQL";
        exit;
    }

    /*
     * Here your delete query
     */
    $delId = mysqli_real_escape_string($connect, $data->reffer_customer_id);
    if (!$delId) {
        echo 'Incorrect id for delete query specified';
        exit;
    }

    /*
     * Don't forget to check errors
     */
    if (!mysqli_query($connect, "DELETE FROM file WHERE reffer_customer_id = $delId")) {
        echo "Failed to delete reffer_customer with id: $delId";
        exit;
    }

    /*
     * And close the connection
     */
    mysqli_close($connect);

    /*
     * As for me: better to put next route into response for redirecting from client
     * but I don't know what you will do with this, so, putting header
     */
    header('Location: /hamatkin/#/allPriceOffers');