仅将选定的行导出到 Laravel 中的 csv

Question

我必须使用复选框仅将选定的行导出到 csv 这是我的代码。 我正在使用 ajax 将多个用户 ID 传递给 controller 但我不知道如何仅导出传递的用户 ID 请帮助解决问题，它只是返回一个空的 ZBF57C906FA7D2BB656D07372E46Z1

出口Csv按钮

<a data-href="/admin/export/selected/data" class="btn btn-filter btn-secondary" id="export_records">Export
            Selected</a>

Ajax 代码为多个 select

    <script>
    $(document).on('click', '#selectAll', function() {

        $(".user_checkbox").prop("checked", this.checked);
        $("#select_count").html($("input.user_checkbox:checked").length + " Selected");
    });
    $(document).on('click', '.user_checkbox', function() {

        if ($('.user_checkbox:checked').length == $('.user_checkbox').length) {
            $('#selectAll').prop('checked', true);
        } else {
            $('#selectAll').prop('checked', false);
        }
        $("#select_count").html($("input.user_checkbox:checked").length + " Selected");
    });
    $(document).ready(function() {
        $.ajaxSetup({
            headers: {
                'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
            }
        });

        $('#export_records').on('click', function(e) {
            var user = [];
            $(".user_checkbox:checked").each(function() {
                user.push($(this).data('user-id'));
            });
            if (user.length <= 0) {
                alert("Please select records.");
            } else {


                var selected_values = user;
                $.ajax({
                    type: "get",
                    url: "{{ route('export.csv') }}",
                    cache: false,
                    data: 'user_id=' + selected_values,
                    success: function(response) {

                        let _url = $("#export_records").data('href');
                        window.location.href = _url;
                    }
                });
            }

        });

    });

</script>

Controller 下载 csv

 public function exportCsv(Request $request)
{
    $users = User::whereIn('id', explode(",", $request->user_id))->get();
    $filename = "UsersData.csv";
    $headers = array(
        'Content-Type' => 'text/csv',
        "Content-Disposition" => "attachment; filename=$filename",
        "Pragma"              => "no-cache",
        "Cache-Control"       => "must-revalidate, post-check=0, pre-check=0",
        "Expires"             => "0"
    );
    $callback = function() use($filename, $users) {
    $handle = fopen('php://output', 'w');
    fputcsv($handle, array('name','email', 'company_name','role', 'created_at'));

    foreach ($users as $user) {
            $row['name']  = $user->name;
            $row['email']    = $user->email;
            $row['company_name']    = $user->company_name;
            $row['role']  = $user->roles->name;
            $row['created_at']  = $user->created_at;
        fputcsv($handle, array($row['name'], $row['email'], $row['company_name'], $row['role'], $row['created_at']->format('l jS \of F Y')));
    }

    fclose($handle);
};
    

    return Response::stream($callback, 200, $headers);
}

请注意，此代码适用于 csv 中的所有用户数据导出，例如$users = User::all()但不适用于选定的

ajax响应

Answer 1

尝试发送数据，如

data: {user_id: selected_values}

代替，

data: 'user_id=' + selected_values,

然后在后端你不需要使用explode，你会直接得到用户ID数组。

Answer 2

希望我得到了解决方案，我只是错过了 URL 和window.location.href我还必须传递 user_id 。 所以这里是修改的部分，

$.ajax({
      type: "GET",
       url: "{{ route('exportOption.Userscsv') }}",
       cache: false,
       data: 'user_id=' + selected_values,
       success: function(response) {
          let _url = $("#export_records").data('href');
          var selected_values = user;
          window.location.href = _url + '?user_id=' + selected_values;

                    }
           });

希望对大家有所帮助。