如何使用两个foreach向数据库中插入数据

Question

我有两个数组 view.I 需要插入彼此对应的数据。

以下是我的观点

<?php foreach ($seats as $seat):?>

        <tr>
            <td><input type="checkbox" name="seat_id[]" value=<?php echo $seat->seatNumber;?>></td>
            <td><?php echo $seat->seatLabel;?></td>
            <td><input type="hidden" name="seat_label[]" value="<?php echo $seat->seatLabel;?>"></td>
        </tr>
        <?php endforeach;?>

从上方看 seat_id 和 seat_label 携带必须存储在数据库中的值

这是我的控制器

if($this->form_validation->run()){
            $seat_ids = $this->input->post("seat_id[]");
            $seat_labels = $this->input->post("seat_label[]");
            $busNumber = $this->input->post("busNumber");
            $bookingDate = $this->input->post("bookingDate");
            $reportingTime = $this->input->post("reportingTime");
            $departureTime = $this->input->post("departureTime");
            $this->load->model('Queries');
     $insert = $this->Queries->saveMessage($seat_ids, $seat_labels, $busNumber, $bookingDate, $reportingTime, $departureTime);

这是我的模型

public function saveMessage($seat_ids, $seat_labels, $busNumber, $bookingDate, $reportingTime, $departureTime){

    foreach($seat_ids as $seat_id )
          foreach($seat_labels as $seat_label ){
    {
        $record = array(
        'seatNumber' => $seat_id, 
        'seatLabel'  => $seat_label,
        'bookingDate' => $bookingDate,
        'reportingTime' => $reportingTime,
        'departureTime' => $departureTime, 
        'busNumber' => $busNumber,
        'seatUse' => 'Enabled',
        'seatStatus' => 'Available',);
        $this->db->insert('schedule', $record);
    }

Answer 1

您的代码应为

 foreach($seat_ids as $seat_id ){
     foreach($seat_labels as $seat_label ){
        $record = array(
        'seatNumber' => $seat_id, 
        'seatLabel'  => $seat_label,
        'bookingDate' => $bookingDate,
        'reportingTime' => $reportingTime,
        'departureTime' => $departureTime, 
        'busNumber' => $busNumber,
        'seatUse' => 'Enabled',
        'seatStatus' => 'Available',);
        $this->db->insert('schedule', $record);
   }
}

Answer 2

如果您的 $seat_id 和 $seat_label 中的键匹配，您可以像这样只使用一个 foreach 来完成它：

foreach($seat_ids as $seat_key => $seat_id ) {
    $record = array(
    'seatNumber' => $seat_id, 
    'seatLabel'  => $seat_label[$seat_key],
    'bookingDate' => $bookingDate,
    'reportingTime' => $reportingTime,
    'departureTime' => $departureTime, 
    'busNumber' => $busNumber,
    'seatUse' => 'Enabled',
    'seatStatus' => 'Available',);
    $this->db->insert('schedule', $record);
}

Answer 3

目前表格没有座位-标签关系。如果你不勾选所有ids，那么之后的标签将对应错误的id（即ids的posted数组小于labels的数组）

因此您必须在表单名称中引入必要的关系：

<input type="checkbox" name="seat[{index}][id]" value="{id}">
<input type="hidden" name="seat[{index}][label]" value="{label}">

如果提交，您现在可以检查是否勾选了两个框

// using $_POST for simplicity
$seats = array_filter($_POST['seat'], function (array $row) {
    return count($row) === 2;
});

现在你有一个数组，其中对应的 ids/labels 只需要一个循环。

编辑：忽略了第二个输入是一个隐藏字段，但这根本不影响问题。

Answer 4

考虑到您正在使用 JSON 提交表单数据并保持数组之间的顺序。

你可以试试：

$i = 0;
foreach($seat_ids as $seat_id )
{
    $record = array(
    'seatNumber' => $seat_id, 
    'seatLabel'  => $seat_labels[$i],
    'bookingDate' => $bookingDate,
    'reportingTime' => $reportingTime,
    'departureTime' => $departureTime, 
    'busNumber' => $busNumber,
    'seatUse' => 'Enabled',
    'seatStatus' => 'Available',);
    $this->db->insert('schedule', $record);
    $i++;
}

Answer 5

希望对您有所帮助:

像这样使用 insert_batch 而不是 insert :

public function saveMessage($seat_ids, $seat_labels, $busNumber, $bookingDate, $reportingTime, $departureTime)
{

    foreach($seat_ids as $key => $seat_id )
    {
            $record[] = array(
            'seatNumber' => $seat_id, 
            'seatLabel'  => $seat_labels[$key],
            'bookingDate' => $bookingDate,
            'reportingTime' => $reportingTime,
            'departureTime' => $departureTime, 
            'busNumber' => $busNumber,
            'seatUse' => 'Enabled',
            'seatStatus' => 'Available');
    }
    $this->db->insert_batch('schedule', $record);
}

更多:https://www.codeigniter.com/user_guide/database/query_builder.html#inserting-data

如何使用两个foreach向数据库中插入数据

How to use two foreach to insert data in database

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