Question

Codeigniter表单验证复选框验证不起作用。我一直在做一个项目，我可以在我的视图中选择不同的复选框。当我提交表单如果所有框都是空的那么应该抛出回调消息。

但出于某种原因无法使用

<input type="checkbox" name="tables[]" value="<?php echo $table;?>" />

我已经浏览了堆栈溢出网站和其他并尝试了很多但没有一些工作。

问题什么是使我的回调函数正常工作的最佳解决方案，如果所有复选框都为空，那么将抛出表单验证消息？

对于任何想要var转储结果的人

array(3) { 
    [0]=> string(4) "user" 
    [1]=> string(10) "user_group" 
    [2]=> string(16) "user_join_status" 
}

控制器

<?php

class Backup extends MX_Controller {

    public function __construct() {
        parent::__construct();
        $this->load->library('admin/users');
        $this->load->model('admin/tool/model_tool_backup');
    }

    public function index() {

        $data['tables'] = $this->model_tool_backup->get_tables();

        $this->load->library('form_validation');

        $this->form_validation->set_rules('tables[]', 'Table', 'callback_check');

        // $this from library MY_Form_Validation for HMVC

        if ($this->form_validation->run($this) == FALSE) {

            $data['sidebar'] = Modules::run('admin/common/sidebar/index');
            $data['navbar'] = Modules::run('admin/common/navbar/index');
            $data['header'] = Modules::run('admin/common/header/index');
            $data['footer'] = Modules::run('admin/common/footer/index');

            $this->load->view('tool/backup_view', $data);

        } else {

            var_dump($this->input->post('tables[]'));

            //$this->output->set_header('Pragma: public');
            //$this->output->set_header('Expires: 0');
            //$this->output->set_header('Content-Description: File Transfer');
            //$this->output->set_header('Content-Type: application/octet-stream');
            //$this->output->set_header('Content-Disposition: attachment; filename=' . $this->db->database . '_' . date('Y-m-d_H-i-s', time()) . '_backup.sql');
            //$this->output->set_header('Content-Transfer-Encoding: binary');

            //$this->output->append_output($this->backup_codeigniter($this->input->post('backup[]')));

        }
    }

    public function check($post_tables) {
        $post_tables = $this->input->post('tables[]');

        if (!isset($post_tables)) {
            $this->form_validation->set_message('check', 'You Must Select At Least One Table To Do Back Up!');
            return FALSE;
        } else {
            return TRUE;
        }
    }

    public function backup_codeigniter($tables) {
        $this->load->dbutil();

        $prefs = array(
            'tables' => $tables, 
            'ignore' => array(),
            'format' => 'txt',
            'filename' => $this->db->database . '_' . date('Y-m-d_H-i-s', time()) . '_backup.sql',
            'add_drop' => TRUE,
            'add_insert' => TRUE,
            'newline' => "\n" 
        );

        return $this->dbutil->backup($prefs);
    }
}

查看

<?php echo form_open_multipart('admin/tool/backup', array('class' => 'form-horizontal')); ?>
<?php echo validation_errors('<div class="alert alert-danger"><i class="fa fa-exclamation-circle"></i> <button type="button" class="close" data-dismiss="alert">&times;</button>', '</div>'); ?>
<div class="form-group">
    <label class="col-sm-2 control-label">Backup</label>
    <div class="col-sm-10">
        <div class="well well-sm" style="height: 150px; overflow: auto;">
            <?php foreach ($tables as $table) { ?>
                <div class="checkbox">
                    <label>
                        <input type="checkbox" name="tables[]" value="<?php echo $table; ?>"/>
                        <?php echo $table; ?></label>
                </div>
            <?php } ?>
        </div>
        <a onclick="$(this).parent().find(':checkbox').prop('checked', true);">Select All</a> /
        <a onclick="$(this).parent().find(':checkbox').prop('checked', false);">Unselect All</a>
    </div>
</div>

<div class="button-group">
    <div class="form-group text-right">
        <button type="submit" class="btn btn-lg btn-inverse">Click to Backup Database</button>
    </div>
</div>
<?php echo form_close(); ?>

对于HMVC的MY_Form_Validation库为什么在$this->form_validation->run($this)中需要$ this来进行回调

<?php

class MY_Form_validation extends CI_Form_validation {

    function run($module = '', $group = '') {
        (is_object($module)) AND $this->CI = &$module;
        return parent::run($group);
    }

}

Answer 1

更改这些行（相应地）：

$this->form_validation->set_rules('tables[]', 'Table', 'callback_check');
...
if ($this->form_validation->run($this) == FALSE) {

到此：

$this->form_validation->set_rules('tables', 'Table', 'callback_check');
...
if ($this->form_validation->run() == FALSE) {

现在你的回调函数应该接收像这样发送的参数：

public function check($post_tables) {

    if (!isset($post_tables)) {
        $this->form_validation->set_message('check', 'You Must Select At Least One Table To Do Back Up!');
        return FALSE;
    } else {
        return TRUE;
    }

}

<强>更新

由于此问题与Codeigniter的非标准HMVC设置有关，请仔细阅读此博客，我发现这一行：

 $this->form_validation->CI =& $this;   // Hack to make it work properly with HMVC

您可能会找到您要找的内容：https://github.com/ci-bonfire/Bonfire/issues/295

Answer 2

解决了问题似乎是codeigniter hmvc表单验证无法验证选中的盒子数组的问题。所有其他回叫工作正常，但只是选中的框没有验证是否正确。

我的修复工作

因此我必须使用服务器REQUEST_METHOD来使用自己的自定义验证，如下例所示。

<?php

class Backup extends MX_Controller {

private $error = array();

public function __construct() {
    parent::__construct();
    $this->load->library('admin/users');
    $this->load->model('admin/tool/model_tool_backup');
    $this->load->library('form_validation');
}

public function index() {
    $tables = $this->input->post('tables');

    $data['tables'] = $this->model_tool_backup->get_tables();

    if (($this->input->server('REQUEST_METHOD') == 'POST') && $this->validate()) {

    }

    if (isset($this->error['warning'])) {
        $data['error_warning'] = $this->error['warning'];
    } else {
        $data['error_warning'] = '';
    }

    if (isset($this->error['tables'])) {
        $data['error_tables'] = $this->error['tables'];
    } else {
        $data['error_tables'] = '';
    }

    $data['sidebar'] = Modules::run('admin/common/sidebar/index');
    $data['navbar'] = Modules::run('admin/common/navbar/index');
    $data['header'] = Modules::run('admin/common/header/index');
    $data['footer'] = Modules::run('admin/common/footer/index');

    $this->load->view('tool/backup_view', $data);

}

public function validate() {
    if (!isset($_POST['tables'])) {
        $this->error['tables'] = 'You must select at least one item';
    }

    return !$this->error;
}

public function backup_codeigniter($tables) {
    $this->load->dbutil();

    $prefs = array(
        'tables' => $tables, 
        'ignore' => array(),
        'format' => 'txt',
        'filename' => $this->db->database . '_' . date('Y-m-d_H-i-s', time()) . '_backup.sql',
        'add_drop' => TRUE,
        'add_insert' => TRUE,
        'newline' => "\n" 
    );

    return $this->dbutil->backup($prefs);
}

}

Codeigniter-HMVC表单验证复选框数组回调验证不起作用

2 个答案: