CI4：将变量传递给自定义验证规则是作为字符串而不是整数

Question

我正在尝试将页面从 CI3 重写为 CI4。  在 CI3 中，验证规则从控制器获取一个参数。但现在我已经重写了代码，该参数（projectid）将以文本“projectid”的形式出现。  如何将变量从控制器传递到 CI4 中的自定义验证规则？

在app\Config\Validation.php中：

    public array $manageProjectInfo = array (
        'fldPublish' => array (
            'label' => 'Make project public',
            'rules' => 'trim|check_publish_datasets[projectid]'
        )
    );

以下是将pid:projectid写入日志中：

   // check that there are no unpublished datasets if unpublishing project
    public function check_publish_datasets($fldPublish, $pid) { 
        $valid = TRUE;
        $project_model = model('Project_model');
        if (!$fldPublish) {
            log_message('debug','pid: '.$pid);
            $nDatasets = $project_model->get_projectdataavail($pid,$published=TRUE);

            if (count($nDatasets) > 0) {
                $valid = FALSE;
                $error = "This project cannot be unpublished because it contains published datasets.";
            }
        }   
        return $valid;
    }

在应用程序\控制器\管理\Project.php

    public function info($projectid = -1) {
            $basics['pagetitle'] = "Manage Project Information";
            if ($this->request->getPost()) {
                $project['fldPublish'] = $this->request->getPost('fldPublish');
            }
            //Define form attributes
            $data['formattribs'] = array(
                'class' => 'basicForm',
                'id' => 'manage-project-info-form'
            );
            //Create array of input options, setting default values to either what they were in the database or what was entered in post data for form repopulation on error
            $data['fldPublish_publish'] = array(
                'name' => 'fldPublish',
                'id' => 'fldPublish',
                'type' => 'radio',
                'value' => '1',
                'checked' => ($project['fldPublish'] == "1" ? TRUE : FALSE)
            );
            $data['fldPublish_notpublish'] = array(
                'name' => 'fldPublish',
                'id' => 'fldPublish',
                'type' => 'radio',
                'value' => '0',
                'checked' => ($project['fldPublish'] == "0" ? TRUE : FALSE)
            );
            //Check if form validation has already been run and passed   
            //Form validation rules set in form_validation config file
            if (!$this->request->is('post') || !$this->validateData($this->request->getPost(), 'manageProjectInfo')) {
                $this->common->render_page($basics, 'manage/project/info', $data);
            }
            //If successful form validation...
            else {
                //Collect post data for insert
                $project = array(
                    'fldPublish' => $this->request->getPost('fldPublish')
                );
                $validData = $this->validator->getValidated();
                foreach ($validData as $key=>$valid) {
                    $project[$key] = $valid;
                }
                //Check flag-type columns to see if they're set to one, if they aren't set values to zero.
                if ($project['fldPublish'] != 1)
                    $project['fldPublish'] = 0;
                //Convert null dates
                $builder = $this->db->table('tblProject');
                $builder->where('pkProjectID', $projectid);
                $updateattempt = $builder->update($info_changes);
                if ($updateattempt) {
                    //update the projectUpdated date and log a tblProjectChanges record
                    $this->project_model->logProjectUpdated($projectid, "project", "info");
                    $this->session->setFlashdata('successmessage', "Your changes were successfully submitted");
                    return redirect()->to('manage/project/' . $projectid . '/info');
                } else {
                    $data['errormessage'] = "There was a problem writing your changes to the database. Please try again";
                    //Load the views with render_pages, passing either name of main view to load or array of main pages to load
                    $this->common->render_page($basics, 'manage/project/info', $data);
                }
            }
        }
    }

在 CI4 文档中，有一个示例将其他表单输入之一作为参数发送（https://codeigniter.com/user_guide/libraries/validation.html#setting-multiple-rules）。 所以我尝试创建一个隐藏输入并传递它，但它也只是将变量的文本名称打印到日志中。

Answer 1

我最终不得不做两件事来解决这个问题。 首先，我在 CI4 文档中发现，

“如果您的方法需要使用参数，则该函数至少需要三个参数：

1. 要验证的值（$value）
2. 参数字符串（$params）
3. 包含通过表单提交的所有数据的数组（$data）
4. （可选）自定义错误字符串 (&$error)，如上所述。

https://codeigniter.com/user_guide/libraries/validation.html#setting-multiple-rules

但是，即使通过 $params 参数传递我的变量，它仍然作为变量的文本名称传递。

因此，我使用所需的变量向表单添加了隐藏输入，并通过 $data 参数访问它。

    public function check_publish_datasets($fldPublish, string $args, array $data, ?string &$error = null):bool { 

        $pid=$data['projectID'];
        $valid = TRUE;
        $project_model = model('Project_model');
        if (!$fldPublish) {

            $nDatasets = $project_model->get_projectdataavail($pid,$published=TRUE);
            if (count($nDatasets) > 0) {
                $valid = FALSE;
                $error = "This project cannot be unpublished because it contains published datasets.";
            }
        }    
        return $valid;
    }