Codeigniter 4 在型号为'的控制器上插入函数；I don’我不能在codeigniter4中工作。。我怎样才能解决这个问题？

从两天前开始我就一直面临这个问题。但是，也无法修复它。我已经在下面提交了所有必要的编码信息。请帮帮我。 这是我的控制器

    <?php namespace App\Controllers;

    use App\Models\UserModel;
    use App\Controllers\BaseController;


    class UserController extends BaseController
   {
     protected $userModel;
     public function __construct()
     {
        $this->userModel = new UserModel();
     }

    public function registration() {
        if($this->request->getMethod() == 'post'):
            $rules = $this->userModel->getValidationRules(['only' => ['user', 'email', 'password', 
            'confirm_password', 'gender']]);
            if(!$this->validate($rules)):
                $this->session->setFlashdata('errors', $this->validator->getErrors());
                return redirect()->back()->withInput();
        else:
                $data = $this->request->getPost();
                unset($data['confirm_password'], $data['registration'], $data['ci4app_auto_fill']);
                if($this->userModel->insert($data)):
                    $this->session->setFlashdata('success', 'Your registration has been done successfully. Thank you.');
                    return redirect()->to('login');
                else:
                    echo "Sorry! Your registration has not been successful. Please, try again. Thank you.";
                endif;
            endif;
        endif;
    }

    }

---

你试过自己调试吗？如果是，你到底做了什么？试着用一个小例子来解决这个大问题，用更少的变量等等。。。“一次一个手术。谢谢，@Gildas，谢谢你的热情回应。”。是的。在尝试使用$this->userModel->insert（$data）插入数据库之前，一切正常。但是，只要我尝试插入数据，并看到var_dump的结果，就会发现bool false，这意味着没有插入任何数据，这样的情况就会发生。但未生成任何错误消息。这就是问题所在。再次感谢您。您两次验证您的日期，不确定这是否是问题所在，但这在这里发生。如果在模型中声明验证规则，它们将在所有插入和更新操作中自动运行，则无需将这些验证规则加载到控制器中并在那里运行。非常感谢@marcogmonteiro。然后，我必须在模型中定义一个类-公共函数insertData（$data）{if（$this->db->table（'users'）->insert（$data））：返回true；endif；}-并在控制器中像$this->userModel->insertData（$data）那样调用它。然后，它开始工作并插入数据。但是，问题是，当时我的hashPassword（）函数不起作用，它绑定到$beforeInsert事件，如代码部分的avob帖子所示，因此密码没有被哈希。相比之下，如果我想在controller中使用insert furntion，那么如何从all中选择一些验证规则。使用默认的insert方法并在失败时打印$this->userModel->errors（）。可能有一些验证规则没有通过，因为您可能发送了错误的数据。
    <?php namespace App\Models;

    use CodeIgniter\Model;

    class UserModel extends Model
    {
    protected $table      = 'users';
    protected $primaryKey = 'id';
    protected $returnType = 'array';
    protected $allowedFields = ['user', 'name', 'email', 'phone', 'gender', 'password', 'address', 
    'city', 'estate', 'country', 'image'];
    protected $beforeInsert = ['hashPassword'];
    protected $useSoftDeletes = true;
    protected $useTimestamps = false;
    protected $createdField  = 'created_at';
    protected $updatedField  = 'updated_at';
    protected $deletedField  = 'deleted_at';
    protected $validationRules = [
        'user'              => [
                'label'         => 'User ID',
                'rules'         => 'trim|required|is_unique[users.user,id,{id}]|alpha_numeric|min_length[3]'
        ],
        'gender'            => [
            'label'             => 'Gender',
            'rules'             => 'trim|required'
        ],
        'email'             => [
            'label'             => 'E-mail ID',
            'rules'             => 'trim|required|is_unique[users.email,id,{id}]|valid_email'
        ],
        'password'          => [
            'label'             => 'Password',
            'rules'             => 'trim|required|min_length[5]'
        ],
        'confirm_password'  => [
            'label'             => "Password Confirmation",
            'rules'             => 'trim|required|matches[password]'
        ],
        'phone'             => [
            'label'             => 'Phone Number',
            'rules'             => 'trim|numeric|max_length[13]|is_unique[users.phone,id,{id}]'
        ],
        'address'           => [
            'label'             => 'Address',
            'rules'             => 'trim|alpha_numeric_space'
        ],
        'city'              => [
            'label'             => 'City',
            'rules'             => 'trim|alpha_numeric_space'
        ],
        'estate'            => [
            'label'             => 'Estate',
            'rules'             => 'trim|alpha_space'
        ],
        'country'           => [
            'label'             => 'Country',
            'rules'             => 'trim|alpha_space'
        ]
    ];
    protected $validationMessages = [];
    protected $skipValidation     = false;

    public function hashPassword($data) {
        if(! isset($data['data']['password'])) return $data;
        $data['data']['password'] = password_hash($data['data']['password'], PASSWORD_DEFAULT);
        return $data;
    }
}