You must use the "set" method to update an entry.

I found several topics related to the error but I couldn't solve it. Below is a screenshot of the error and the code that is showing an error.

CodeIgnter\Views\Header

Code:

<!-- Modal -->
<div class="modal fade" id="signupModal" tabindex="-1" role="dialog" aria-hidden="true">
    <div class="modal-dialog modal-lg" role="document">
        <div class="modal-content rounded-0 border-0 p-4">
            <div class="modal-header border-0">
                <h3>Nova Conta</h3>
                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                    <span aria-hidden="true">&times;</span>
                </button>
            </div>
            <div class="modal-body">
                <div class="login">
                    <form method="post" action="<?=base_url('user/register')?>" class="row">
                        <div class="col-12">
                            <input type="text" class="form-control mb-3" id="userid" name="userid" placeholder="Nome de Usuário">
                        </div>
                        <div class="col-12">
                            <input type="password" class="form-control mb-3" id="user_pass" name="user_pass" placeholder="Senha">
                        </div>
                        <div class="col-12">
                            <input type="password" class="form-control mb-3" id="user_pass_confirm" name="user_pass_confirm" placeholder="Confirmar Senha">
                        </div>
                        <div class="col-12">
                          <select class="form-control mb-3" id="sex" name="sex">
                            <option value="M">Masculino</option>
                            <option value="F">Feminino</option>
                          </select>
                        </div>
                        <div class="col-12">
                            <input type="email" class="form-control mb-3" id="email" name="email" placeholder="E-mail">
                        </div>
                        <div class="col-12">
                            <input type="submit" name="register" class="btn btn-primary" value="REGISTRAR">
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
<!-- Modal -->

CodeIgniter\Controllers\User

PHP Code:

<?php namespace App\Controllers;

use App\Models\User_model;

class User extends BaseController
{
    
    public function register()
    {
        helper('form');
        $model = new User_model();
        if(!$this->validate([
            'userid' => 'required',
            'user_pass' => 'required'
        ])) {
            echo view('template/header');
            echo view('pages/error');
            echo view('template/footer');
        } else {
            $model->save([
                'userid' => $this->request->getVar('userid'),
                'user_pass' => $this->request->getVar('user_pass'),
                'sex' => $this->request->getVar('sex'),
                'email' => $this->request->getVar('email')
            ]);
            echo view('template/header');
            echo view('pages/success');
            echo view('template/footer');
        }
    }
} 


CodeIgniter\Models\User_model

PHP Code:

<?php namespace App\Models;

use CodeIgniter\Model;

class User_model extends Model
{
    protected $table = 'login';
    protected $primaryKey = 'account_id';
    
    protected $allowedFields = ['userid, user_pass, sex, email'];

    public function getAccount($account_id = null)
    {
        if($account_id === null) {
            return $this->findAll();
        }
        return $this->asArray()->where(['account_id' => $account_id])->first();
    }
} 


Attached Files

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You don't show what your database looked like, but it is possible a spelling difference between the two will cause this issue.

Although, not affecting you, when using objects, it is important to pass in the correct object, a spelling mistake on the variable name will cause the same error.

The error is for an insert your not showing any insert code.

What did you Try? What did you Get? What did you Expect?

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