Yii can't save data - unknown method save()

Question

Hello I am new to Yii framework and I am trying to save data to database. It won't work I don't know where is the problem.

Controller:

namespace app\controllers;

use app\models\Client;
use Yii;
use yii\web\Controller;

class ClientController extends Controller {

    /**
     * Displays Client_Register.
     *
     * @return string
     */
    public function actionAdd() {
        $model = new Client();
        if ($model->load(Yii::$app->request->post())) {

            if ($model->save()) {
                return $this->refresh();
            }
        }
        return $this->render('add', ['model' => $model,]);
    }
}

View:

<?php $form = ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data']]); ?>

<?= $form->field($model, 'name')->textInput(['autofocus' => true]) ?>

<?= $form->field($model, 'lastname') ?>

<?= $form->field($model, 'birthday') ?>

<div class="form-group">
    <?= Html::submitButton('Save', ['class' => 'btn btn-primary', 'name' => 'add-button']) ?>
</div>

<?php ActiveForm::end(); ?>

Model:

namespace app\models;

use yii\base\Model;

/**
 * Client is the model behind the client form.
 */
class Client extends Model {

    public $id;
    public $name;
    public $lastname;
    public $birthday;

    public static function tableName() {
        return 'clients';
    }

    /**
     * @return array the validation rules.
     */
    public function rules() {
        return [
            [['name', 'lastname', 'birthday',], 'required'],
        ];
    }

    public function attributeLabels() {
        return [
            'id' => 'Id',
            'name' => 'Name',
            'lastname' => 'Last Name',
        ];
    }
}

I have already created the database with migrations. But I don't why does this error happen. Should I include some save method in model or how can I solve this issue. I looked at other examples too. They are identical as my code. Do you have any idea where is the problem?

Answer 1

Your Client class extends Model, which does not support saving data in database, thus save() method is not defined. If you want to work with database record, your model should extend ActiveRecord:

class Client extends ActiveRecord {

    public static function tableName() {
        return 'clients';
    }

    public function rules() {
        return [
            [['name', 'lastname', 'birthday'], 'required'],
        ];
    }

    public function attributeLabels() {
        return [
            'id' => 'Id',
            'name' => 'Name',
            'lastname' => 'Last Name',
        ];
    }
}