Yii2 active record model not saving data

Question

I\'ve built a simple form model & view, a simple AR model, and a simple controller. The form model assigns the correct values to the AR instance, but when I call save(),

Answer 1

How to Troubleshoot

First thing you should add while developing to your _form.php is errorSummary():

<?php $form = ActiveForm::begin(); ?>
// Some input fields
...
<?= $form->errorSummary($model); ?> // <--- Add this 
...
<?php ActiveForm::end(); ?> 

Simplify

Why not use scenarios instead if there is some minimal variation form to form:

In your model:

    public function rules()
    {
        return [
            [['field_1'], 'required', 'on' => self::SCENARIO_ADD],  // only on add
            [['field_2'], 'required', 'on' => self::SCENARIO_UPDATE], // only on update
            [['field_3', 'field_4'], 'required'], // required all the time
        ];
    }

In your controller:

public function actionAdd()
{
    $model = new Model();
    $model->scenario = Model::SCENARIO_ADD;
    if ($model->load(Yii::$app->request->post())) {
        return $this->redirect(['view', 'id' => $model->id]);
    }

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

Behaviors

Alternatively, rather than assign the user directly in your model, you could use a behavior like so:

https://www.yiiframework.com/doc/api/2.0/yii-behaviors-blameablebehavior

/**
 * {@inheritdoc}
 */
public function behaviors()
{
    return [
        [
            'class' => \yii\behaviors\BlameableBehavior::className(),
            'value' => Yii::$app->user->identity->username,
        ],
        [
            'class' => \yii\behaviors\TimestampBehavior::className(),
            'value' => new \yii\db\Expression('NOW()'),
        ],
        [
            'class' => 'sammaye\audittrail\LoggableBehavior',
            'userAttribute' => 'updated_by', //blameable attribute of the current model.
            'ignored' => ['updated_by', 'updated_at'], // This ignores fields from a selection of all fields, not needed with allowed
        ],
    ];
}   

Answer 2

For who is struggling with this problem, I would remember to check the beforeSave method, if present. I mistakenly commented out the return statement.

public function beforeSave($insert)
{
    // never toggle comment on this!!!
    return parent::beforeSave( $insert); 
}

Answer 3

I ran across the same problem recently, when I combine the Active Record class with The Model class. Cause I know that AR actually extends Model in Yii2. Why not write less code.So I move the code from the Model to the AR.

$model = new User();  
$model->load(Yii::$app->request->post())

But the AR's _attribute didn't get the post data in the form. the form data is actually in a Model object.

object(app\models\User)#39 (12) { ["password"]=> string(6) "google" ["newpass"]=> NULL ["name"]=> string(5) "Jane1" ["email"]=> string(16) "jane@outlook.com" ["_attributes":"yii\db\BaseActiveRecord":private]=> array(2) { ["password_hash"]=> string(60) "$2y$13$.vNKpmosLjW/oYAhIezOZOj8rIG6QJvQj8tGHN2x78.75poXVn6Yi" ["auth_key"]=> string(32) "4XggNakVd-oeU28ny7obdw7gOmZJ-Rbu" }

simply delete the public attribute you want mass assign to the AR instance will make it work.

Answer 4

Use

$prompt->save(false);

If that works that means that some validation rule fails.

Answer 5

In controller, change your if condition as follow :

if ($prompt = $model->post() !== null) {

This will validate that the value which is return is not null.
Your current validation condition is only validating where value is get assigned to variable $prompt or not. And that's why it's always returns true.

Answer 6

Try

    if ($model->load(Yii::$app->request->post())) {
                if ($prompt = $model->post()) {
                    $model->save()
                    Yii::$app->getSession()->setFlash('success', 'Your prompt was created successfully!');
                    return $this->goHome();
                } else {
                    Yii::$app->getSession()->setFlash('error', 'Error while submitting your prompt.');
                }
            }