Calling unknown method: yii\db\ActiveQuery::formName() - php

Question

I'm trying to learn yii 2.0 by creating a simple form for adding new posts.
Here's the respective method in my SiteController (have also added use app\models\Posts; at the top):
public function actionSave($id=NULL){
if($id = NULL)
$model = new Posts;
else
$model = $this->loadModel($id);
if(isset($_POST['Posts'])){
$model->load($_POST);
if($model->save()){
Yii::$app->session->setFlash('success', 'Model has been saved');
$this->redirect($this->createUrl('site/save', ['id' => $model->id]));
}else
Yii::$app->session->setFlash('error', 'Model could not be saved');
}
echo $this->render('save', ['model' => $model]);
}
It renders save view file. Here's that view file:
<?php
use yii\helpers\Html;
use yii\widgets\ActiveForm;
?>
<?php $form = ActiveForm::begin(['options' => ['class' => 'form-horizontal', 'role' => 'form']]) ?>
<div class="form-group">
<?php echo $form->field($model, 'title')->textInput(['class' => 'form-control']); ?>
</div>
<div class="form-group">
<?php echo $form->field($model, 'data')->textArea(['class' => 'form-control']); ?>
</div>
<?php echo Html::submitButton('Submit', ['class' => 'btn btn-primary pull-right']); ?>
<?php ActiveForm::end();
I'm expecting a form, but it's showing an error Calling unknown method: yii\db\ActiveQuery::formName()
What am i doing wrong here?

Answer 1

public function actionSave($id=NULL){
if($id == NULL)
$model = new Posts;
else
$model = $this->loadModel($id);
if(isset($_POST['Posts'])){
$model->load($_POST);
if($model->save()){
Yii::$app->session->setFlash('success', 'Model has been saved');
//Updated
$this->redirect(['save', 'id' =>$model->id]);
//Remove this
//$this->redirect($this->createUrl('site/save', ['id' => $model->id]));
}else
Yii::$app->session->setFlash('error', 'Model could not be saved');
}
echo $this->render('save', ['model' => $model]);
}

Answer 2

I suppose you use the loadModel function, if so, change this line
$model = Posts::find($id);
to this
$model = Posts::find()->where(['id' => $id])->one();
The error occurs because the object returned by loadModel is a ActiveQuery and the ActiveForm expected a ActiveRecord.

Answer 3

Calling unknown method: frontend\models\SignupForm::save()
SiteController.php
public function actionSignup()
{
$model = new SignupForm();
if ($model->load(Yii::$app->request->post()) && $model->save()) {
$fileName = $model->username;
$model->file =UploadedFile::getInstance($model,'file');
$model->file->saveAs('uploads/'.$fileName.'.'.$model->file->extension );
$model->filePath = 'uploads/'.$fileName.'.'.$model->file->extension ;
$model->save();
return $this->redirect(['view', 'id' => $model->idQuiz]);
//}
// if ($model->load(Yii::$app->request->post())) {
if ($user = $model->signup()) {
if (Yii::$app->getUser()->login($user)) {
return $this->goHome();
}
}
}
return $this->render('signup', [
'model' => $model,
]);
}
signup.php
<?= $form->field($model, 'file')-> fileinput(); ?>
SignupForm.php
<?php
namespace frontend\models;
use common\models\User;
use yii\base\Model;
use Yii;
/**
* Signup form
*/
class SignupForm extends Model
{
public $username;
public $email;
public $password;
public $first_name;
public $last_name;
public $address;
public $state_id;
public $city_id;
public $file;
public $filePath;
/**
* #inheritdoc
*/
public function rules()
{
return [
['username', 'filter', 'filter' => 'trim'],
['username', 'required'],
['first_name', 'required'],
['last_name', 'required'],
['address', 'required'],
['state_id', 'required'],
['city_id', 'required'],
['filePath', 'required'],
['username', 'unique', 'targetClass' => '\common\models\User', 'message' => 'This username has already been taken.'],
['username', 'string', 'min' => 2, 'max' => 255],
['email', 'filter', 'filter' => 'trim'],
['email', 'required'],
['email', 'email'],
['email', 'string', 'max' => 255],
['email', 'unique', 'targetClass' => '\common\models\User', 'message' => 'This email address has already been taken.'],
['password', 'required'],
['password', 'string', 'min' => 6],
];
}
/**
* Signs user up.
*
* #return User|null the saved model or null if saving fails
*/
public function signup()
{
if (!$this->validate()) {
return null;
}
$user = new User();
$user->first_name = $this->first_name;
$user->last_name = $this->last_name;
$user->address = $this->address;
$user->state_id = $this->state_id;
$user->city_id = $this->city_id;
$user->filePath = $this->filePath;
$user->username = $this->username;
$user->email = $this->email;
$user->setPassword($this->password);
$user->generateAuthKey();
return $user->save() ? $user : null;
}
}