How to use yii\base\model : getAttributes() method in Yii? - php

Question

I get an error while using getAttributes method : "Call to a member function getAttributes() on a non-object".
Now, In my Controller:
$notifications = Notifications::return_new()->getAttributes();
var_dump($notifications);
In model
public static function return_new(){
return Notifications::find()->where(['is_seen' => 0])->all();
}
Now, the Yii docs say that getAttribute() takes an array as a parameter, so I've tried
$notifications = Notifications::return_new()->getAttributes('text');
but it still persists with the same error. Any help?
Here is the model
<?php
namespace frontend\models;
use Yii;
*/
class Notifications extends \yii\db\ActiveRecord
{
public static function tableName()
{
return 'notifications';
}
public function rules()
{
return [
[['created_on', 'user_id', 'text'], 'required'],
[['user_id'], 'integer'],
[['created_on'], 'safe'],
[['text'], 'string', 'max' => 255]
];
}
/**
* #inheritdoc
*/
public function attributeLabels()
{
return [
'id' => 'ID',
'created_on' => 'Created On',
'user_id' => 'User ID',
'text' => 'Text',
];
}
public static function count_new()
{
$new = Notifications::find()->where(['is_seen' => 0])->all();
return count($new);
}
public static function return_new(){
return Notifications::find()->where(['is_seen' => 0])->all();
}
public function return_all(){
return Notifications::find()->all();
}
public static function checkst(){
return Notifications::find()->where(['id' => 3])->one();
}
public function return_by_date () {
// write something here.
}
}

Answer 1

If you use all() you obtain a collection of models and then you should refere to
Notifications::return_new()[0]->getAttributes();
otherwise you can
public static function return_new(){
return Notifications::find()->where(['is_seen' => 0])->one();
}
and in this case you can use
$notifications = Notifications::return_new()->getAttributes();