Can't set property of object if this property is array - php

Question

yii advanced 2.0.13
#property $content keeps array (before saving in DB it will be encoded in json in database.)
#property string $name
So in ActiveForm I have inputs with names like content[image] or content[anykey], also I have not-array properties like name; I want to put new values after Post, well:
echo $model->name; // output: Test
$model->name = 'any new name';
echo $model->name; // any new name
It works, but
print_r($model->content);
/* output
Array
(
[title] => bla
[anykey] =>
[seo-title] => bla-bla
)*/
$model->content['anykey'] = 'bla-bla-bla';
echo $model->content['anykey']; // null output:
It doesn't. We can not set new value in array property, so I tried next tip:
$content = $model->content;
$content['anykey'] = 'bla-bla-bla';
$model->content = $content;
echo $model->content['anykey']; // bla-bla-bla
It works
Can somebody explain, why is this happening?
Controller
<?php
namespace backend\controllers;
use Yii;
use common\models\Categories;
use backend\models\CategoriesCRUD;
use yii\web\Controller;
use yii\web\NotFoundHttpException;
use yii\filters\VerbFilter;
use yii\web\UploadedFile;
/**
* CategoriesController implements the CRUD actions for Categories model.
*/
class CategoriesController extends Controller
{
/**
* #inheritdoc
*/
public function behaviors()
{
return [
'verbs' => [
'class' => VerbFilter::className(),
'actions' => [
'delete' => ['POST'],
],
],
];
}
...
/**
* Updates an existing Categories model.
* If update is successful, the browser will be redirected to the 'view' page.
* #param integer $id
* #return mixed
*/
public function actionUpdate($id)
{
$model = $this->findModel($id);
// here I put code above
$model->content['anykey'] = 'bla-bla-bla';
echo $model->content['anykey']; // old value
// die();
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->redirect(['view', 'id' => $model->id]);
} else {
return $this->render('update', [
'model' => $model,
]);
}
}
}
Model
<?php
namespace common\models;
use Yii;
use yii\web\UploadedFile;
/**
* This is the model class for table "{{%categories}}".
*
* #property integer $id
* #property string $name
* #property integer $status
* #property integer $sort_order
* #property integer $parent_id
* #property string $content
*
* #property Categories $parent
* #property Categories[] $categories
* #property CategoriesRelationships[] $categoriesRelationships
* #property CategoriesRelationships[] $categoriesRelationships0
* #property ProductsToCategories[] $productsToCategories
*/
class Categories extends \yii\db\ActiveRecord
{
/**
* #inheritdoc
*/
public static function tableName()
{
return '{{%categories}}';
}
/**
* #inheritdoc
*/
public function rules()
{
return [
[['name'], 'required'],
[['status', 'sort_order'], 'integer'],
['content', 'each', 'rule' => ['trim']],
[['name'], 'string', 'max' => 255],
[['parent_id'], 'exist', 'skipOnError' => true, 'targetClass' => Categories::className(), 'targetAttribute' => ['parent_id' => 'id']],
];
}
/**
* #inheritdoc
*/
public function attributeLabels()
{
return [
'id' => 'ID',
'name' => 'Заголовок',
'status' => 'Показывать',
'sort_order' => 'Порядок сортировки',
'parent_id' => 'Родительская категория',
'content' => 'Содержание',
];
}
public function beforeSave($insert)
{
if (parent::beforeSave($insert)) {
/* Обработка данных перед занесением в базу
в content содержится любая контентная информация
*/
// #TODO добавить собственную валидацию изображений и свои методы для их обработки (Для категорий, аватарок и прч)
// here I put solution, but before I found it I've been trying in Controller
$content = (array) $this->content;
$content['image'] = $this->uploadImage($this, $content, 'image', 'content[image]');
$this->content = $content;
$this->content = json_encode($this->content, JSON_UNESCAPED_UNICODE);
return true;
}
return false;
}
}

Answer 1

Although it is not directly an answer to your question:
I'd suggest to use different attributes for the serialized value, say serializedContent. This way - content is always an array, and serializedContent is always a json string.
Then create a setter and a getter in your model:
public function setContent($value) {
$this->serializedContent = json_encode($value);
}
public function getContent() {
return json_decode($this->serializedContent,true);
}