PHP code example of yii2tech / ar-dynattribute

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

yii2tech / ar-dynattribute example snippets

class m??????_??????_create_user extends \yii\db\Migration
{
    public function up()
    {
        $this->createTable('User', [
            'id' => $this->primaryKey(),
            'username' => $this->string()->notNull(),
            'email' => $this->string()->notNull(),
            'passwordHash' => $this->string()->notNull(),
            // ...
            'viewParams' => $this->text(), // field, which stores view parameters in serialized state
        ]);
    }

    public function down()
    {
        $this->dropTable('User');
    }
}

use yii\db\ActiveRecord;
use yii2tech\ar\dynattribute\DynamicAttributeBehavior;

class User extends ActiveRecord
{
    public function behaviors()
    {
        return [
            'dynamicAttribute' => [
                'class' => DynamicAttributeBehavior::className(),
                'storageAttribute' => 'viewParams', // field to store serialized attributes
                'dynamicAttributeDefaults' => [ // default values for the dynamic attributes
                    'bgColor' => 'green',
                    'showSidebar' => true,
                ],
            ],
        ];
    }

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

    // ...
}

$model = new User();
// ...
$model->bgColor = 'red';
$model->showSidebar = false;
$model->save(); // 'bgColor' and 'showSidebar' are serialized and stored at 'viewParams'
echo $model->viewParams; // outputs: '{"bgColor": "red", "showSidebar": false}'

$refreshedModel = User::findOne($model->getPrimaryKey());
echo $refreshedModel->bgColor; // outputs 'red'
echo $refreshedModel->showSidebar; // outputs 'false'

class User extends ActiveRecord
{
    public function behaviors()
    {
        return [
            'dynamicAttribute' => [
                'class' => DynamicAttributeBehavior::className(),
                'storageAttribute' => 'viewParams',
                'dynamicAttributeDefaults' => [
                    'bgColor' => 'green',
                    'showSidebar' => true,
                    'fontColor' => 'black', // newly added attribute
                ],
            ],
        ];
    }

    // ...
}

$newModel = new User();
echo $newModel->bgColor; // outputs 'green'
echo $newModel->showSidebar; // outputs 'true'

$oldModel = User::find()->orderBy(['id' => SORT_ASC])->limit(1)->one();
echo $oldModel->viewParams; // outputs: '{"bgColor": "red", "showSidebar": false}'
echo $oldModel->fontColor; // outputs: 'black'

$newModel = new User();
$newModel->bgColor = 'blue'; // works fine
$newModel->unExistingAttribute = 10; // throws an exception!