The preferred way to install this extension is through composer.
Either run
composer require mirkhamidov/yii2-behavior-jsonfield "dev-master"
add behavior entry to you model
/** @inheritdoc */
public function behaviors() {
return ArrayHelper::merge(parent::behaviors(), [
'interestsJson' => [
'class' => JsonFieldBehavior::class,
'field' => 'interests',
],
'languagesJson' => [
'class' => JsonFieldBehavior::class,
'field' => 'languages',
],
]);
}