attachBehavior() public method

This method will create the behavior object based on the given configuration. After that, the behavior object will be attached to this component by calling the [[Behavior::attach()]] method.
See also: detachBehavior()
public attachBehavior ( string $name, string | array | Behavior $behavior ) : Behavior
$name string the name of the behavior.
$behavior string | array | Behavior the behavior configuration. This can be one of the following: - a [[Behavior]] object - a string specifying the behavior class - an object configuration array that will be passed to [[Yii::createObject()]] to create the behavior object.
return Behavior the behavior object
 protected function attachSupportBehaviors(Component $owner)
 {
     $rangeAttributes = [];
     foreach ($this->attributes as $attribute => $dbAttribute) {
         $rangeAttributes[] = $attribute . '_start';
         $rangeAttributes[] = $attribute . '_end';
         $owner->attachBehavior(0, ['class' => DateTimeRangeBehavior::class, 'startAttribute' => $attribute . '_start_local', 'endAttribute' => $attribute . '_end_local', 'targetAttribute' => $attribute . '_range']);
     }
     $owner->attachBehavior(0, ['class' => DateTimeBehavior::class, 'originalFormat' => ['date', 'yyyy-MM-dd'], 'targetFormat' => ['date', 'dd.MM.yyyy'], 'attributes' => $rangeAttributes]);
 }