[Darka]

Could not find in forums how to add autocomplete text field to TbActiveForm (which is bootstrap widget for CActiveForm), so here it is:

In form view, register jquery ui js and css first:

cs()->registerCoreScript('jquery.ui');
cs()->registerCssFile(Yii::app()->clientScript->getCoreScriptUrl().'/jui/css/base/jquery-ui.css');
cs()->registerScript('autocomplete','
		jQuery("#' . CHtml::activeId($model, "username") . '").autocomplete({"showAnim":"fold","source":"/user/ajaxGetUserList"});
	')

Form field is added as usual:

<?php echo $form->textFieldRow($model, 'username', array('class'=>'span2','maxlength'=>255));?>

And in controller:

public function actionAjaxGetUserList(){
		if ( Yii::app()->request->isAjaxRequest ) {
			$data = array();

			if ( isset( $_GET['term'] ) ) {
				$qtxt ="SELECT username FROM " . User::model()->tableSchema->name . " WHERE username LIKE :match LIMIT 10";
				$command =Yii::app()->db->createCommand( $qtxt );
				$command->bindValue( ":match", '%'.$_GET['term'].'%', PDO::PARAM_STR );
				$data =$command->queryColumn();
			}

			echo CJSON::encode( $data );
			Yii::app()->end();
		}
	}