Howto make dependent list / Cómo crear listas dependientes

I´m trying to make an form with 2 dropdownlist.
The firts dropdownlist, has all formats and the second dropdownlist has the concept of each format.

Estoy tratando de crear dos listas. Una tiene todos los formatos y la otra tiene todos los conceptos de cada formato. La idea es que al seleccionar el formato, la otra lista se cargue con sus conceptos

This is my view code / Este es mi código de la vista

    <script>
    $(document).ready(function(){
        
        if ('<?php echo $model->id_cuenta; ?>'  != '' ) {
            $('#ExogenaColconCuenta_id_cuenta').prepend('<option value="<?php echo $model->id_cuenta ?>"><?php echo $model->idCuenta->cuenta." - ".$model->idCuenta->nombre?></option>');
        }
    });
</script>

<div class="form">
    <?php
    /** @var ExogenaColconCuentaController $this */
    /** @var ExogenaColconCuenta $model */
    /** @var AweActiveForm $form */
    $form = $this->beginWidget('ext.AweCrud.components.AweActiveForm', array(
    'id' => 'exogena-colcon-cuenta-form',
    'type'=>'horizontal',
    'enableAjaxValidation' => true,
    'enableClientValidation'=> true,
    )); ?>

    <p class="note">
        <?php echo Yii::t('AweCrud.app', 'Fields with') ?> <span class="required">*</span>
        <?php echo Yii::t('AweCrud.app', 'are required') ?>.    </p>

    <?php echo $form->errorSummary($model) ?>

    <?php echo $form->dropDownListGroup( $model, 'id_formato', array(
        'wrapperHtmlOptions' => array(
            'class' => 'col-sm-5',
            ),
        'widgetOptions' => array(
            'data' => CHtml::listData(ExogenaFormato::model()->findAll(), 'id_formato', ExogenaFormato::representingColumn()), 
            'htmlOptions' => array('empty'=>'Seleccionar'),
        ),
        'ajax' => array(
            'type' => 'POST',
            'url' => Yii::app()->createURL('ExogenaColconCuenta/SelectConcepto'),
            'update' => '#ExogenaColconCuenta_id_concepto',
        ),
    )); ?>

    <?php echo $form->dropDownListGroup( $model, 'id_concepto', array(
        'wrapperHtmlOptions' => array(
            'class' => 'col-sm-5',
        ),
    )); ?>

    <?php /*echo $form->dropDownListGroup( $model, 'id_concepto', array(
        'wrapperHtmlOptions' => array(
            'class' => 'col-sm-5',
            ),
        'widgetOptions' => array(
            'data' => CHtml::listData(ExogenaConcepto::model()->findAll(), 'id', ExogenaConcepto::representingColumn()), 
            'htmlOptions' => array('empty'=>'Seleccionar'),
            )
        )
    ); */?>

    <?php echo $form->dropDownListGroup( $model, 'id_columna', array(
        'wrapperHtmlOptions' => array(
            'class' => 'col-sm-5',
            ),
        'widgetOptions' => array(
            'data' => CHtml::listData(ExogenaColumna::model()->findAll(), 'id', ExogenaColumna::representingColumn()), 
            'htmlOptions' => array('empty'=>'Seleccionar'),
            )
        )
    ); ?>

        <?php
                                        echo $form->select2Group(
                                            $model,
                                            'id_cuenta',
                                            array(
                                                'wrapperHtmlOptions' => array(
                                                    'class' => 'col-sm-5',
                                                    'value'=> "a",
                                                    ),
                                                'widgetOptions' => array(
                                                    'options'=> array(
                                                        'ajax'=>array(
                                                            'url'=> $this->createUrl('cuentaContable/CuentaListAC'),
                                                            'dataType'=>'json',
                                                            'delay'=> 250,
                                                            'data'=> 'js:function(params) {
                                                                return {
                                                                    term: params.term, // search term
                                                                    page: params.page
                                                                };
                                                            }',
                                                            'processResults'=> 'js:function (data, page) {
                                                              return {
                                                                results: data.items
                                                            };
                                                        }',
                                                        'cache' => true,
                                                        ),
                                                        'minimumInputLength'=>2,
                                                        'language'=> 'es',
                                                        'escapeMarkup'=>'js:function (markup) { return markup; }',
                                                        'templateResult'=>'js:function  (item) {
                                                            return item.text;
                                                        }',
                                                        'templateSelection' =>'js:function  (item) {
                                                            return item.text;
                                                        }',
                                                        ),
                                                    'htmlOptions' => array(
                                                        ),
                                                    )
                                                )
                                            );

                                            ?>

                        <?php echo $form->switchGroup($model, 'active') ?>
                                        <?php echo $form->textAreaGroup($model,'notas',
                        array( 'wrapperHtmlOptions' => array( 'class' => 'col-sm-5',),'widgetOptions' => array('htmlOptions' => array('rows' => 5),)) ); ?>
                <div class="form-actions">
                <?php $this->widget('bootstrap.widgets.TbButton', array(
			'buttonType'=>'submit',
			'context'=>'primary',
			'label'=>$model->isNewRecord ? Yii::t('AweCrud.app', 'Create') : Yii::t('AweCrud.app', 'Save'),
		)); ?>
        <?php $this->widget('bootstrap.widgets.TbButton', array(
			//'buttonType'=>'submit',
			'label'=> Yii::t('AweCrud.app', 'Cancel'),
			'htmlOptions' => array('onclick' => 'javascript:history.go(-1)')
		)); ?>
    </div>

    <?php $this->endWidget(); ?>
</div>

This is my controller code / este es el código del controlador

<?php

class ExogenaColconCuentaController extends AweController
{
	/**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */
    public $layout = '//layouts/column1';

    public $defaultAction = 'admin';

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
		$this->render('view', array(
			'model' => $this->loadModel($id),
		));
	}

	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{
		$model = new ExogenaColconCuenta;

        $this->performAjaxValidation($model, 'exogena-colcon-cuenta-form');

        if(isset($_POST['ExogenaColconCuenta']))
		{
			$model->attributes = $_POST['ExogenaColconCuenta'];
			if($model->save()) {
                $this->redirect(array('view', 'id' => $model->id));
            }
		}

		$this->render('create',array(
			'model' => $model,
		));
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		$model = $this->loadModel($id);

        $this->performAjaxValidation($model, 'exogena-colcon-cuenta-form');

		if(isset($_POST['ExogenaColconCuenta']))
		{
			$model->attributes = $_POST['ExogenaColconCuenta'];
			if($model->save()) {
				$this->redirect(array('view','id' => $model->id));
            }
		}

		$this->render('update',array(
			'model' => $model,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		if(Yii::app()->request->isPostRequest)
		{
			// we only allow deletion via POST request
			$this->loadModel($id)->delete();

			// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
			if(!isset($_GET['ajax']))
				$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
		}
		else
			throw new CHttpException(400, 'Invalid request. Please do not repeat this request again.');
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
		$dataProvider=new CActiveDataProvider('ExogenaColconCuenta');
		$this->render('index', array(
			'dataProvider' => $dataProvider,
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin($export= 'grid')
	{
		$model = new ExogenaColconCuenta('search');
		if (intval(Yii::app()->request->getParam('clearFilters'))==1) {
                        EButtonColumnWithClearFilters::clearFilters($this,$model);//where $this is the controller
                }
		//$model->unsetAttributes(); // clear any default values
		//if(isset($_GET['ExogenaColconCuenta']))
			//$model->attributes = $_GET['ExogenaColconCuenta'];

		if (isset($_GET['pageSize'])) {
                        Yii::app()->user->setState('pageSize',(int)$_GET['pageSize']);
                        unset($_GET['pageSize']);  // would interfere with pager and repetitive page size change
                }

		$this->render('admin', array(
			'model' => $model,
			'export' => $export,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer the ID of the model to be loaded
	 */
	public function loadModel($id, $modelClass=__CLASS__)
	{
		$model = ExogenaColconCuenta::model()->findByPk($id);
		if($model === null)
			throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param CModel the model to be validated
	 */
	protected function performAjaxValidation($model, $form=null)
	{
		if(isset($_POST['ajax']) && $_POST['ajax'] === 'exogena-colcon-cuenta-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}

	public function actionSelectConcepto(){
		header( 'Access-Control-Allow-Origin: *' );
		file_put_contents('/var/www/html/asw7/protected/runtime/log.txt',"Entra a selectConcept".PHP_EOL, FILE_APPEND);
		$id_format = $_POST['ExogenaColconCuenta']['id_formato'];
		$lista = ExogenaConcepto::model()->findAll('id_formato = :id_format', array(':id_format'=>$id_format));
		$lista = CHtml::listData($lista, 'id', 'nombre');

		foreach ($lista as $key => $value) {
			echo CHtml::tag('option',array('value'=>$key), CHtml::encode($value), true);
		}
	}
}

Never calls to controller function in the action change / Nunca llama la función del controlador en el change del primer dropdown

Can you help me please? / Podrían ayudarme por favor?

PS: I already set the enableAjaxValidation to false and it doesn’t work
PD: Ya modifiqué el enableAjaxValidation a false y tampoco funcionó