Question

I’m working on signup form and I have 2 steps to user register in some website, so step 1 is a create action and step 2 is update action on profile controller.

so my problem is how can preserve the selected country and city on validation error but it’s already ?! check the image

view:

<div class="row">


        <?php echo $form->labelEx($model,'countryId'); ?>
        <?php echo $form->dropDownList($model, 'countryId',
                CHtml::listData(SysCountry::model()->findAll(), 'id', 'name'),
                array(
                    'empty'=>'Select country',
                    'ajax' => array(
                    'type'=>'POST', //request type
                    'url'=>CController::createUrl('profile/dynamiccity'), //url to call.
                    //Style: CController::createUrl('currentController/methodToCall')
                    'update'=>'#Profile_cityId', //selector to update
                    //'data'=>'js:javascript statement' 
                    //leave out the data key to pass all form values through
                    )));

        ?>
        <?php echo $form->error($model,'countryId'); ?> 
</div>


<div class="row">
        <?php echo $form->labelEx($model,'cityId'); ?>
        <?php echo $form->dropDownList($model, 'cityId', array('empty'=>'Please select country first')
        ); ?>
        <?php echo $form->error($model,'cityId'); ?> 
    </div>

Answer 1

Check this, to update the second drop down you need to use

'update'=>'#'.CHtml::activeId($model,'tracanton'),

echo CActiveForm::dropDownList
                     (
                        $model,'traprovincia',
                        CHtml::listData
                        ( 
                            CatUbicacionGeografica::model()->findAll('cat_ubigeo_nivel=? ORDER BY cat_ubigeo_descripcion', array('2') ), 
                            'cat_ubigeo_codigo', 'cat_ubigeo_descripcion'
                        ), 
                         array(
                            'ajax'=>array(
                                'type' => 'POST',
                                'url' => CController::createUrl('tramite/updatecanton'),
                                'data'=>array('padre'=>'js:this.value'), 
                                'update'=>'#'.CHtml::activeId($model,'tracanton'),
                                ),
                             'prompt' => '( Seleccione Provincia )',
                             'style' => "width: 300px;",
                            // 'onchange'=>'js:$("#tracanton").focus()',
                        )    
                     );