Question

I am doing a yii web application
i have a drop down list that should be dependent on another , i use ajax however it doesnt work.
ive seen the yii tutorial for dependent drop downs and searched everywhere.
http://www.yiiframework.com/wiki/24
this is my main drop down list:

<div class="row">
    <?php echo $form->labelEx($model, 'sourceID'); ?>
    <?php
    echo $form->dropDownList($model, 'sourceID', CHtml::listData(Sources::model()->findAll(), 'sourceID', 'name'), array('empty' => 'select source'), array(
        'ajax' => array(
            'type' => 'POST',
            'url' => CController::createUrl('reservations/atest'),
            'update' => '#meal'
        )
            )
    );
    ?>
    <?php echo $form->error($model, 'sourceID'); ?>
</div>    

this is the dependent drop down list :

<div  class="row">
    <?php echo $form->labelEx($model, 'meal'); ?>
    <?php echo $form->dropDownList($model, 'meal', array()); ?>
    <?php echo $form->error($model, 'meal'); ?>
</div>    

this is my controller action:

  public function actionAtest() {

    $data = Sources::model()->findAll();

    $data = CHtml::listData($data, 'sourceID', 'name');

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

also, i added the action to the access rules.
any help is appreciated ,
thank you in advance.

Answer 1

You placed the ajax option after the htmlOptions. Here is the modified code

<div class="row">
    <?php echo $form->labelEx($model, 'sourceID'); ?>
    <?php
    echo $form->dropDownList($model, 'sourceID', CHtml::listData(Sources::model()->findAll(), 'sourceID', 'name'), array('empty' => 'select source','ajax' => array(
            'type' => 'POST',
            'url' => CController::createUrl('reservations/atest'),
            'update' => '#meal'
       )
      )
    );
    ?>
    <?php echo $form->error($model, 'sourceID'); ?>
</div>   

And instead of using forms dropdownlist use CHtml::dropDownList for the dependent drop-down.

echo CHtml::dropDownList('meal','', array());

You can also use CActiveForm::dropDownList but in that case you have to use CHtml::resolveNameId in the update option of ajax