I need to understand how to build Ajax request in Yii. I searched on the Yii website and found the following article :
http://www.yiiframework.com/wiki/24/
I wrote the code and I tested it on my localhost ? but for some reason it did not work.
For a first attempt I only wanted to do something simple. I wanted to print the result of another action on my page by using Ajax. The text that I want to be displayed is ‘Hi’.
This is how mu code looks like for that action:
view/index
<?php
/* @var $this CurrentController */
$this->breadcrumbs=array(
'Current'=>array('/current'),
'index',
);
?>
<div class="form">
<?php $form=$this->beginWidget('CActiveForm', array(
'id'=>'users-index-form',
'enableAjaxValidation'=>true,
)); ?>
<?php
echo CHtml::dropDownList('country_id','', array(1=>'USA',2=>'France',3=>'Japan'),
array(
'ajax' => array(
'type'=>'POST', //request type
'url'=>CController::createUrl('currentController/dynamiccities'), //url to call.
//Style: CController::createUrl('currentController/methodToCall')
'update'=>'#city_id', //selector to update
//'data'=>'js:javascript statement'
//leave out the data key to pass all form values through
)));
//empty since it will be filled by the other dropdown
echo CHtml::dropDownList('city_id','', array());
?>
<?php $this->endWidget(); ?>
</div><!-- form -->
Controller
<?php
class CurrentController extends Controller
{
public function accessRules()
{
return array(
array('allow', // allow authenticated user to perform 'create' and 'update' actions
'actions'=>array('create','update','dynamiccities'),
'users'=>array('@'),
),
);
}
public $country_id;
public function actionIndex()
{
$this->render('index');
}
public function actionDynamiccities() /// Called Ajax
{
echo CHtml::tag('option',
array('value'=>'2'),CHtml::encode('Text'),true);
}
}
Unfortunately I’m not getting the desired result. What I get is:
[list=1][]drowpdown list contains country array.[]another drowpdown list but empty ?![/list] How should I fix my example code so it would work? Can anyone see what I am doing wrong?
Thanks in advance