How to show categories in a treeview in Yii - yii

Question

I have a category model with this structure:
id,name,parent_id
I want to display categories in a treeview in Yii. As I found there is a widget called 'CTreeView' but I cannot find an clear example how to use it.
Pleas help me.

Answer 1

Yes, there is not much tour for CTreeView. But You can look here
http://www.yiiframework.com/wiki/?tag=ctreeview
Generating tree from database in Yii
http://www.yiiplayground.com/index.php?r=UiModule/ui_other/treeView

Answer 2

1. Download Extension
Download AIOTree
2. Extract it & put in your extension directory of yii project(extension/AIOTree/your extract files)
3. Now add this code at any where you want
<?php
$data=array(
'1'=>array('parentid'=>'','text'=>'One'),
'2'=>array('parentid'=>'','text'=>'Two'),
'3'=>array('parentid'=>'','text'=>'Three'),
'11'=>array('parentid'=>'1','text'=>'One-One'),
'12'=>array('parentid'=>'1','text'=>'One-Two'),
);
// AIOTree
Yii::import("application.extensions.AIOTree.*");
$this->Widget('AIOTree',array(
'data'=>$data,
));
?>

Answer 3

You can create array with your data from database and use it in CTreeView widget
// Your array with data
$data = array(
array(
'text' => 'Node 1',
'expanded' => true, // expanded branch or not (true by default)
'children' => array(
array('text' => 'Node 1.1'),
array('text' => 'Node 1.),
array('text' => 'Node 1.3')
)
),
);
// In your view call widget
$this->widget('CTreeView', array('data' => $data));
See more widget capability in offical documentatio: (http://www.yiiframework.com/doc/api/1.1/CTreeView)