How should I display the content of the database in CActiveForm? - yii

Question

Now I am building the view of a website and I use the widget CActiveForm as the view. However, I need to display some of the contents of the database, for example, the result of a SQL query. Then what should I do to accomplish the goal? Thank you!
Some of my code is provided below:
<div class="form">
<?php
$form=$this->beginWidget('CActiveForm', array(
'id'=>'login-form',
'enableClientValidation'=>true,
'clientOptions'=>array(
'validateOnSubmit'=>true,
),
));
?>
<p class="note">Fields with <span class="required">*</span> are required.</p>
<div class="row buttons">
<?php echo CHtml::submitButton('Login'); ?>
</div>
<div class="row radiobuttons">
<?php echo CHtml::radioButtonList(
$Paper,
'Q1No',
array('A'=>'A','B'=>'B','C'=>'C','D'=>'D'),
array('template'=>'<span class="radio">{input}{label}</span>','separator'=>''));
?>
</div>
<?php $this->endWidget(); ?>
</div><!-- form -->
This is my code. And I need to add some contents of the database in the form. The content is listed below:
public function actionTaketest()
{
// Get the ID of the test paper from the URL ---ztm
if(isset($_GET['paperid']))
{
$paperid=(int)$_GET['paperid'];
$dsn = 'mysql:host=localhost;dbname=mydatabase';
$username = 'root';
$password = '000000';
$connection=new CDbConnection($dsn,$username,$password);
// establish connection. You may try...catch possible exceptions
$connection->active=true;
$rawData = Yii::app()->db->createCommand()
->select('*')
->from('Paper, Question') array(':PaperNo'=>$paperid))
->queryAll();
$dataProvider=new CArrayDataProvider($rawData, array(
'id'=>'PaperNo',
));
$connection->active=false; // close connection
$model=new LoginForm;
$this->render('form',array('model'=>$model, 'dataProvider'=>$dataProvider));
}
else
{
// Deny illegal access to the page ---ztm
throw new CHttpException(404,'invalid request');
}
}
This code are in the controller.

Answer 1

Your code is too messy, and looks invalid in some places. First of all you don't need to create CDbConnection in controller, you can specify credentials in config. To read data from database you can use ActiveRecord:
$paper = Paper::model()->findByAttributes(array('PaperNo' => $paperid));
And then in your html:
echo CHtml::activeRadioButtonList(
$paper,
'Q1No',
array('A'=>'A','B'=>'B','C'=>'C','D'=>'D'),
array('template'=>'<span class="radio">{input}{label}</span>','separator'=>'')
);
I hope it helps a little bit.