Why do I get a "Class 'Yii' not found" error? - php

Question

With YII, I'm trying to make a query from a page called from ajax
echo CHtml::ajaxLink(
'Test request',
array('ajax/z1_gerar_excel.php',
'type'=>'POST',
'data' => array('sql' => $sql)
),
array('update'=>'#req_res'
)
);
?>
<div id="req_res">...</div>
and here is the AJAX page:
$sql = $_REQUEST['data']['sql'];
//echo $sql;
$connection=Yii::app()->db;
$command = $connection->createCommand($sql);
$dataReader = $command->query();
$cont_l = 1;
while(($row = $dataReader->read()) !== false)
{
echo "<br>Linha $cont_l: ";
print_r($row);
$cont_l++;
}// WHILE EOF
$connection->active = false;
and I have the following problem, the YII class is not initialized in the page called from ajax, so I get the following result:
Fatal error: Class 'Yii' not found in D:\Programas\Xampp\Instalado2\htdocs\atayo-teste\ajax\z1_gerar_excel.php on line 4
I've only been using YII for one week. How can I resolve this error?
UPDATE:
So i tried change it to a more YII way, i followed the example from http://lostmahbles.com/simple-yii-ajaxlink/ and add this to my view(z1_sql.php):
echo CHtml::ajaxLink(
"Link Text",
Yii::app()->createUrl( 'application/controllers/RelatorioController/ajaxRequest' ),
array( // ajaxOptions
'type' => 'POST',
'beforeSend' => "function( request )
{
// Set up any pre-sending stuff like initializing progress indicators
}",
'success' => "function( data )
{
// handle return data
alert( data );
}",
'data' => array( 'val1' => '1', 'val2' => '2' )
),
array( //htmlOptions
'href' => Yii::app()->createUrl( 'application/controllers/RelatorioController/ajaxRequest' ),
'class' => 'actionAjaxRequest'
)
);
and this to my controller(RelatorioController.php):
public function accessRules()
{
return array(
array('allow',
'actions'=>array('ajaxrequest'),
'users'=>array('#'),
),
array('deny', // deny all users
'users'=>array('*'),
),
);
}
public function actionAjaxRequest()
{
$val1 = $_POST['val1'];
$val2 = $_POST['val2'];
echo "some sort of response";
Yii::app()->end();
}
but i`m getting a 404 ERROR. And again, really noobie into YII, so anything at all helps...

Answer 1

You're not requesting a Yii php function/page.
Change your code to something like this: (not tested)
<?php
echo ajaxLink('text', array('ajax/z1_gerar_excel'), array(
'type' =>'POST',
'data' => array('sql' => $sql),
), array(
'update'=>'#req_res' // this array is for htmlOptions, so I think you want this parameter in the array with the ajax options
));
?>
Make sure you have an ajax controller with a function z1_gerar_excel.
For more information about the parameters of ajaxLink take a look at:
http://www.yiiframework.com/doc/api/1.1/CHtml#ajaxLink-detail