YII dataProvider relation CDbCriteria - php

Question

I have a problem regarding the use of CDbCriteria in a controller index action. I have 2 classes: event and attendee.
the class event has many attendee, and i want my event index action to render only the list of events of which the current loggedin user is an attendee...
$criteria = new CDbCriteria(array(
'order'=>'event_date desc',
'with' => array('attendees'=>array('alias'=>'attend')),
'condition'=>'attend.uid = ' . Yii::app()->user->id,
));
$dataProviderAtt=new CActiveDataProvider('Event',
array(
'criteria' => $criteria,
)
);
$this->render('index',array(
'dataProvider'=>$dataProviderAtt,
));
this does not work in DB with the message:
CDbCommand failed to execute the SQL statement: SQLSTATE[42000]: Syntax error or access violation: 1066 Not unique table/alias: 'user'
my relations in attendee class are set like this:
public function relations()
{
// NOTE: you may need to adjust the relation name and the related
// class name for the relations automatically generated below.
return array(
'user' => array(self::BELONGS_TO, 'YumProfile', 'uid', 'alias'=>'user'),
);
}
I tried to change the defaultscope in attendee model and define multiple aliases:
public function defaultScope()
{
static $counter = 0;
return array(
'with' => array('user'=>array('alias'=>'user'.($counter++))),
//'with' => 'user',
'order' => 'score DESC',
);
}
but it does not seem to fix the issue and I then have more errors. Is my criteria correctly set?
Thx guys for your help

Answer 1

you are looking for
'on' => 'attend.uid = ' . Yii::app()->user->id,
as in your relation to the user
function relations()
{
return array(
'user' => array(
self::BELONGS_TO,
'attendees',
'',
'on' => 'attendees.uid = ' . Yii::app()->user->id,
),
);
}