PHP Yii: how to row numbering CGridView if using sqlite database - php

Question

I want to show a filter-able and sort-able column of row number in CGridView, but what i have got is only an empty sort-able (clickable header) and filter-able (it has filtering text box up there) column.
In model (ActiveRecord) class i have added a new public attribute:
public $number;
in the rules() function i have added:
public function rules()
{
return array(
...
...
array('
...
...
number,
',
'safe',
'on'=>'search'
),
);
}
on the search() function, i have also add:
public function search()
{
$criteria=new CDbCriteria;
...
...
$number_select = '(
select count(*)
from tbl_mytable as k
where k.id <= t.id
)';
$criteria->select = array(
$number_select . ' as number',
't.*',
);
...
...
$criteria->compare($number_select, $this->number,true);
$sort = new CSort;
$sort->attributes = array(
'*',
...
...
'number'=>array(),
);
return new CActiveDataProvider($this, array(
'criteria'=>$criteria,
'sort'=>$sort,
));
}
I've successfully using this kind of method to add other columns.
With the lack of skill and knowledge of sqlite query, i am suspecting the cause of this problem is the query in the $criteria->select.
I hope someone would help me for solving this.

Answer 1

Try adding the property to CActiveRecord.attributeNames:
public function attributeNames()
{
return array_merge(parent::attributeNames(), array('number'));
}

Answer 2

after editing my question, i edited my code a fad that miraculously turn out to be the answer.
Just remove the table alias from the select statement
Original (not working) code:
$number_select = '(
select count(*)
from tbl_mytable as k
where k.id <= t.id
)';
The new (working) code after removing table alias:
$number_select = '(
select count(*)
from tbl_mytable
where tbl_mytable.id <= t.id
)';
While my question is about yii with sqlite database, but since this is quite standard query, i think this solution will also works for yii with mysql database