Hi all,
I was wondering how I go about sorting a CGridView on a sum relation defined in the model?
Basically I have a table for users and a table for items. A user can have as many ‘items’ as they like, so my users model defines the number of items they have as:
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(
'itemcount'=>array(self::STAT, 'Item', 'user_id'),
);
}
So I can call $model->itemcount and it’ll tell me how many items the user loaded into $model has. In my view I now have a table listing all my users, and I want to sort by this value:
$this->widget('zii.widgets.grid.CGridView', array(
...
'columns'=>array(
'username',
array(
'name'=>'itemcount',
'header'=>'Items',
'value'=> '$data->itemcount',
),
),
...
));
I tried adding a CSort to the CActiveDataProvider like so:
$sort = new CSort();
$sort->attributes = array(
'*',
'itemcount' => array(
'asc'=>'<img src='http://www.yiiframework.com/forum/public/style_emoticons/default/huh.gif' class='bbc_emoticon' alt='???' /> ASC',
'desc'=>'<img src='http://www.yiiframework.com/forum/public/style_emoticons/default/huh.gif' class='bbc_emoticon' alt='???' /> DESC',
),
);
$users=new CActiveDataProvider('User', array(
'pagination'=>array(
'pageSize'=>25,
),
'sort'=>$sort,
));
This allows the ‘itemcount’ colum to be clickable for sorting, but I can’t work out what I put in the CSort to allow it to actually work?
Any help would be greatly appreciated!
Thanks,
Stu
