Searching criteria in Mongo db documents with Yii - php

Question

How can I create a search form/criteria for "one-to many" relations: let's say "select all teams with crowd > 10.000".
I'm using MongoRecord extension (http://www.yiiframework.com/extension/mongorecord/) as a basic active record for MongoDb.
I created a GridView with Yii based on a collection from a mongo db (it works for me).
One of my document`s collection has a structure like this:
{
_id":1,
"teamId":2453,
"teamName":"Team A",
"competition":["Competition A","Competition B"],
"matches":
[
{
"_id":147852,
"crowd":10234,
"yellowCards":2,
"scorers" [{....}]
....
}
]
...
}
My documents:
$teams = MongoTeam::model()->findAll();
My dataProvider is:
$dataProvider=new CArrayDataProvider($teams, array(
'id'=>'_id',
'sort'=>array(
'attributes'=>array(
'_id', 'teamId', 'teamName', 'matches', ...
),
),
'pagination'=>array(
'pageSize'=>20,
),
));
$this->render('index', array('dataProvider'=>$dataProvider));
And in the view I have something like this:
$this->widget('zii.widgets.grid.CGridView', array(
'dataProvider'=>$dataProvider,
'columns'=>array(
array(
'name' => 'Team ID',
'type' => 'raw',
'value' => 'CHtml::encode($data->teamID)'
),
array(
'name' => 'Team Name',
'type' => 'raw',
'value' => 'CHtml::encode($data->teamName)'
),
...
But I'm not able to create filters with criteria for subdocuments (my case: "matches"). I don't want to use any other mongoDB extension/module etc.
Thanks and sorry for my bad english.

Answer 1

$query=array(
'matches.crowd'=>array('$gt'=>10000),
'matches.$'=>1
);
$teams = MongoTeam::model()->findAll($query);
You can use like this. But you must not use a data provider like that. Because it will generate too much rows into the $teams var. You must use criteria for data providers. I am doing that with YiiMongoDbSuite it has EMongoCriteria and EMongoDataProvider classes to accomplish that.