CakePHP paginate conditions in derived fields - php

Question

i would like to paginate a list of games, where the sport is a chosen sport.
the relatition is as followed:
Game BelongsTo Competition BelongsTo Team BelongsTo sport
What i would like to do is show all games where the teams sport_id = 1.
The following doesn't work:
$this->paginate = array('limit' => 30, 'page' => 1,
'conditions' => array('Competition.Team.sport_id' => '1'),
'contain' => array('Competition', 'Competition.Team',
'Gamefield', 'Changingroom', 'ChangingroomAway', 'Gametype'),
'order'=>array('game_date'=>'asc'),
);
Can anyone help me with this one?

Answer 1

I've found my solution:
var $paginate=array(
'Game'=>
array(
'joins'=>array(
array('table'=>'competitions',
'alias'=>'Competition2',
'type'=>'left',
'conditions'=>array('Game.competition_id=Competition2.competition_id')
),
array('table'=>'teams',
'alias'=>'Team2',
'type'=>'left',
'conditions'=>array('Competition2.team_id=Team2.team_id')
),
),
'order'=>array('game_date'=>'asc'),
'contains'=>array('Competition2'=>array('Team2'))
));
function index() {
$datum = date('Y-m-d H:m');
$this->Game->recursive = 0;
$scope=array('OR' => array(array('Team2.sport_id' => 2), array('Team2.sport_id' =>3)), 'Game.game_date >' => $datum);
// Configure::write('debug',2);
$this->set('games', $this->paginate(null,$scope));
}
Thanks to TehThreag for helping me

Answer 2

Containable doesn't create any joins unless the relation would have been joined anyways, despite using Containable.
This means that for habtm, if you want a join you have to do as Michael did and specify them.
Also, doing a couple of joins should be faster with logical indexes than doing a habtm with Containable anyways, as the results from a contain for the same data as above would require an in ( id1,id2,...id# ) condition and a number of queries from there to fetch the individual related records.
The joins solution gets the data back in one db query.