Link own queries symfony2 repository - symfony

Question

I would like to factorize some code in my models repositories.
A really basic example
public function getPlayers()
{
$qb = $this->createQueryBuilder('p')
->innerJoin(...) // whatever the request
->where(...)
// I want to factorize this line because a lot of function use it
->andWhere('p.active = true');
return (...);
}
So I create a private function
private function getActivePlayer() {
return $this->andWhere('p.active = true');
}
And I would like to use it like that in any function
$qb = $this->createQueryBuilder('p')
->innerJoin(...)
->where(...)
->getActivePlayer()
But of course I have this error
Attempted to call method "getActivePlayer" on class "Doctrine\ORM\QueryBuilder"
It's possible to achieve this kind of factorization? What will be the syntaxe?
Thanks

Answer 1

You can try something like:
public function getPlayers()
{
$qb = $this->createQueryBuilder('p')
->innerJoin(...)
->where(...);
$qb = $this->getPlayerType($qb);
}
private function getActivePlayer(QueryBuilder $qb)
{
return $qb->andWhere('p.active = true');
}

Answer 2

Using the -> operator in the context of a QueryBuilder object will only call methods within the QueryBuilder class. You must define your own class that extends the QueryBuilder. Something like:
class MyQueryBuilder extends \Doctrine\ORM\QueryBuilder {
public function getActivePlayer() {
return $this->andWhere('p.active = true');
}
}
Then implement that builder instead of the default Query Builder:
$qb = new MyQueryBuilder();
$qb->select('p')
->from(...)
->innerJoin(...)
->where(...)
->getActivePlayer()
// ...
Note that the above code is just simple demonstration to show you what length of effort it takes to achieve exactly what you want to do - in actual practice, you'll need to do more than this.
You are best off starting with a basic QueryBuilder in a particular private method then amending it in your public getters:
private function getPlayerQueryBuilder()
{
$qb = $this->createQueryBuilder('p')
->innerJoin(...) // whatever the request
->where(...)
return $qb;
}
public function getActivePlayers() {
$result = $this->getPlayerQueryBuilder()
->andWhere('p.active = true')
->getQuery()->getResult();
return $result;
}
public function getAllPlayers() {
$result = $this->getPlayerQueryBuilder()
->getQuery()->getResult();
return $result;
}