Symfony DIC and Parent Services not working - zend-framework

Question

I'm integrating Symfony DIC in a zend framework application, that's going fine except for parent services.
In my DIC config I have a parent service PC_Service which will be extended by all my services.
The problem is that the entity manager is not available (NULL) in the services that extend PC_Service. When I inject the entitymanager via service.stats the entitymanger is set correctly.
...
<service id="pc.service" class="PC_Service" abstract="true">
<call method="setEntityManager">
<argument type="service" id="doctrine.entitymanager" />
</call>
</service>
...
<service id="service.stats" class="Application_Service_Stats" parent="pc.service" />
...
PC_Service
abstract class PC_Service
{
protected $_em;
public function setEntityManager($entityManager)
{
$this->_em = $entityManager;
}
}
Application_Service_Stats
class Application_Service_Stats extends PC_Service
{
... $this->_em should be set here.
}
I hope someone can tell me what I'm doing wrong.

Answer 1

Don't know if it's a typo but it should be doctrine.orm.default_entity_manager or doctrine.orm.entity_manager (alias of the previuos):
<service id="pc.service" class="PC_Service" abstract="true">
<call method="setEntityManager">
<argument type="service" id="doctrine.orm.default_entity_manager" />
</call>
</service>

Answer 2

The solution is to compile the service container near the end of the ZF bootstrap. This process has a step called ResolveDefinitionTemplatesPass which patches in the calls from parent services.
This is typically done by the Symfony Kernel, but of course it isn't present in a ZF integration.
protected function _initServiceContainerCompilation()
{
// Wait for the SC to get built
$this->bootstrap('Services');
// Doctrine modifies the SC, so we need to wait for it also
$this->bootstrap('Doctrine');
// Compiling the SC allows "ResolveDefinitionTemplatesPass" to run,
// allowing services to inherit method calls from parents
$sc = $this->getResource('Services');
$sc->compile();
}