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

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();
}