Symfony2 passed argument is null

Question

I'm building a CRM system and I faced a weird problem I'm unable to solve. When I try to create a new CustomerCase entity, I want to assign a CaseState entity for it, so this is what I do in the createAction of CustomerCaseController.php:

    $caseStateId = $request->request->get('caseState_id');
    $caseState = $this->getDoctrine()->getManager()->getRepository('HSWAshaBundle:CaseState')->findOneById($caseStateId);
    $entity  = new CustomerCase();
    $entity->setCaseState($caseState);
...... etc.....

Everything works just fine until the setCaseState method. After running setCaseState, I get the following error:

Catchable Fatal Error: Argument 1 passed to HSW\AshaBundle\Entity\CustomerCase::setCaseState() must be an instance of HSW\AshaBundle\Entity\CaseState, null given, called in /home/webuser/Symfony/vendor/symfony/symfony/src/Symfony/Component/Form/Util/PropertyPath.php on line 538 and defined in /home/webuser/Symfony/src/HSW/AshaBundle/Entity/CustomerCase.php line 843

The weird part is that $caseState really is a CaseState object (because for example $caseState->getName() works and gives me the correct name for the selected CaseState). For some mind blowing reason it just turns null when I use the setCaseState method. If I do $entity->setCaseState($customerStateObject->getId()), I get the same error message, but this time null changes to integer.

The CustomerCase has a manyToOne relationship with CaseState.

This works just fine if I use the formBuilder's add() method and skip all this manual work, but since I'm using a very specific auto-populating jQuery dropdown for selecting the CaseState from a nested tree structure, I had to manually add the dropdown and read it with $request->request->get().

I've been fighting with this part for almost three days now and would greatly appreciate every help I can get with this!

Does $caseStateId have the proper value ? did you try casting it to (int) ? — topaz1008
– topaz1008, Commented Dec 18, 2012 at 19:19

user1903831 · Accepted Answer · 2012-12-18 19:31:20Z

3

Finally I got it to work! The reason was $request was missing some parameters because the twig template was missing form_rest(form). After adding that, everything started to work. Thank you!

answered Dec 18, 2012 at 19:31

user1903831

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