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POSymfony2 persist correlated objects
 

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    <p>This my issue: <strong>Entity AddressBook</strong> <em>1-N</em> <strong>Entity Number</strong></p> <p>The controller displays the edit form with AddressBook and its number, but when I save the form, I get this error: <strong>Fatal error: Call to a member function setTipo() on a non-object</strong> </p> <p>Strangely, however, the data is saved correctly</p> <p>This my code:</p> <pre><code> /** * Modifica dati Anagrafica * @Route("/contatto/{id}/modifica", name="_anagrafica_modifica") * @Template() */ public function modificaAction($id) { $em = $this-&gt;getDoctrine()-&gt;getManager(); $anagrafica = $em-&gt;getRepository('MercurioInterfaceBundle:Anagrafica')-&gt;find($id); if (!$anagrafica) { throw $this-&gt;createNotFoundException('No anagrafica found for id '.$id); } $form = $this-&gt;createForm(new \Mercurio\InterfaceBundle\Form\Anagrafica\FormAnagrafica(), $anagrafica); $request = $this-&gt;getRequest(); if ($request-&gt;getMethod() == 'POST') { $form-&gt;bind($request); if ($form-&gt;isValid()) { $chiave = $request-&gt;request-&gt;get('anagrafica'); $em = $this-&gt;getDoctrine()-&gt;getManager(); $anagrafica = $em-&gt;getRepository('MercurioInterfaceBundle:Anagrafica')-&gt;find($id); $anagrafica-&gt;setNominativo($chiave['nominativo']); $anagrafica-&gt;setIndirizzo($chiave['indirizzo']); $anagrafica-&gt;setCap($chiave['cap']); $anagrafica-&gt;setCitta($chiave['citta']); $anagrafica-&gt;setNote($chiave['note']); $em-&gt;flush(); $dettaglio = $em-&gt;getRepository('MercurioInterfaceBundle:AnagDettaglio')-&gt;findBy(array('anagrafica_id' =&gt; $id,)); foreach ($chiave['anag_dettagli'] as $d) { $dettaglio-&gt;setTipo($d['tipo']); $dettaglio-&gt;setValore($d['valore']); $dettaglio-&gt;setRiferimento($d['riferimento']); } $em-&gt;flush(); return $this-&gt;redirect($this-&gt;generateUrl('_anagrafica_contatto', array('id' =&gt; $id))); } } return array( 'form' =&gt; $form-&gt;createView(), 'id' =&gt; $id ); } </code></pre>
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    1. COPost your entities please
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    2. COYour problem is that this line `$dettaglio = $em->getRepository('MercurioInterfaceBundle:AnagDettaglio')->findBy(array('anagrafica_id' => $id,));` is not returning an object - its probably returning nothing - check your entities to ensure that the field exists and check the database to ensure the record your searching for exists
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    3. COyeah basically it should be $dettaglio = $em->getRepository('MercurioInterfaceBundle:AnagDettaglio')->findOneBy(array('anagrafica_id' => $id,)) otherwise it will return Collection not single object.
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