php - SS_HTTPRequest could not be converted to a string -


i have silverstripe (3.4) page form work if didn't have dataobject in it.

public function antwortform($id) {      $nummer = vortest_fragen::get()->byid($id);     if ($nummer) {         $art=$nummer->art;     }     if ($art == 'normal') {         $fields = new fieldlist(             textareafield::create('antwort'),             hiddenfield::create('id', 'id', $id),             hiddenfield::create('vortestid', 'vortestid', $this->request->param('id')),             hiddenfield::create('aktion', 'aktion', $this->request->param('action'))          );     } else {         $optionen = explode(';', $nummer->optionen);         $a = 'a';          ( $i = 0 ; $i < count ($optionen); $i++) {             $op[$a] ='<div style="width:25px;display:inline;">' . $a . ')</div> ' . $optionen[$i];             $a++;         }          $fields = new fieldlist(             checkboxsetfield::create('antwort', 'antwort', $op),             hiddenfield::create('id', 'id', $id),             hiddenfield::create('vortestid', 'vortestid', $this->request->param('id')),             hiddenfield::create('aktion', 'aktion',$this->request->param('action')),             hiddenfield::create('art', 'art', $nummer->art)         );     }     $actions = new fieldlist(         formaction::create('antworteintragen', 'eintragen')     );      $form = new form($this, 'antwortform', $fields, $actions);     return $form; }  function antworteintragen($data, $form) {     $antwort = vortest_antwort::get()->filter(array('frageid' => $data['id'], 'schreiberid' => member::currentuserid()));     foreach($antwort $item) {         $item->delete();     }      foreach ($data['antwort'] $antwort) {         $ant .= $antwort . ',';     }     $antwort = new vortest_antwort();      if ($data['antwort']) {         $form->saveinto($antwort);         if ($data['art'] == 'mechanics') {             $antwort->antwort = $ant;         }         $antwort->schreiberid = member::currentuserid();         $antwort->frageid = $data['id'];         $antwort->write();     }     $vid = $data['vortestid'];     if ($data['aktion'] == 'allefragen') {         $this->redirect('/vortest/allefragen/' . $vid . '#' . $data['fragenr']);     } elseif ($data['aktion'] == 'einzelfrage') {         $this->redirect('/vortest/einzelfrage/' . $vid);     } else {         $this->redirect('/vortest/test/' . $vid.'#' . $data['fragenr']);     } }

it works when change $id number in line $nummer = vortest_fragen::get()->byid($id);

when don't change following error:

[recoverable error] object of class ss_httprequest not converted string

how fix problem?

althought not documented, silverstripe secretly passes request argument , form methods on controller. $id argument not think is, find ss_httprequest object silverstripe has passed (without realising).

to fix this, change first line:

public function antwortform($id) {

to:

public function antwortform($request, $id) {

and make sure update anywhere call method :-)


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