php - Symfony Form: OneToMany and CollectionType Field -

i got stucked building form symfony 3.

i defined entity 'news' containing attribute 'newsarticle', has onetomany relation entity 'newsarticle', holding translations of attributes 'headline', 'subheader , 'bodytext'. goal provide form holds on 1 hand fields attributes of 'news' , on other hand fields create 'newsarticle' entry default language.

entity news (excerpt):

/**  * @orm\entity  * @orm\table(name="news")  */ class news {     /**      * @orm\column(type="integer")      * @orm\id      * @orm\generatedvalue(strategy="auto")      */     private $id;      /**      * @orm\onetomany(targetentity="newsarticle", mappedby="news", cascade={"persist", "remove"})      */     private $newsarticle;      /**      * constructor      */     public function __construct()     {         $this->newsarticle = new \doctrine\common\collections\arraycollection();     } } 

entity newsarticle (excerpt):

/**  * @orm\entity  * @orm\table(name="news_article")  */ class newsarticle {      /**      * @orm\column(type="integer")      * @orm\id      * @orm\generatedvalue(strategy="auto")      */     private $id;      /**      * @orm\manytoone(targetentity="news")      * @orm\joincolumn(name="news_id", referencedcolumnname="id")      */     private $news;      /**      * @orm\column(type="string", length=150, unique=false, nullable=false)      * @assert\notblank()      */     private $headline;      /**      * @orm\column(type="string", length=150, nullable=true)      */     private $subheadline;      /**      * @orm\column(type="string", length=65536, nullable=false)      * @assert\notblank()      */     private $bodytext;      /**      * @orm\manytoone(targetentity="language")      * @orm\joincolumn(name="language_id", referencedcolumnname="id")      */     private $languageid; } 

the controller (excerpt):

public function addaction(request $request) {     $lang = $this->getdoctrine()         ->getrepository('bundle:language')         ->findoneby(array('deleted' => 0, 'fallback' => 1));      $news = new news();     //$news->newsarticle->setlanguageid($lang);      $form = $this->createform(newstype::class, $news);      $form->handlerequest($request);      if ($form->issubmitted() && $form->isvalid()) {          $em = $this->getdoctrine()->getmanager();         $em->persist($news);         $em->flush();     }      return $this->render('bundle:news:add.html.twig', array(         'form' => $form->createview(),         'news' => $news,     )); } 

twig template (excerpt):

{{ form_start(form) }}     <div class="form-group">         {{ form_label(form.headline) }}         <div class="col-sm-8 col-md-6">             {{ form_errors(form.headline) }}             {{ form_widget(form.headline) }}         </div>     </div>     <div class="form-group">         {{ form_label(form.subheadline) }}         <div class="col-sm-8 col-md-6">             {{ form_errors(form.subheadline) }}             {{ form_widget(form.subheadline) }}         </div>     </div>     <div class="form-group">         {{ form_label(form.bodytext) }}         <div class="col-sm-8 col-md-6">             {{ form_errors(form.bodytext) }}             {{ form_widget(form.bodytext) }}         </div>     </div> {{ form_end(form) }} 

newstype (excerpt):

class newstype extends abstracttype {     public function buildform(formbuilderinterface $builder, array $options) {         $builder             ->add('newsarticle', collectiontype::class, array(                 'entry_type'   => newsarticletype::class,                 'allow_add'   => true,                 'allow_delete'   => true,             ))     }      public function configureoptions(optionsresolver $resolver) {         $resolver->setdefaults(array(             'data_class' => 'bundle\entity\news',         ));     } } 

newsarticletype (excerpt):

class newsarticletype extends abstracttype {     public function buildform(formbuilderinterface $builder, array $options) {         $builder             ->add('headline', texttype::class, array(                 'required' => false,             ))             ->add('subheadline', texttype::class, array(                 'required' => false,             ))             ->add('bodytext', ckeditortype::class, array(                 'required' => false,             ))         ;     }      public function configureoptions(optionsresolver $resolver) {         $resolver->setdefaults(array(             'data_class' => 'bundle\entity\newsarticle',         ));     } } 

unfortunately error message...

neither property "headline" nor 1 of methods "headline()", "getheadline()"/"isheadline()" or "__call()" exist , have public access in class "symfony\component\form\formview" in bundle:_partials:form/news.html.twig @ line 27

... , have no idea, how access attributes of related entity? hints?

edit #1:

the complete 'child'-entity including getters/ setters:

/**  * @orm\entity  * @orm\table(name="news_article")  */ class newsarticle {      /**      * @orm\column(type="integer")      * @orm\id      * @orm\generatedvalue(strategy="auto")      */     private $id;      /**      * @orm\manytoone(targetentity="news", inversedby="newsarticle")      * @orm\joincolumn(name="news_id", referencedcolumnname="id")      */     private $news;      /**      * @orm\column(type="string", length=150, unique=false, nullable=false)      * @assert\notblank()      */     private $headline;      /**      * @orm\column(type="string", length=150, nullable=true)      */     private $subheadline;      /**      * @orm\column(type="string", length=65536, nullable=false)      * @assert\notblank()      */     private $bodytext;      /**      * @orm\manytoone(targetentity="language")      * @orm\joincolumn(name="language_id", referencedcolumnname="id")      */     private $languageid;        /**      * id      *      * @return integer      */     public function getid()     {         return $this->id;     }      /**      * set headline      *      * @param string $headline      *      * @return newsarticle      */     public function setheadline($headline)     {         $this->headline = $headline;          return $this;     }      /**      * headline      *      * @return string      */     public function getheadline()     {         return $this->headline;     }      /**      * set subheadline      *      * @param string $subheadline      *      * @return newsarticle      */     public function setsubheadline($subheadline)     {         $this->subheadline = $subheadline;          return $this;     }      /**      * subheadline      *      * @return string      */     public function getsubheadline()     {         return $this->subheadline;     }      /**      * set bodytext      *      * @param string $bodytext      *      * @return newsarticle      */     public function setbodytext($bodytext)     {         $this->bodytext = $bodytext;          return $this;     }      /**      * bodytext      *      * @return string      */     public function getbodytext()     {         return $this->bodytext;     }      /**      * set news      *      * @param \bundle\entity\news $news      *      * @return newsarticle      */     public function setnews(\bundle\entity\news $news = null)     {         $this->news = $news;          return $this;     }      /**      * news      *      * @return \bundle\entity\news      */     public function getnews()     {         return $this->news;     }      /**      * set languageid      *      * @param \bundle\entity\language $languageid      *      * @return newsarticle      */     public function setlanguageid(\bundle\entity\language $languageid = null)     {         $this->languageid = $languageid;          return $this;     }      /**      * languageid      *      * @return \bundle\entity\language      */     public function getlanguageid()     {         return $this->languageid;     } } 

the getters , setters attributes exist, wonder why error message misses method getheadline() instead of getheadline()? be, problem wrong syntax in twig: {{ form_errors(form.headline) }} ? i've tried {{ form_errors(form.newsarticle.headline) }} too, error message remains same.

any hints, please?

i think problem setters getters

as try command :

php bin/console doctrine:generate:entities youbundle 

for generate getter/setter or write it

and forgot inversedby in entity newsacticle

like :

    /**      * @orm\manytoone(targetentity="news", inversedby="newsarticle" )      * @orm\joincolumn(name="news_id", referencedcolumnname="id")      */     private $news;