symfony - Symfony2 display related entity property in Twig template -

let's have product class , category class. each product has 1 category. on list of products (generated calling php app/console doctrine:generate:crud), display category name each product. i've tried far doesn't work.

i'm using knppaginatorbundle (don't know if makes difference or not).

here's code inside controller:

// productcontroller.php  public function indexaction(request $request) {     $em = $this->getdoctrine()->getmanager();      $query = $em->createquery(         'select p         mymainbundle:product p         order p.name'     );      $paginator = $this->get('knp_paginator');     $pagination = $paginator->paginate($query, $request->query->get('page', 1), 10);      return $this->render('mymainbundle:product:index.html.twig', array(         'pagination' => $pagination,     )); } 

here's code inside template:

{# index.html.twig #} {% extends 'mymainbundle::layout.html.twig' %}  {% block body -%}     <table>         <thead>             <tr>                 <th>name</th>                 <th>category</th>             </tr>         </thead>         <tbody>         {% entity in pagination %}             <tr>                 <td>{{ entity.name }}</td>                 <td>{{ entity.category }}</td>             </tr>         {% endfor %}         </tbody>     </table>     {{ knp_pagination_render(pagination) }} {% endblock %} 

i've added __tostring() method category class:

public function __tostring() {     return $this->getname(); } 

but following error:

method "category " object "my\mainbundle\entity\product" not exist in mymainbundle:product:index.html.twig @ line 16

i've tried adding left join p.category category query, no avail.

i've tried replacing {{ entity.category }} {{ entity.category.name }}, in case get:

method "name " object "proxies__cg__\my\mainbundle\entity\category" not exist in mymainbundle:product:index.html.twig @ line 16

i've tried replacing {{ entity.category }} {{ entity.getcategory }} in case get:

method "getcategory " object "my\mainbundle\entity\product" not exist in mymainbundle:product:index.html.twig @ line 16

i've tried replacing {{ entity.category }} {{ entity.getcategory() }} in case get:

unexpected token "name" of value " " ("end of print statement" expected) in mymainbundle:product:index.html.twig @ line 16

how supposed display category name?

i noticed in both error messages:

method "category " object "my\mainbundle\entity\product" not exist in mymainbundle:product:index.html.twig @ line 16

and

method "name " object "proxies_cg_\my\mainbundle\entity\category" not exist in mymainbundle:product:index.html.twig @ line 16

you have space between method name , following ".

this happened me before when typing code quickly: pressed key make twig }} before typing space after property name, ended having non-breaking space between property , }}, twig doesn't , takes part of property name.

check if don't have non-breaking space in code before }}.