NickName:Erica Ackerman Ask DateTime:2013-09-27T08:21:58

Symfony/Twig can't extend a template when displaying a grid with APYDataGridBundle

I have a base.html.twig template that I have successfully extended in an index.html.twig file, which I take to mean that the base.html.twig file is well formed and being called correctly (this is my second day with Symfony, so bear with me.) I successfully installed APYDataGridBundle and am able to display a grid in an otherwise empty template:

{{ grid(grid) }}

But when I extend base.html.twig in index.html.twig, I get an error. The code:

{% extends '::base.html.twig' %}
{{ grid(grid) }}

results in this error: A template that extends another one cannot have a body in TestTranspoBundle:Programs:index.html.twig at line 2.

I don't see anything about this in the APYDataGridBundle issues, and it seems like it would be a big problem if it were their fault rather than user error on my part. So I'm hoping I'm just making a newbie error.

Here is the controller that is calling the template:

namespace Test\TranspoBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use APY\DataGridBundle\Grid\Source\Entity;

class ProgramsController extends Controller
{
    public function indexAction()
    {
      $source = new Entity('TestTranspoBundle:Programs');
      $grid = $this->get('grid');
      $grid->setSource($source);
      $grid->isReadyForRedirect();
      return $this->render('TestTranspoBundle:Programs:index.html.twig', array('grid' => $grid));
    }
}

Here is base.html.twig:

<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
        <title>{% block title %}My System - Symfony{% endblock %}</title>
        {% block stylesheets %}
          <!-- blueprint CSS framework -->
          <link rel="stylesheet" type="text/css" href="{{ asset('bundles/testtranspo/css/screen.css') }}" media="screen, projection" >
          <link rel="stylesheet" type="text/css" href="{{ asset('bundles/testtranspo/css/print.css') }}" media="print" >
          <!--[if lt IE 8]>
              <link rel="stylesheet" type="text/css" href="{{ asset('bundles/testtranspo/css/ie.css') }}" media="screen, projection" >
          <![endif]-->

          <link rel="stylesheet" type="text/css" href="{{ asset('bundles/testtranspo/css/main.css') }}" >
          <link rel="stylesheet" type="text/css" href="{{ asset('bundles/testtranspo/css/form.css') }}" >
        {% endblock %}
        <link rel="icon" type="image/x-icon" href="{{ asset('favicon.ico') }}" />
    </head>
    <body>
      <div class="container" id="page">
        <div id="header">
          <div id="logo">
            <span>My System</span>
            <span id="logout">Hi, Logged In User. <a href="https://weblogin.umich.edu/cgi-bin/logout">Log out.</a>
            </span>
          </div>
        </div>
        <div id="mainmenu">
          {% block sidebar %}
            <ul>
              <li class="first" id="nav-people"><a href="{{ path('_people_index') }}">People</a></li>

              <li class="first" id="nav-reservations"><a href="{{ path('_reservations_index') }}">Reservations</a></li>
              <li class="first" id="nav-vehicles"><a href="{{ path('_vehicles_index') }}">Vehicles</a></li>
              <li class="first" id="nav-programs"><a href="{{ path('_programs_index') }}">Programs</a></li>
              <li class="first" id="nav-destinations"><a href="{{ path('_destinations_index') }}">Destinations</a></li>
              <li class="first" id="nav-reports"><a href="{{ path('_reports_index') }}">Reports</a></li>

              {% if TRUE %}
                <li class="first" id="nav-installation"><a href="{{ path('_installation_update') }}">Site On/Off</a></li>
              {% endif %}
            </ul>
          {% endblock %}
        </div>
        <div id="content">
          {% block body %}{% endblock %}
        </div>
      </div>
        {% block javascripts %}{% endblock %}
    </body>
</html>

Copyright Notice：Content Author:「Erica Ackerman」，Reproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/19040803/symfony-twig-cant-extend-a-template-when-displaying-a-grid-with-apydatagridbund