如何在Symfony2中渲染json到一个分支


How to render json into a twig in Symfony2

问题是如何将json传递给twig以呈现模板。我试图传递一个json与JsonResponse对象,但我没有找到方式来呈现模板。

TarifasController.php

<?php
/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace AppBundle'Controller'Admin;
use Symfony'Component'HttpFoundation'Request;
use Symfony'Component'HttpFoundation'Response;
use Symfony'Component'HttpFoundation'JsonResponse;
use Symfony'Bundle'FrameworkBundle'Controller'Controller;
use Sensio'Bundle'FrameworkExtraBundle'Configuration'Method;
use Sensio'Bundle'FrameworkExtraBundle'Configuration'Route;
use Sensio'Bundle'FrameworkExtraBundle'Configuration'Security;
use AppBundle'Entity'Tarifa;
/**
 *
 * @Route("/tarifas")
 */
class TarifasController extends Controller
{
    /**
     * @Route("/", name="tarifa_index")
     */
    public function indexAction()
    {
        $entityManager = $this->getDoctrine()->getManager();
        $tarifas = $entityManager->getRepository('AppBundle:Tarifa')->findAll();
        return $this->render('admin/tarifas/index.html.twig', array('tarifas' => $tarifas));
        //return new JsonResponse(array('json_tarifas' => json_encode($tarifas)));
    }
}

index.html.twig

{% extends 'admin/layout.html.twig' %}
{% block body_id 'admin_post_show' %}
{% block main %}
    <h1>{{ 'label.project_list'|trans }}</h1>
    <table id="tarifas_index" class="table table-striped">
        <thead>
        <tr>
            <th>{{ 'Id' }}</th>
            <th><i class="fa fa-user"></i> {{ 'label.title'|trans }}</th>
            <th><i class="fa fa-calendar"></i> {{ 'label.summary'|trans }}</th>
            <th><i class="fa fa-calendar"></i> {{ 'label.content'|trans }}</th>
            <th><i class="fa fa-cogs"></i> {{ 'label.actions'|trans }}</th>
        </tr>
        </thead>
        <tbody>
        {% for tarifa in tarifas %}
            <tr>
                <td>{{ tarifa.id }}</td>
                <td>{{ tarifa.codigo }}</td>
                <td>{{ tarifa.nombre }}</td>
                <td>{{ tarifa.razon }}</td>
                <td>
                    <div class="item-actions">
                        <a href="{{ path('project_detail', { id: tarifa.id }) }}" class="btn btn-sm btn-default">
                            {{ 'action.show'|trans }}
                        </a>
                    </div>
                </td>
            </tr>
        {% endfor %}
        </tbody>
    </table>
    <script>
        $(document).ready( function () {
            $('#tarifas_index').DataTable({
                data: tarifas
            });
        } );
    </script>
{% endblock %}

我如何从控制器传递json在DataTable中使用它(在twig模板中),但在此控制器中维护渲染。你能帮帮我吗?

你可以这样呈现

return $this->render('admin/tarifas/index.html.twig', array(
    'tarifas' => $tarifas
    'json_tarifas' => json_encode($tarifas)
));

和检索像这样在树枝,

<script type="text/javascript">
    $(document).ready( function () {
        $('#tarifas_index').DataTable({
            data: $.parseJSON('{{ json_tarifas | raw }}')
        });
    } );
</script>

我不明白你想要实现什么,但你可以简单地将json编码和正常数据发送到你的小枝,以你想要的方式使用它

return $this->render('admin/tarifas/index.html.twig', array(
    'tarifas' => $tarifas
    'json_tarifas' => json_encode($tarifas)
));