Il layout contiene gli elementi HTML comuni a tutte le pagine del sito.
La struttura finale del sito sarà composta dalla combinazione layout + template.

Il layout in Symfony 1.4.22 è il file in:
jobeet/apps/frontend/templates/layout.php


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
  <head>
    <?php include_http_metas() ?>
    <?php include_metas() ?>
    <?php include_title() ?>
    <link rel="shortcut icon" href="/favicon.ico" />
    <?php include_stylesheets() ?>
    <?php include_javascripts() ?>
  </head>
  <body>
    <?php echo $sf_content ?>
  </body>
</html>

La parte più interessante è: 


<?php echo $sf_content ?>

La variabile $sf_content contiene HTML generato dall’azione di Symfony.

Di default, il task generate:project ha creato tre cartelle per i file degli elementi grafici:
– web/images/
– web/css/
– web/js/

In Symfony è possibile definire diversi layout, vediamo un esempio pratico.

actions.class.php


<?php
 
class contenutoActions extends sfActions // estende la classe Symfony
{ 
  public function executePageone() // http://localhost/jobeet/web/frontend_dev.php/contenuto/pageone
  {
  }
   public function executePagetwo() // http://localhost/jobeet/web/frontend_dev.php/contenuto/pagetwo
  {
      $this->setLayout('mio_layout');
  }
}// END class

pageoneSuccess.php


Page One Success

pagetwoSuccess.php


Page Two Success

layout.php


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
  <head>
    <?php include_http_metas() ?>
    <?php include_metas() ?>
    <?php include_title() ?>
    <link rel="shortcut icon" href="/favicon.ico" />
    <?php include_stylesheets() ?>
    <?php include_javascripts() ?>
  </head>
  <body>
    Layout di default
    <?php echo $sf_content ?>
  </body>
</html>

mio_layout.php


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
  <head>
    <?php include_http_metas() ?>
    <?php include_metas() ?>
    <?php include_title() ?>
    <link rel="shortcut icon" href="/favicon.ico" />
    <?php include_stylesheets() ?>
    <?php include_javascripts() ?>
  </head>
  <body>
    Mio Layout
    <?php echo $sf_content ?>
  </body>
</html>

Puntare il browser a:

– http://localhost/jobeet/web/frontend_dev.php/contenuto/pageone
Renderizza:
Layout di default Page One Success

– http://localhost/jobeet/web/frontend_dev.php/contenuto/pagetwo
Renderizza:
Mio Layout Page Two Success

Reference:
http://symfony.com/legacy/doc/jobeet/1_4/it/04?orm=Doctrine