Symfony pagination

routing.yml

index_offer:
  url:   /offer/index/page/:page
  param: { module: offers, action: index, page: 1} #set default value of page to 1

actions.class.php

public function preExecute()
      {
          $culture = $this->getUser()->getCulture();
          
          $siteSectionId = SiteSectionTable::getSiteSectionId($culture, 'offer');
          $this->siteSectionId = $siteSectionId;
          
          return parent::preExecute();
      }

public function executeIndex(sfWebRequest $request)
      {          
        $numPerPage = sfConfig::get('app_max_offers_on_offer_index');
        $query = OfferTable::getAllAvailableOffersQuery($this->siteSectionId);
        
        $this->processPager($request, $numPerPage, $query);
      }

protected function processPager(sfWebRequest $request, $numPerPage, $query)
      {          
          $this->pager = new sfDoctrinePager('Offer', $numPerPage); 
          $this->pager->setQuery($query);
          $this->pager->setPage($request->getParameter('page', 1));
          $this->pager->init();
      }

_pagination.php

<?php if ($pager->haveToPaginate()): ?>
    <div class="pagination <?php echo is_null($sub_class)?null:$sub_class; ?>">
        <?php if ($sub_class == 'endpage'): ?>
            <span>Page <?php echo $pager->getPage(); ?> sur <?php echo $pager->getLastPage(); ?></span>
        <?php endif; ?>
        
        <a href="<?php echo url_for($route, array('page' => '1')); ?>">première</a>
        <a href="<?php echo url_for($route, array('page' => $pager->getPreviousPage())); ?>">précédente</a>
        <ul>
            <?php foreach ($pager->getLinks() as $page): ?>
                <?php if ($page == $pager->getPage()): ?></a></li>
                    <li><a class="actif"><?php echo $page; ?>
                <?php else: ?>
                    <li><a href="<?php echo url_for($route, array('page' => $page)); ?>"><?php echo $page; ?></a></li>
                <?php endif; ?>
            <?php endforeach; ?>
        </ul>
        <a href="<?php echo url_for($route, array('page' => $pager->getNextPage())); ?>">suivante</a>
        <a href="<?php echo url_for($route, array('page' => $pager->getLastPage())); ?>">dernière</a>
    </div>
<?php endif; ?>