public function executeDiff()
{
$this->setPage();
// $this->revision is revision2
$this->forward403Unless($this->canView);
$this->forward404If($this->page->isNew());
$this->forward404If($this->revision->isNew());
// Source revision
$c = new Criteria();
$c->add(nahoWikiRevisionPeer::PAGE_ID, $this->page->getId());
$c->add(nahoWikiRevisionPeer::REVISION, $this->getRequestParameter('oldRevision'));
$this->revision1 = nahoWikiRevisionPeer::doSelectOne($c);
$this->forward404Unless($this->revision1);
// Dest revision
$this->revision2 = $this->revision;
// Make diff
$lines1 = explode("\n", $this->revision1->getContent());
$lines2 = explode("\n", $this->revision2->getContent());
$diff = new Text_Diff('auto', array($lines1, $lines2));
switch ($this->getRequestParameter('mode', 'inline')) {
case 'unified':
$renderer = new Text_Diff_Renderer_unified();
break;
case 'context':
$renderer = new Text_Diff_Renderer_context();
break;
case 'inline':
default:
$renderer = new Text_Diff_Renderer_inline();
break;
}
$this->diff = $renderer->render($diff);
// Direct download
if ($this->getRequestParameter('raw')) {
$this->getResponse()->setContentType('text/plain');
$this->renderText($this->diff);
return sfView::NONE;
}
return sfView::SUCCESS;
}
