The problem I see with an approach like this is that the view is tied very
closely with the controller. Should the controller have any idea about
which javascript files need to be included on a particular page? Finding a
solution that minimizes the amount of common code that has to be placed in
the view but still provides the view with the ability to inject javascript,
css, page titles, meta tags, etc to header seems to be a problem I haven't
seen answered well in any framework. The template may include a couple
javascript or css files by default in every page, but even then, the page
may choose to remove the default files if it chooses.
Thoughts?
On 3/27/07, Matthew Weier O'Phinney <[EMAIL PROTECTED]> wrote:
-- Dale McNeill <[EMAIL PROTECTED]> wrote
(on Tuesday, 27 March 2007, 09:19 AM -0500):
> I've got some CSS and javascript that I would like to dynamically add to
> the HTML header depending on the controller/action. I would like to be
> able to append information like appending to the response body. Then
> use this information in a site wide template. The only solution that
> comes to mind is using a view variable and having each controller/action
> get the variable, append it, and write it back to the view. Is there
> some functionality that I might be overlooking? - Thanks
>
> Site wide template:
> <html>
> <head>
> <title> <?php echo $this->title; ?> </title>
> <?php echo $this->dynamic_header; ?>
Define $dynamic_header as an array in the view object. When you first
initialize the view object, do something like this:
$view = new Zend_View();
$view->dynamic_header = array();
Then, whenever you want to add to it, just add a new element to the
array:
$view->dynamic_header[] = '<meta name="keywords" value="zend framework
zend_view" /> ';
Then, in the view script, iterate over the array:
<?php foreach ($this->dynamic_header as $header):
echo $header, "\n";
endforeach; ?>
Finally, use a Two Step View as I've outlined previously in this thread
-- use a dispatchLoopShutdown() plugin to throw the response body into a
sitewide template (which it looks like you're doing here).
> </head>
> <body>
> ...common header...
> <?php echo $this->content; ?>
> ...common footer...
> </body>
> </html>
>
> Matthew Weier O'Phinney wrote:
> > -- Arnaud Limbourg <[EMAIL PROTECTED]> wrote
> > (on Monday, 26 March 2007, 07:04 AM +0200):
> >
> > > Matthew Weier O'Phinney wrote:
> > >
> > > > I throw a Zend_View object in the registry, and then access this
from my
> > > > controllers and plugins. The benefit of doing this is that the
> > > > controllers can set values in the view that are unused in their
> > > > individual view, but used later in the sitewide template.
> > > >
> > > > Then, I use a dispatchLoopShutdown() plugin to inject any
generated
> > > > content into a sitwide template:
> > > >
> > > >
> > > > class SiteTemplatePlugin extends Zend_Controller_Plugin_Abstract
> > > > {
> > > > public function dispatchLoopShutdown()
> > > > {
> > > > $response =
> > > > Zend_Controller_Front:;getInstance()->getResponse();
> > > > $view = Zend_Registry::get('view');
> > > > $view->content = $response->getBody();
> > > > $response->setBody($view->render('site.phtml'));
> > > > }
> > > > }
> > > >
> > > Which poses a problem when you want to send back json (or whatever)
and
> > > you don't want a site wide template :)
> > >
> >
> > This was a simple example. But it's actually really easy to return
JSON:
> >
> > public function dispatchLoopShutdown()
> > {
> > // assume that we've already determined the request is ajax
> > $request = $this->getRequest();
> > $response = $this->getResponse();
> > $view = Zend_Registry::get('view');
> >
> > if ($request->getParam('isAjax', false)) {
> > // Ajax request detected
> > // Get any variables set in the view
> > $vars = get_object_vars($view);
> >
> > // Merge with named path segments in response
> > $vars = array_merge($vars, $response->getBody(true));
> >
> > // Create a header and set the response body to a JSON
value
> > $resposne->setHeader('Content-Type', 'text/x-json');
> > $response->setBody(Zend_Json::encode($vars));
> > return;
> > }
> >
> > // Otherwise, process as normal
> > $view->content = $response->getBody();
> > $response->setBody($view->render('site.phtml'));
> > }
--
Matthew Weier O'Phinney
PHP Developer | [EMAIL PROTECTED]
Zend - The PHP Company | http://www.zend.com/
