Sub views (layouts, templates) in Slim php framework
I'm trying out the Slim php framework
Is it possible to have layouts or sub views in Slim? I'd like to use a view file as a template with variables as placeholders for other views loaded separately.
How would I do that?
Answer
filename: myview.php
<?php
class myview extends Slim_View
{
static protected $_layout = NULL;
public static function set_layout($layout=NULL)
{
self::$_layout = $layout;
}
public function render( $template ) {
extract($this->data);
$templatePath = $this->getTemplatesDirectory() . '/' . ltrim($template, '/');
if ( !file_exists($templatePath) ) {
throw new RuntimeException('View cannot render template `' . $templatePath . '`. Template does not exist.');
}
ob_start();
require $templatePath;
$html = ob_get_clean();
return $this->_render_layout($html);
}
public function _render_layout($_html)
{
if(self::$_layout !== NULL)
{
$layout_path = $this->getTemplatesDirectory() . '/' . ltrim(self::$_layout, '/');
if ( !file_exists($layout_path) ) {
throw new RuntimeException('View cannot render layout `' . $layout_path . '`. Layout does not exist.');
}
ob_start();
require $layout_path;
$_html = ob_get_clean();
}
return $_html;
}
}
?>
example index.php:
<?php
require 'Slim/Slim.php';
require 'myview.php';
// instantiate my custom view
$myview = new myview();
// seems you need to specify during construction
$app = new Slim(array('view' => $myview));
// specify the a default layout
myview::set_layout('default_layout.php');
$app->get('/', function() use ($app) {
// you can override the layout for a particular route
// myview::set_layout('index_layout.php');
$app->render('index.php',array());
});
$app->run();
?>
default_layout.php:
<html>
<head>
<title>My Title</title>
</head>
<body>
<!-- $_html contains the output from the view -->
<?= $_html ?>
</body>
</html>