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title: Rendering data to a template summary: Call and render SilverStripe templates manually.
Rendering data to a template
Templates do nothing on their own. Rather, they are used to render a particular object. All of the <% if %>,
<% loop %> and other variables are methods or parameters that are called on the current object in
scope. All that is necessary is that the object is an instance of ViewableData (or one of its
subclasses).
The following will render the given data into a template. Given the template:
app/templates/Coach_Message.ss
<strong>$Name</strong> is the $Role on our team.
Our application code can render into that view using renderWith. This method is called on the ViewableData
instance with a template name or an array of templates to render.
app/code/Page.php
$arrayData = new SilverStripe\View\ArrayData([
'Name' => 'John',
'Role' => 'Head Coach'
]);
echo $arrayData->renderWith('Coach_Message');
// returns "<strong>John</strong> is the Head Coach on our team."
$controller->renderWith(['MyController', 'MyBaseController']);
SilverStripe\Security\Security::getCurrentUser()->renderWith('Member_Profile');
renderWith can be used to override the default template process. For instance, to provide an ajax version of a
template.
use SilverStripe\CMS\Controllers\ContentController;
class PageController extends ContentController
{
private static $allowed_actions = ['iwantmyajax'];
public function iwantmyajax()
{
if (Director::is_ajax()) {
return $this->renderWith('AjaxTemplate');
} else {
return $this->httpError(404);
}
}
}
Any data you want to render into the template that does not extend ViewableData should be wrapped in an object that
does, such as ArrayData or ArrayList.
use SilverStripe\View\ArrayData;
use SilverStripe\ORM\ArrayList;
use SilverStripe\Control\Director;
use SilverStripe\CMS\Controllers\ContentController;
class PageController extends ContentController
{
// ..
public function iwantmyajax()
{
if (Director::is_ajax()) {
$experience = new ArrayList();
$experience->push(new ArrayData([
'Title' => 'First Job'
]));
return $this->customise(new ArrayData([
'Name' => 'John',
'Role' => 'Head Coach',
'Experience' => $experience
]))->renderWith('AjaxTemplate');
} else {
return $this->httpError(404);
}
}
}