Check to see if a widget area has any widgets

If you want to check that a WidgetArea actually has widgets, and only display it if it has, you can add this function to your Page_Controller (where widgetBarID is the name of your widgetArea + ID):
function HasWidgets() { return DataObject::get("Widget", "ParentID = $this->WidgetbarID"); }

Then in your template file, MyPage.ss you can use HasWidgets to check whether the WidgetArea should be rendered:
<%if HasWidgets %> <div id="Widgetbar"> $Widgetbar </div> <% end_if %>

You need to have added a WidgetArea to your page (called 'Widgetbar' in this example), otherwise the above will fail and you'll get a white page of death. This code will add a widgetArea to MyPage:
class MyPage extends Page { static $db = array( ); static $has_one = array( "Widgetbar" => "WidgetArea" ); function getCMSFields() { $fields = parent::getCMSFields(); $fields->addFieldToTab('Root.Content.Widgets', new WidgetAreaEditor('Widgetbar')); return $fields; } }

About the Author