silverstripe-cms/code/Reports/RecentlyEditedReport.php

<?php

namespace SilverStripe\CMS\Reports;

use SilverStripe\ORM\FieldType\DBDatetime;
use SilverStripe\ORM\DataObject;
use SilverStripe\Reports\Report;

class RecentlyEditedReport extends Report {

	public function title() {
		return _t('SideReport.LAST2WEEKS',"Pages edited in the last 2 weeks");
	}

	public function group() {
		return _t('SideReport.ContentGroupTitle', "Content reports");
	}

	public function sort() {
		return 200;
	}

	public function sourceRecords($params = null) {
		$threshold = strtotime('-14 days', DBDatetime::now()->Format('U'));
		return DataObject::get("SilverStripe\\CMS\\Model\\SiteTree", "\"SiteTree\".\"LastEdited\" > '".date("Y-m-d H:i:s", $threshold)."'", "\"SiteTree\".\"LastEdited\" DESC");
	}

	public function columns() {
		return array(
			"Title" => array(
				"title" => "Title", // todo: use NestedTitle(2)
				"link" => true,
			),
		);
	}
}