silverstripe-codecompetition-2015

Page.php

<?php

// Allows visitors to like each Page once per IP
// Code submitted by relaxt confusion labs
class Page extends SiteTree {

	private static $has_many = array(
		'Likes' => 'Page_Like'
	);

}

class Page_Controller extends ContentController {

	// Enables liking a Page by appending "likethispage" to a Page's url
	private static $allowed_actions = array(
		'likethispage'
	);

	public function likethispage(SS_HTTPRequest $request) {
		$ip = $request->getIP();
		if($this->Likes()->filter('IP', $ip)->Count() == 0) {
			$pageLike = Page_Like::create();
			$pageLike->IP = $ip;
			$this->Likes()->add($pageLike);
		}
		$this->redirectBack();
	}

}

class Page_Like extends DataObject {

	private static $db = array(
		'IP' => 'Varchar(45)'
	);

	private static $has_one = array(
		'LikedPage' => 'Page'
	);

}