Backlink

BasePresenter.php

<?php
	/** @var string @persistent */
	public $_backlink;

	public function link($destination, $args = [])
	{
		$modifiers = [];
		if (($pos = strrpos($destination, ')')) !== FALSE) {
			$modifiers = array_fill_keys(explode(')(', substr($destination, 1, $pos - 1)), TRUE);
			$destination = substr($destination, $pos + 1);
		}
		if (isset($modifiers['backlink'])) {
			$url = $this->getHttpRequest()->getUrl();
			$args['_backlink'] = substr($url->getAbsoluteUrl(), strlen($url->getHostUrl()));
		} elseif ($destination !== 'this') {
			$args['_backlink'] = NULL;
		}


		return parent::link($destination, $args);
	}

	public function redirectToBacklink()
	{
		if ($this->_backlink) {
			$this->redirectUrl($this->_backlink);
		}
	}