/**
* If a previous search is recorded in the session, return a link to it;
* otherwise, return a blank string.
*
* @param string $link Text to use as body of link
* @param string $prefix Text to place in front of link
* @param string $suffix Text to place after link
*
* @return string
*/
public function __invoke($link, $prefix = '', $suffix = '')
{
$last = $this->memory->retrieve();
if (!empty($last)) {
$escaper = $this->getView()->plugin('escapeHtml');
return $prefix . '<a href="' . $escaper($last) . '">' . $link . '</a>' . $suffix;
}
return '';
}
public function getEscapedLinkOnly()
{
$last = $this->memory->retrieve();
if (!empty($last)) {
$escaper = $this->getView()->plugin('escapeHtml');
return $last;
}
return '';
}
/**
* Handle event. Add config values
*
* @param EventInterface $event Search pre event
*
* @return EventInterface
*/
public function onSearchPre(EventInterface $event)
{
$backend = $event->getTarget();
if ($backend === $this->backend) {
$params = $event->getParam('params');
if ($params) {
// Set highlighting parameters unless explicitly disabled:
$hl = $params->get('hl');
if (!isset($hl[0]) || $hl[0] != 'false') {
// Add hl.q for non query events
if (!$event->getParam('query', false)) {
$lastSearch = $this->memory->retrieve();
if ($lastSearch) {
$urlParams = parse_url($lastSearch);
if (isset($urlParams['query'])) {
parse_str($urlParams['query'], $queryParams);
if (isset($queryParams['lookfor'])) {
$params->set('hl.q', '*:"' . addslashes($queryParams['lookfor']) . '"');
}
}
}
}
// All all highlight config fields
foreach ($this->config as $key => $value) {
$params->set('hl.' . $key, $value);
}
}
}
}
return $event;
}
/**
* Retrieve the last sort option used.
*
* @param string $context Context of search (usually search class ID).
*
* @return string
*/
public function getLastSort($context)
{
return $this->memory->retrieveLastSetting($context, 'sort');
}
/**
* Test disabling the memory.
*
* @return void
*/
public function testDisable()
{
$mem = new Memory();
$url = 'http://test';
$mem->rememberSearch($url);
$this->assertEquals($url, $mem->retrieveSearch());
$mem->disable();
$mem->rememberSearch('http://ignoreme');
$this->assertEquals($url, $mem->retrieveSearch());
}
/**
* Update the remembered "last search" in the session.
*
* @param \VuFind\Search\Base\Results $search Search object to remember.
*
* @return void
*/
protected function rememberSearch($search)
{
$baseUrl = $this->getController()->url()->fromRoute($search->getOptions()->getSearchAction());
Memory::rememberSearch($baseUrl . $search->getUrlQuery()->getParams(false));
}
/**
* Handle search history display && purge
*
* @return mixed
*/
public function historyAction()
{
// Force login if necessary
$user = $this->getUser();
if ($this->params()->fromQuery('require_login', 'no') !== 'no' && !$user) {
return $this->forceLogin();
}
// Retrieve search history
$search = $this->getTable('Search');
$searchHistory = $search->getSearches($this->getServiceLocator()->get('SessionManager')->getId(), is_object($user) ? $user->id : null);
// Build arrays of history entries
$saved = $unsaved = array();
// Loop through the history
foreach ($searchHistory as $current) {
$minSO = unserialize($current->search_object);
// Saved searches
if ($current->saved == 1) {
$saved[] = $minSO->deminify($this->getSearchManager());
} else {
// All the others...
// If this was a purge request we don't need this
if ($this->params()->fromQuery('purge') == 'true') {
$current->delete();
// We don't want to remember the last search after a purge:
Memory::forgetSearch();
} else {
// Otherwise add to the list
$unsaved[] = $minSO->deminify($this->getSearchManager());
}
}
}
return $this->createViewModel(array('saved' => $saved, 'unsaved' => $unsaved));
}