/**
* Create a filter url for the field named $title
* and identified by $key which consists of
* alias and field. $options holds all link
* parameters like "alt, class" and so on.
*
* $key example: "article.title"
*
* @param SlidingPagination $pagination
* @param array $fields
* @param array $options
* @param array $params
*
* @return array
*/
public function filter(SlidingPagination $pagination, array $fields, $options = array(), $params = array())
{
$options = array_merge(array('absolute' => defined('Symfony\\Component\\Routing\\Generator\\UrlGeneratorInterface::ABSOLUTE_PATH') ? UrlGeneratorInterface::ABSOLUTE_PATH : false, 'translationParameters' => array(), 'translationDomain' => null, 'button' => 'Filter'), $options);
$params = array_merge($pagination->getParams(), $params);
$params[$pagination->getPaginatorOption('pageParameterName')] = 1;
// reset to 1 on filter
$filterFieldName = $pagination->getPaginatorOption('filterFieldParameterName');
$filterValueName = $pagination->getPaginatorOption('filterValueParameterName');
$selectedField = isset($params[$filterFieldName]) ? $params[$filterFieldName] : null;
$selectedValue = isset($params[$filterValueName]) ? $params[$filterValueName] : null;
$action = $this->router->generate($pagination->getRoute(), $params, $options['absolute']);
foreach ($fields as $field => $title) {
$fields[$field] = $this->translator->trans($title, $options['translationParameters'], $options['translationDomain']);
}
$options['button'] = $this->translator->trans($options['button'], $options['translationParameters'], $options['translationDomain']);
unset($options['absolute'], $options['translationDomain'], $options['translationParameters']);
return array_merge($pagination->getPaginatorOptions(), $pagination->getCustomParameters(), compact('fields', 'action', 'filterFieldName', 'filterValueName', 'selectedField', 'selectedValue', 'options'));
}