public function search(SiteSearch $siteSearch)
{
// We create a query to return all the articles but if the criteria text is specified, we use it
if ($siteSearch->getText() != null && $siteSearch != '') {
$baseQuery = new \Elastica\Query\MultiMatch();
$baseQuery->setQuery($siteSearch->getText())->setFields(array('title', 'subtitle', 'courseContent', 'content'));
$baseQuery->setFuzziness(0.7);
$baseQuery->setMinimumShouldMatch('80%');
} else {
$baseQuery = new \Elastica\Query\MatchAll();
}
// Then we create filters depending on the chosen criterias
// Filter courses only if type is not "product"
$productTypeFilter = new \Elastica\Filter\Type();
$productTypeFilter->setType('product');
$productNotFilter = new \Elastica\Filter\BoolNot($productTypeFilter);
// Filter for products with available courses
$nestedFilter = new \Elastica\Filter\Nested();
$nestedFilter->setPath('courses');
$nestedFilter->setQuery(new \Elastica\Query\Range('beginDate', array('gte' => \Elastica\Util::convertDate((new \DateTime())->getTimestamp()))));
// Filter not(products) OR products with available courses
$orFilter = new \Elastica\Filter\BoolOr();
$orFilter->addFilter($productNotFilter);
$orFilter->addFilter($nestedFilter);
// Create a bool filter to put everything together
$boolFilter = new \Elastica\Filter\Bool();
$boolFilter->addMust($orFilter);
// Filter type
if ($siteSearch->getIsProduct() || $siteSearch->getIsInfoEvent() || $siteSearch->getIsContent()) {
// Create OR filter to put together the types
$typeOrFilter = new \Elastica\Filter\BoolOr();
// Filter products
if ($siteSearch->getIsProduct()) {
$productAndFilter = new \Elastica\Filter\BoolAnd();
$productAndFilter->addFilter($productTypeFilter);
$infoFilter = new \Elastica\Filter\Term(array('infoVa' => false));
$productAndFilter->addFilter($infoFilter);
$typeOrFilter->addFilter($productAndFilter);
}
// Filter info events if isProduct is not selected
if ($siteSearch->getIsInfoEvent()) {
$productAndFilter = new \Elastica\Filter\BoolAnd();
$productAndFilter->addFilter($productTypeFilter);
$infoFilter = new \Elastica\Filter\Term(array('infoVa' => true));
$productAndFilter->addFilter($infoFilter);
$typeOrFilter->addFilter($productAndFilter);
}
// Filter content
if ($siteSearch->getIsContent()) {
$typeOrFilter->addFilter($productNotFilter);
}
$boolFilter->addMust($typeOrFilter);
}
// Filter product type
if ($siteSearch->getProductType()) {
$productTypeFilter = new \Elastica\Filter\Nested();
$productTypeFilter->setPath('productType');
$productTypeFilter->setFilter(new \Elastica\Filter\Term(array('productType._id' => $siteSearch->getProductType()->getId())));
$boolFilter->addMust($productTypeFilter);
}
// Filter day time
if ($siteSearch->getDayTime()) {
$dayTimeFilter = new \Elastica\Filter\Nested();
$dayTimeFilter->setPath('courses');
$dayTimeFilter->setFilter(new \Elastica\Filter\Term(array('courses.dayTimes' => $siteSearch->getDayTime())));
$boolFilter->addMust($dayTimeFilter);
}
// Filter category
if ($siteSearch->getCategory()) {
$categoryFilter = new \Elastica\Filter\BoolOr();
$mainCategoryFilter = new \Elastica\Filter\Nested();
$mainCategoryFilter->setPath('category');
$mainCategoryFilter->setFilter(new \Elastica\Filter\Term(array('category._id' => $siteSearch->getCategory()->getId())));
$subCategoryFilter = new \Elastica\Filter\Nested();
$subCategoryFilter->setPath('subcategory');
$subCategoryFilter->setFilter(new \Elastica\Filter\Term(array('subcategory._id' => $siteSearch->getCategory()->getId())));
$additionalCategoryFilter = new \Elastica\Filter\Nested();
$additionalCategoryFilter->setPath('additionalCategories');
$additionalCategoryFilter->setFilter(new \Elastica\Filter\Term(array('additionalCategories._id' => $siteSearch->getCategory()->getId())));
$categoryFilter->addFilter($mainCategoryFilter);
$categoryFilter->addFilter($subCategoryFilter);
$categoryFilter->addFilter($additionalCategoryFilter);
$boolFilter->addMust($categoryFilter);
}
$filtered = new \Elastica\Query\Filtered($baseQuery, $boolFilter);
$query = \Elastica\Query::create($filtered);
$sort = $siteSearch->getSort();
if (!empty($sort)) {
$sort = explode(' ', $sort);
$query->setSort(array($sort[0] => array('order' => $sort[1]), "_score" => array('order' => 'desc')));
}
$paginated = $this->finder->findPaginated($query);
$paginated->setMaxPerPage($siteSearch->getPerPage())->setCurrentPage($siteSearch->getPage());
return $paginated;
}
/**
* Builds a multi match query with the cross_field type.
*
* @param array $boostedField of boosted fields
* @param string $queryString the query
* @param string $minShouldMatch the MinimumShouldMatch value
* @return \Elastica\Query\MultiMatch
*/
private function buildCrossFields(array $boostedFields, $queryString, $minShouldMatch)
{
$fields = array();
foreach ($boostedFields as $f) {
$fields[] = $f['field'] . '^' . $f['boost'];
}
$cross = new \Elastica\Query\MultiMatch();
$cross->setQuery($queryString);
$cross->setFields($fields);
$cross->setType('cross_fields');
$cross->setMinimumShouldMatch($minShouldMatch);
return $cross;
}
