<?php declare(strict_types=1);
namespace Shopware\Core\Framework\DataAbstractionLayer\Dbal;
use Shopware\Core\Framework\Context;
use Shopware\Core\Framework\DataAbstractionLayer\Dbal\Exception\InvalidSortingDirectionException;
use Shopware\Core\Framework\DataAbstractionLayer\Dbal\FieldResolver\CriteriaPartResolver;
use Shopware\Core\Framework\DataAbstractionLayer\EntityDefinition;
use Shopware\Core\Framework\DataAbstractionLayer\Field\StorageAware;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Criteria;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Filter\AndFilter;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Filter\Filter;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Parser\SqlQueryParser;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Query\ScoreQuery;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Sorting\CountSorting;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Sorting\FieldSorting;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Term\EntityScoreQueryBuilder;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Term\SearchTermInterpreter;
/**
* @internal
*/
class CriteriaQueryBuilder
{
/**
* @var SqlQueryParser
*/
private $parser;
/***
* @var EntityDefinitionQueryHelper
*/
private $helper;
/**
* @var SearchTermInterpreter
*/
private $interpreter;
/**
* @var EntityScoreQueryBuilder
*/
private $scoreBuilder;
/**
* @var JoinGroupBuilder
*/
private $joinGrouper;
/**
* @var CriteriaPartResolver
*/
private $criteriaPartResolver;
public function __construct(
SqlQueryParser $parser,
EntityDefinitionQueryHelper $helper,
SearchTermInterpreter $interpreter,
EntityScoreQueryBuilder $scoreBuilder,
JoinGroupBuilder $joinGrouper,
CriteriaPartResolver $criteriaPartResolver
) {
$this->parser = $parser;
$this->helper = $helper;
$this->interpreter = $interpreter;
$this->scoreBuilder = $scoreBuilder;
$this->joinGrouper = $joinGrouper;
$this->criteriaPartResolver = $criteriaPartResolver;
}
public function build(QueryBuilder $query, EntityDefinition $definition, Criteria $criteria, Context $context, array $paths = []): QueryBuilder
{
$query = $this->helper->getBaseQuery($query, $definition, $context);
if ($definition->isInheritanceAware() && $context->considerInheritance()) {
$parent = $definition->getFields()->get('parent');
if ($parent) {
$this->helper->resolveField($parent, $definition, $definition->getEntityName(), $query, $context);
}
}
if ($criteria->getTerm()) {
$pattern = $this->interpreter->interpret((string) $criteria->getTerm());
$queries = $this->scoreBuilder->buildScoreQueries($pattern, $definition, $definition->getEntityName(), $context);
$criteria->addQuery(...$queries);
}
$filters = $this->groupFilters($definition, $criteria, $paths);
$this->criteriaPartResolver->resolve($filters, $definition, $query, $context);
$this->criteriaPartResolver->resolve($criteria->getQueries(), $definition, $query, $context);
$this->criteriaPartResolver->resolve($criteria->getSorting(), $definition, $query, $context);
// do not use grouped filters, because the grouped filters are mapped flat and the logical OR/AND are removed
$filter = new AndFilter(array_merge(
$criteria->getFilters(),
$criteria->getPostFilters()
));
$this->addFilter($definition, $filter, $query, $context);
$this->addQueries($definition, $criteria, $query, $context);
if ($criteria->getLimit() === 1) {
$query->removeState(EntityDefinitionQueryHelper::HAS_TO_MANY_JOIN);
}
$this->addSortings($definition, $criteria, $criteria->getSorting(), $query, $context);
return $query;
}
public function addFilter(EntityDefinition $definition, ?Filter $filter, QueryBuilder $query, Context $context): void
{
if (!$filter) {
return;
}
$parsed = $this->parser->parse($filter, $definition, $context);
if (empty($parsed->getWheres())) {
return;
}
$query->andWhere(implode(' AND ', $parsed->getWheres()));
foreach ($parsed->getParameters() as $key => $value) {
$query->setParameter($key, $value, $parsed->getType($key));
}
}
public function addSortings(EntityDefinition $definition, Criteria $criteria, array $sortings, QueryBuilder $query, Context $context): void
{
/** @var FieldSorting $sorting */
foreach ($sortings as $sorting) {
$this->validateSortingDirection($sorting->getDirection());
if ($sorting->getField() === '_score') {
if (!$this->hasQueriesOrTerm($criteria)) {
continue;
}
// Only add manual _score sorting if the query contains a _score calculation and selection (i.e. the
// criteria has a term or queries). Otherwise the SQL selection would fail because no _score field
// exists in any entity.
$query->addOrderBy('_score', $sorting->getDirection());
$query->addState('_score');
continue;
}
$accessor = $this->helper->getFieldAccessor($sorting->getField(), $definition, $definition->getEntityName(), $context);
if ($sorting instanceof CountSorting) {
$query->addOrderBy(sprintf('COUNT(%s)', $accessor), $sorting->getDirection());
continue;
}
if ($sorting->getNaturalSorting()) {
$query->addOrderBy('LENGTH(' . $accessor . ')', $sorting->getDirection());
}
if (!$this->hasGroupBy($criteria, $query)) {
$query->addOrderBy($accessor, $sorting->getDirection());
continue;
}
if (!\in_array($sorting->getField(), ['product.cheapestPrice', 'cheapestPrice'], true)) {
if ($sorting->getDirection() === FieldSorting::ASCENDING) {
$accessor = 'MIN(' . $accessor . ')';
} else {
$accessor = 'MAX(' . $accessor . ')';
}
}
$query->addOrderBy($accessor, $sorting->getDirection());
}
}
private function addQueries(EntityDefinition $definition, Criteria $criteria, QueryBuilder $query, Context $context): void
{
$queries = $this->parser->parseRanking(
$criteria->getQueries(),
$definition,
$definition->getEntityName(),
$context
);
if (empty($queries->getWheres())) {
return;
}
$query->addState(EntityDefinitionQueryHelper::HAS_TO_MANY_JOIN);
$primary = $definition->getPrimaryKeys()->first();
\assert($primary instanceof StorageAware);
$select = 'SUM(' . implode(' + ', $queries->getWheres()) . ') / ' . \sprintf('COUNT(%s.%s)', $definition->getEntityName(), $primary->getStorageName());
$query->addSelect($select . ' as _score');
// Sort by _score primarily if the criteria has a score query or search term
if (!$this->hasScoreSorting($criteria)) {
$criteria->addSorting(new FieldSorting('_score', FieldSorting::DESCENDING));
}
$minScore = array_map(function (ScoreQuery $query) {
return $query->getScore();
}, $criteria->getQueries());
$minScore = min($minScore);
$query->andHaving('_score >= :_minScore');
$query->setParameter('_minScore', $minScore);
$query->addState('_score');
foreach ($queries->getParameters() as $key => $value) {
$query->setParameter($key, $value, $queries->getType($key));
}
}
private function hasGroupBy(Criteria $criteria, QueryBuilder $query): bool
{
if ($query->hasState(EntityReader::MANY_TO_MANY_LIMIT_QUERY)) {
return false;
}
return $query->hasState(EntityDefinitionQueryHelper::HAS_TO_MANY_JOIN) || !empty($criteria->getGroupFields());
}
private function groupFilters(EntityDefinition $definition, Criteria $criteria, array $additionalFields = []): array
{
$filters = [];
foreach ($criteria->getFilters() as $filter) {
$filters[] = new AndFilter([$filter]);
}
foreach ($criteria->getPostFilters() as $filter) {
$filters[] = new AndFilter([$filter]);
}
// $additionalFields is used by the entity aggregator.
// For example, if an aggregation is to be created on a to many association that is already stored as a filter.
// The association is therefore referenced twice in the query and would have to be created as a sub-join in each case. But since only the filters are considered, the association is referenced only once.
return $this->joinGrouper->group($filters, $definition, $additionalFields);
}
private function hasScoreSorting(Criteria $criteria): bool
{
foreach ($criteria->getSorting() as $sorting) {
if ($sorting->getField() === '_score') {
return true;
}
}
return false;
}
private function hasQueriesOrTerm(Criteria $criteria): bool
{
return !empty($criteria->getQueries()) || $criteria->getTerm();
}
/**
* @throws InvalidSortingDirectionException
*/
private function validateSortingDirection(string $direction): void
{
if (!\in_array(mb_strtoupper($direction), [FieldSorting::ASCENDING, FieldSorting::DESCENDING], true)) {
throw new InvalidSortingDirectionException($direction);
}
}
}