119 lines
3.6 KiB
PHP
119 lines
3.6 KiB
PHP
<?php
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namespace FOS\ElasticaBundle\Doctrine\ORM;
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use Doctrine\ORM\QueryBuilder;
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use FOS\ElasticaBundle\Doctrine\AbstractProvider;
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use FOS\ElasticaBundle\Exception\InvalidArgumentTypeException;
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class Provider extends AbstractProvider
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{
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const ENTITY_ALIAS = 'a';
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/**
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* Disables logging and returns the logger that was previously set.
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*
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* @return mixed
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*/
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protected function disableLogging()
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{
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$configuration = $this->managerRegistry
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->getManagerForClass($this->objectClass)
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->getConnection()
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->getConfiguration();
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$logger = $configuration->getSQLLogger();
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$configuration->setSQLLogger(null);
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return $logger;
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}
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/**
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* Reenables the logger with the previously returned logger from disableLogging();.
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*
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* @param mixed $logger
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*
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* @return mixed
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*/
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protected function enableLogging($logger)
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{
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$configuration = $this->managerRegistry
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->getManagerForClass($this->objectClass)
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->getConnection()
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->getConfiguration();
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$configuration->setSQLLogger($logger);
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}
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/**
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* {@inheritDoc}
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*/
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protected function countObjects($queryBuilder)
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{
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if (!$queryBuilder instanceof QueryBuilder) {
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throw new InvalidArgumentTypeException($queryBuilder, 'Doctrine\ORM\QueryBuilder');
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}
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/* Clone the query builder before altering its field selection and DQL,
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* lest we leave the query builder in a bad state for fetchSlice().
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*/
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$qb = clone $queryBuilder;
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$rootAliases = $queryBuilder->getRootAliases();
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return $qb
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->select($qb->expr()->count($rootAliases[0]))
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// Remove ordering for efficiency; it doesn't affect the count
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->resetDQLPart('orderBy')
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->getQuery()
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->getSingleScalarResult();
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}
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/**
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* This method should remain in sync with SliceFetcher::fetch until it is deprecated and removed.
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*
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* {@inheritDoc}
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*/
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protected function fetchSlice($queryBuilder, $limit, $offset)
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{
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if (!$queryBuilder instanceof QueryBuilder) {
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throw new InvalidArgumentTypeException($queryBuilder, 'Doctrine\ORM\QueryBuilder');
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}
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/*
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* An orderBy DQL part is required to avoid fetching the same row twice.
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* @see http://stackoverflow.com/questions/6314879/does-limit-offset-length-require-order-by-for-pagination
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* @see http://www.postgresql.org/docs/current/static/queries-limit.html
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* @see http://www.sqlite.org/lang_select.html#orderby
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*/
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$orderBy = $queryBuilder->getDQLPart('orderBy');
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if (empty($orderBy)) {
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$rootAliases = $queryBuilder->getRootAliases();
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$identifierFieldNames = $this->managerRegistry
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->getManagerForClass($this->objectClass)
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->getClassMetadata($this->objectClass)
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->getIdentifierFieldNames();
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foreach ($identifierFieldNames as $fieldName) {
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$queryBuilder->addOrderBy($rootAliases[0].'.'.$fieldName);
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}
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}
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return $queryBuilder
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->setFirstResult($offset)
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->setMaxResults($limit)
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->getQuery()
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->getResult();
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}
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/**
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* {@inheritDoc}
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*/
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protected function createQueryBuilder($method)
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{
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return $this->managerRegistry
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->getManagerForClass($this->objectClass)
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->getRepository($this->objectClass)
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// ORM query builders require an alias argument
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->{$method}(static::ENTITY_ALIAS);
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}
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}
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