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<?php
/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\ORM;
use Doctrine\Common\Cache\Cache;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\DBAL\Driver\Statement;
use Doctrine\DBAL\LockMode;
use Doctrine\DBAL\Types\Type;
use Doctrine\ORM\Internal\Hydration\IterableResult;
use Doctrine\ORM\Mapping\ClassMetadata;
use Doctrine\ORM\Query\AST\DeleteStatement;
use Doctrine\ORM\Query\AST\SelectStatement;
use Doctrine\ORM\Query\AST\UpdateStatement;
use Doctrine\ORM\Query\Exec\AbstractSqlExecutor;
use Doctrine\ORM\Query\Parameter;
use Doctrine\ORM\Query\ParameterTypeInferer;
use Doctrine\ORM\Query\Parser;
use Doctrine\ORM\Query\ParserResult;
use Doctrine\ORM\Query\QueryException;
use Doctrine\ORM\Utility\HierarchyDiscriminatorResolver;
use function array_keys;
use function array_values;
use function assert;
use function count;
use function in_array;
use function ksort;
use function md5;
use function reset;
use function serialize;
use function sha1;
use function stripos;
/**
* A Query object represents a DQL query.
*/
final class Query extends AbstractQuery
{
/**
* A query object is in CLEAN state when it has NO unparsed/unprocessed DQL parts.
*/
public const STATE_CLEAN = 1;
/**
* A query object is in state DIRTY when it has DQL parts that have not yet been
* parsed/processed. This is automatically defined as DIRTY when addDqlQueryPart
* is called.
*/
public const STATE_DIRTY = 2;
/* Query HINTS */
/**
* The refresh hint turns any query into a refresh query with the result that
* any local changes in entities are overridden with the fetched values.
*/
public const HINT_REFRESH = 'doctrine.refresh';
public const HINT_CACHE_ENABLED = 'doctrine.cache.enabled';
public const HINT_CACHE_EVICT = 'doctrine.cache.evict';
/**
* Internal hint: is set to the proxy entity that is currently triggered for loading
*/
public const HINT_REFRESH_ENTITY = 'doctrine.refresh.entity';
/**
* The forcePartialLoad query hint forces a particular query to return
* partial objects.
*
* @todo Rename: HINT_OPTIMIZE
*/
public const HINT_FORCE_PARTIAL_LOAD = 'doctrine.forcePartialLoad';
/**
* The includeMetaColumns query hint causes meta columns like foreign keys and
* discriminator columns to be selected and returned as part of the query result.
*
* This hint does only apply to non-object queries.
*/
public const HINT_INCLUDE_META_COLUMNS = 'doctrine.includeMetaColumns';
/**
* An array of class names that implement \Doctrine\ORM\Query\TreeWalker and
* are iterated and executed after the DQL has been parsed into an AST.
*/
public const HINT_CUSTOM_TREE_WALKERS = 'doctrine.customTreeWalkers';
/**
* A string with a class name that implements \Doctrine\ORM\Query\TreeWalker
* and is used for generating the target SQL from any DQL AST tree.
*/
public const HINT_CUSTOM_OUTPUT_WALKER = 'doctrine.customOutputWalker';
/**
* Marks queries as creating only read only objects.
*
* If the object retrieved from the query is already in the identity map
* then it does not get marked as read only if it wasn't already.
*/
public const HINT_READ_ONLY = 'doctrine.readOnly';
public const HINT_INTERNAL_ITERATION = 'doctrine.internal.iteration';
public const HINT_LOCK_MODE = 'doctrine.lockMode';
/**
* The current state of this query.
*
* @var int
*/
private $_state = self::STATE_DIRTY;
/**
* A snapshot of the parameter types the query was parsed with.
*
* @var array<string,Type>
*/
private $parsedTypes = [];
/**
* Cached DQL query.
*
* @var string|null
*/
private $dql = null;
/**
* The parser result that holds DQL => SQL information.
*
* @var ParserResult
*/
private $parserResult;
/**
* The first result to return (the "offset").
*
* @var int|null
*/
private $firstResult = null;
/**
* The maximum number of results to return (the "limit").
*
* @var int|null
*/
private $maxResults = null;
/**
* The cache driver used for caching queries.
*
* @var Cache|null
*/
private $queryCache;
/**
* Whether or not expire the query cache.
*
* @var bool
*/
private $expireQueryCache = false;
/**
* The query cache lifetime.
*
* @var int
*/
private $queryCacheTTL;
/**
* Whether to use a query cache, if available. Defaults to TRUE.
*
* @var bool
*/
private $useQueryCache = true;
/**
* Gets the SQL query/queries that correspond to this DQL query.
*
* @return mixed The built sql query or an array of all sql queries.
*
* @override
*/
public function getSQL()
{
return $this->parse()->getSqlExecutor()->getSqlStatements();
}
/**
* Returns the corresponding AST for this DQL query.
*
* @return SelectStatement|UpdateStatement|DeleteStatement
*/
public function getAST()
{
$parser = new Parser($this);
return $parser->getAST();
}
/**
* {@inheritdoc}
*/
protected function getResultSetMapping()
{
// parse query or load from cache
if ($this->_resultSetMapping === null) {
$this->_resultSetMapping = $this->parse()->getResultSetMapping();
}
return $this->_resultSetMapping;
}
/**
* Parses the DQL query, if necessary, and stores the parser result.
*
* Note: Populates $this->_parserResult as a side-effect.
*/
private function parse(): ParserResult
{
$types = [];
foreach ($this->parameters as $parameter) {
/** @var Query\Parameter $parameter */
$types[$parameter->getName()] = $parameter->getType();
}
// Return previous parser result if the query and the filter collection are both clean
if ($this->_state === self::STATE_CLEAN && $this->parsedTypes === $types && $this->_em->isFiltersStateClean()) {
return $this->parserResult;
}
$this->_state = self::STATE_CLEAN;
$this->parsedTypes = $types;
$queryCache = $this->getQueryCacheDriver();
// Check query cache.
if (! ($this->useQueryCache && $queryCache)) {
$parser = new Parser($this);
$this->parserResult = $parser->parse();
return $this->parserResult;
}
$hash = $this->getQueryCacheId();
$cached = $this->expireQueryCache ? false : $queryCache->fetch($hash);
if ($cached instanceof ParserResult) {
// Cache hit.
$this->parserResult = $cached;
return $this->parserResult;
}
// Cache miss.
$parser = new Parser($this);
$this->parserResult = $parser->parse();
$queryCache->save($hash, $this->parserResult, $this->queryCacheTTL);
return $this->parserResult;
}
/**
* {@inheritdoc}
*/
protected function _doExecute()
{
$executor = $this->parse()->getSqlExecutor();
if ($this->_queryCacheProfile) {
$executor->setQueryCacheProfile($this->_queryCacheProfile);
} else {
$executor->removeQueryCacheProfile();
}
if ($this->_resultSetMapping === null) {
$this->_resultSetMapping = $this->parserResult->getResultSetMapping();
}
// Prepare parameters
$paramMappings = $this->parserResult->getParameterMappings();
$paramCount = count($this->parameters);
$mappingCount = count($paramMappings);
if ($paramCount > $mappingCount) {
throw QueryException::tooManyParameters($mappingCount, $paramCount);
}
if ($paramCount < $mappingCount) {
throw QueryException::tooFewParameters($mappingCount, $paramCount);
}
// evict all cache for the entity region
if ($this->hasCache && isset($this->_hints[self::HINT_CACHE_EVICT]) && $this->_hints[self::HINT_CACHE_EVICT]) {
$this->evictEntityCacheRegion();
}
[$sqlParams, $types] = $this->processParameterMappings($paramMappings);
$this->evictResultSetCache(
$executor,
$sqlParams,
$types,
$this->_em->getConnection()->getParams()
);
return $executor->execute($this->_em->getConnection(), $sqlParams, $types);
}
/**
* @param array<string,mixed> $sqlParams
* @param array<string,Type> $types
* @param array<string,mixed> $connectionParams
*/
private function evictResultSetCache(
AbstractSqlExecutor $executor,
array $sqlParams,
array $types,
array $connectionParams
): void {
if ($this->_queryCacheProfile === null || ! $this->getExpireResultCache()) {
return;
}
$cacheDriver = $this->_queryCacheProfile->getResultCacheDriver();
$statements = (array) $executor->getSqlStatements(); // Type casted since it can either be a string or an array
foreach ($statements as $statement) {
$cacheKeys = $this->_queryCacheProfile->generateCacheKeys($statement, $sqlParams, $types, $connectionParams);
$cacheDriver->delete(reset($cacheKeys));
}
}
/**
* Evict entity cache region
*/
private function evictEntityCacheRegion(): void
{
$AST = $this->getAST();
if ($AST instanceof SelectStatement) {
throw new QueryException('The hint "HINT_CACHE_EVICT" is not valid for select statements.');
}
$className = $AST instanceof DeleteStatement
? $AST->deleteClause->abstractSchemaName
: $AST->updateClause->abstractSchemaName;
$this->_em->getCache()->evictEntityRegion($className);
}
/**
* Processes query parameter mappings.
*
* @param array<list<int>> $paramMappings
*
* @return mixed[][]
* @psalm-return array{0: list<mixed>, 1: array}
*
* @throws Query\QueryException
*/
private function processParameterMappings(array $paramMappings): array
{
$sqlParams = [];
$types = [];
foreach ($this->parameters as $parameter) {
$key = $parameter->getName();
if (! isset($paramMappings[$key])) {
throw QueryException::unknownParameter($key);
}
[$value, $type] = $this->resolveParameterValue($parameter);
foreach ($paramMappings[$key] as $position) {
$types[$position] = $type;
}
$sqlPositions = $paramMappings[$key];
// optimized multi value sql positions away for now,
// they are not allowed in DQL anyways.
$value = [$value];
$countValue = count($value);
for ($i = 0, $l = count($sqlPositions); $i < $l; $i++) {
$sqlParams[$sqlPositions[$i]] = $value[$i % $countValue];
}
}
if (count($sqlParams) !== count($types)) {
throw QueryException::parameterTypeMismatch();
}
if ($sqlParams) {
ksort($sqlParams);
$sqlParams = array_values($sqlParams);
ksort($types);
$types = array_values($types);
}
return [$sqlParams, $types];
}
/**
* @return mixed[] tuple of (value, type)
* @psalm-return array{0: mixed, 1: mixed}
*/
private function resolveParameterValue(Parameter $parameter): array
{
if ($parameter->typeWasSpecified()) {
return [$parameter->getValue(), $parameter->getType()];
}
$key = $parameter->getName();
$originalValue = $parameter->getValue();
$value = $originalValue;
$rsm = $this->getResultSetMapping();
assert($rsm !== null);
if ($value instanceof ClassMetadata && isset($rsm->metadataParameterMapping[$key])) {
$value = $value->getMetadataValue($rsm->metadataParameterMapping[$key]);
}
if ($value instanceof ClassMetadata && isset($rsm->discriminatorParameters[$key])) {
$value = array_keys(HierarchyDiscriminatorResolver::resolveDiscriminatorsForClass($value, $this->_em));
}
$processedValue = $this->processParameterValue($value);
return [
$processedValue,
$originalValue === $processedValue
? $parameter->getType()
: ParameterTypeInferer::inferType($processedValue),
];
}
/**
* Defines a cache driver to be used for caching queries.
*
* @param Cache|null $queryCache Cache driver.
*
* @return self This query instance.
*/
public function setQueryCacheDriver($queryCache): self
{
$this->queryCache = $queryCache;
return $this;
}
/**
* Defines whether the query should make use of a query cache, if available.
*
* @param bool $bool
*
* @return self This query instance.
*/
public function useQueryCache($bool): self
{
$this->useQueryCache = $bool;
return $this;
}
/**
* Returns the cache driver used for query caching.
*
* @return Cache|null The cache driver used for query caching or NULL, if
* this Query does not use query caching.
*/
public function getQueryCacheDriver(): ?Cache
{
if ($this->queryCache) {
return $this->queryCache;
}
return $this->_em->getConfiguration()->getQueryCacheImpl();
}
/**
* Defines how long the query cache will be active before expire.
*
* @param int $timeToLive How long the cache entry is valid.
*
* @return self This query instance.
*/
public function setQueryCacheLifetime($timeToLive): self
{
if ($timeToLive !== null) {
$timeToLive = (int) $timeToLive;
}
$this->queryCacheTTL = $timeToLive;
return $this;
}
/**
* Retrieves the lifetime of resultset cache.
*/
public function getQueryCacheLifetime(): ?int
{
return $this->queryCacheTTL;
}
/**
* Defines if the query cache is active or not.
*
* @param bool $expire Whether or not to force query cache expiration.
*
* @return self This query instance.
*/
public function expireQueryCache($expire = true): self
{
$this->expireQueryCache = $expire;
return $this;
}
/**
* Retrieves if the query cache is active or not.
*/
public function getExpireQueryCache(): bool
{
return $this->expireQueryCache;
}
/**
* @override
*/
public function free(): void
{
parent::free();
$this->dql = null;
$this->_state = self::STATE_CLEAN;
}
/**
* Sets a DQL query string.
*
* @param string $dqlQuery DQL Query.
*/
public function setDQL($dqlQuery): self
{
if ($dqlQuery !== null) {
$this->dql = $dqlQuery;
$this->_state = self::STATE_DIRTY;
}
return $this;
}
/**
* Returns the DQL query that is represented by this query object.
*/
public function getDQL(): ?string
{
return $this->dql;
}
/**
* Returns the state of this query object
* By default the type is Doctrine_ORM_Query_Abstract::STATE_CLEAN but if it appears any unprocessed DQL
* part, it is switched to Doctrine_ORM_Query_Abstract::STATE_DIRTY.
*
* @see AbstractQuery::STATE_CLEAN
* @see AbstractQuery::STATE_DIRTY
*
* @return int The query state.
*/
public function getState(): int
{
return $this->_state;
}
/**
* Method to check if an arbitrary piece of DQL exists
*
* @param string $dql Arbitrary piece of DQL to check for.
*/
public function contains($dql): bool
{
return stripos($this->getDQL(), $dql) !== false;
}
/**
* Sets the position of the first result to retrieve (the "offset").
*
* @param int|null $firstResult The first result to return.
*
* @return self This query object.
*/
public function setFirstResult($firstResult): self
{
$this->firstResult = $firstResult;
$this->_state = self::STATE_DIRTY;
return $this;
}
/**
* Gets the position of the first result the query object was set to retrieve (the "offset").
* Returns NULL if {@link setFirstResult} was not applied to this query.
*
* @return int|null The position of the first result.
*/
public function getFirstResult(): ?int
{
return $this->firstResult;
}
/**
* Sets the maximum number of results to retrieve (the "limit").
*
* @param int|null $maxResults
*
* @return self This query object.
*/
public function setMaxResults($maxResults): self
{
$this->maxResults = $maxResults;
$this->_state = self::STATE_DIRTY;
return $this;
}
/**
* Gets the maximum number of results the query object was set to retrieve (the "limit").
* Returns NULL if {@link setMaxResults} was not applied to this query.
*
* @return int|null Maximum number of results.
*/
public function getMaxResults(): ?int
{
return $this->maxResults;
}
/**
* Executes the query and returns an IterableResult that can be used to incrementally
* iterated over the result.
*
* @deprecated
*
* @param ArrayCollection|mixed[]|null $parameters The query parameters.
* @param string|int $hydrationMode The hydration mode to use.
* @psalm-param ArrayCollection<int, Parameter>|array<string, mixed>|null $parameters
*/
public function iterate($parameters = null, $hydrationMode = self::HYDRATE_OBJECT): IterableResult
{
$this->setHint(self::HINT_INTERNAL_ITERATION, true);
return parent::iterate($parameters, $hydrationMode);
}
/** {@inheritDoc} */
public function toIterable(iterable $parameters = [], $hydrationMode = self::HYDRATE_OBJECT): iterable
{
$this->setHint(self::HINT_INTERNAL_ITERATION, true);
return parent::toIterable($parameters, $hydrationMode);
}
/**
* {@inheritdoc}
*/
public function setHint($name, $value): self
{
$this->_state = self::STATE_DIRTY;
return parent::setHint($name, $value);
}
/**
* {@inheritdoc}
*/
public function setHydrationMode($hydrationMode): self
{
$this->_state = self::STATE_DIRTY;
return parent::setHydrationMode($hydrationMode);
}
/**
* Set the lock mode for this Query.
*
* @see \Doctrine\DBAL\LockMode
*
* @param int $lockMode
*
* @throws TransactionRequiredException
*/
public function setLockMode($lockMode): self
{
if (in_array($lockMode, [LockMode::NONE, LockMode::PESSIMISTIC_READ, LockMode::PESSIMISTIC_WRITE], true)) {
if (! $this->_em->getConnection()->isTransactionActive()) {
throw TransactionRequiredException::transactionRequired();
}
}
$this->setHint(self::HINT_LOCK_MODE, $lockMode);
return $this;
}
/**
* Get the current lock mode for this query.
*
* @return int|null The current lock mode of this query or NULL if no specific lock mode is set.
*/
public function getLockMode(): ?int
{
$lockMode = $this->getHint(self::HINT_LOCK_MODE);
if ($lockMode === false) {
return null;
}
return $lockMode;
}
/**
* Generate a cache id for the query cache - reusing the Result-Cache-Id generator.
*/
protected function getQueryCacheId(): string
{
ksort($this->_hints);
$platform = $this->getEntityManager()
->getConnection()
->getDatabasePlatform()
->getName();
return md5(
$this->getDQL() . serialize($this->_hints) .
'&platform=' . $platform .
($this->_em->hasFilters() ? $this->_em->getFilters()->getHash() : '') .
'&firstResult=' . $this->firstResult . '&maxResult=' . $this->maxResults .
'&hydrationMode=' . $this->_hydrationMode . '&types=' . serialize($this->parsedTypes) . 'DOCTRINE_QUERY_CACHE_SALT'
);
}
protected function getHash(): string
{
return sha1(parent::getHash() . '-' . $this->firstResult . '-' . $this->maxResults);
}
/**
* Cleanup Query resource when clone is called.
*/
public function __clone()
{
parent::__clone();
$this->_state = self::STATE_DIRTY;
}
}

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