615 lines
16 KiB
PHP
615 lines
16 KiB
PHP
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<?php
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/*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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namespace Doctrine\ORM;
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use Doctrine\DBAL\LockMode,
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Doctrine\ORM\Query\Parser,
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Doctrine\ORM\Query\QueryException;
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/**
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* A Query object represents a DQL query.
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*
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* @since 1.0
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* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
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* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
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* @author Roman Borschel <roman@code-factory.org>
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*/
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final class Query extends AbstractQuery
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{
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/* Query STATES */
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/**
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* A query object is in CLEAN state when it has NO unparsed/unprocessed DQL parts.
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*/
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const STATE_CLEAN = 1;
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/**
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* A query object is in state DIRTY when it has DQL parts that have not yet been
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* parsed/processed. This is automatically defined as DIRTY when addDqlQueryPart
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* is called.
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*/
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const STATE_DIRTY = 2;
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/* Query HINTS */
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/**
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* The refresh hint turns any query into a refresh query with the result that
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* any local changes in entities are overridden with the fetched values.
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*
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* @var string
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*/
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const HINT_REFRESH = 'doctrine.refresh';
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/**
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* Internal hint: is set to the proxy entity that is currently triggered for loading
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*
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* @var string
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*/
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const HINT_REFRESH_ENTITY = 'doctrine.refresh.entity';
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/**
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* The forcePartialLoad query hint forces a particular query to return
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* partial objects.
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*
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* @var string
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* @todo Rename: HINT_OPTIMIZE
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*/
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const HINT_FORCE_PARTIAL_LOAD = 'doctrine.forcePartialLoad';
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/**
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* The includeMetaColumns query hint causes meta columns like foreign keys and
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* discriminator columns to be selected and returned as part of the query result.
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*
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* This hint does only apply to non-object queries.
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*
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* @var string
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*/
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const HINT_INCLUDE_META_COLUMNS = 'doctrine.includeMetaColumns';
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/**
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* An array of class names that implement \Doctrine\ORM\Query\TreeWalker and
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* are iterated and executed after the DQL has been parsed into an AST.
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*
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* @var string
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*/
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const HINT_CUSTOM_TREE_WALKERS = 'doctrine.customTreeWalkers';
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/**
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* A string with a class name that implements \Doctrine\ORM\Query\TreeWalker
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* and is used for generating the target SQL from any DQL AST tree.
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*
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* @var string
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*/
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const HINT_CUSTOM_OUTPUT_WALKER = 'doctrine.customOutputWalker';
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//const HINT_READ_ONLY = 'doctrine.readOnly';
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/**
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* @var string
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*/
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const HINT_INTERNAL_ITERATION = 'doctrine.internal.iteration';
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/**
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* @var string
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*/
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const HINT_LOCK_MODE = 'doctrine.lockMode';
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/**
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* @var integer $_state The current state of this query.
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*/
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private $_state = self::STATE_CLEAN;
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/**
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* @var string $_dql Cached DQL query.
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*/
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private $_dql = null;
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/**
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* @var \Doctrine\ORM\Query\ParserResult The parser result that holds DQL => SQL information.
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*/
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private $_parserResult;
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/**
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* @var integer The first result to return (the "offset").
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*/
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private $_firstResult = null;
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/**
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* @var integer The maximum number of results to return (the "limit").
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*/
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private $_maxResults = null;
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/**
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* @var CacheDriver The cache driver used for caching queries.
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*/
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private $_queryCache;
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/**
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* @var boolean Boolean value that indicates whether or not expire the query cache.
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*/
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private $_expireQueryCache = false;
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/**
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* @var int Query Cache lifetime.
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*/
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private $_queryCacheTTL;
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/**
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* @var boolean Whether to use a query cache, if available. Defaults to TRUE.
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*/
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private $_useQueryCache = true;
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// End of Caching Stuff
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/**
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* Initializes a new Query instance.
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*
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* @param \Doctrine\ORM\EntityManager $entityManager
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*/
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/*public function __construct(EntityManager $entityManager)
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{
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parent::__construct($entityManager);
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}*/
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/**
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* Gets the SQL query/queries that correspond to this DQL query.
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*
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* @return mixed The built sql query or an array of all sql queries.
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* @override
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*/
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public function getSQL()
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{
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return $this->_parse()->getSQLExecutor()->getSQLStatements();
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}
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/**
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* Returns the corresponding AST for this DQL query.
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*
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* @return \Doctrine\ORM\Query\AST\SelectStatement |
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* \Doctrine\ORM\Query\AST\UpdateStatement |
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* \Doctrine\ORM\Query\AST\DeleteStatement
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*/
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public function getAST()
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{
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$parser = new Parser($this);
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return $parser->getAST();
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}
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/**
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* Parses the DQL query, if necessary, and stores the parser result.
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*
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* Note: Populates $this->_parserResult as a side-effect.
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*
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* @return \Doctrine\ORM\Query\ParserResult
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*/
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private function _parse()
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{
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// Return previous parser result if the query and the filter collection are both clean
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if ($this->_state === self::STATE_CLEAN
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&& $this->_em->isFiltersStateClean()
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) {
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return $this->_parserResult;
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}
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$this->_state = self::STATE_CLEAN;
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// Check query cache.
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if ( ! ($this->_useQueryCache && ($queryCache = $this->getQueryCacheDriver()))) {
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$parser = new Parser($this);
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$this->_parserResult = $parser->parse();
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return $this->_parserResult;
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}
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$hash = $this->_getQueryCacheId();
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$cached = $this->_expireQueryCache ? false : $queryCache->fetch($hash);
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if ($cached !== false) {
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// Cache hit.
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$this->_parserResult = $cached;
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return $this->_parserResult;
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}
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// Cache miss.
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$parser = new Parser($this);
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$this->_parserResult = $parser->parse();
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$queryCache->save($hash, $this->_parserResult, $this->_queryCacheTTL);
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return $this->_parserResult;
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}
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/**
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* {@inheritdoc}
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*/
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protected function _doExecute()
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{
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$executor = $this->_parse()->getSqlExecutor();
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if ($this->_queryCacheProfile) {
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$executor->setQueryCacheProfile($this->_queryCacheProfile);
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}
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// Prepare parameters
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$paramMappings = $this->_parserResult->getParameterMappings();
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if (count($paramMappings) != count($this->_params)) {
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throw QueryException::invalidParameterNumber();
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}
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list($sqlParams, $types) = $this->processParameterMappings($paramMappings);
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if ($this->_resultSetMapping === null) {
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$this->_resultSetMapping = $this->_parserResult->getResultSetMapping();
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}
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return $executor->execute($this->_em->getConnection(), $sqlParams, $types);
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}
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/**
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* Processes query parameter mappings
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*
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* @param array $paramMappings
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* @return array
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*/
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private function processParameterMappings($paramMappings)
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{
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$sqlParams = $types = array();
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foreach ($this->_params as $key => $value) {
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if ( ! isset($paramMappings[$key])) {
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throw QueryException::unknownParameter($key);
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}
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if (isset($this->_paramTypes[$key])) {
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foreach ($paramMappings[$key] as $position) {
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$types[$position] = $this->_paramTypes[$key];
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}
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}
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$sqlPositions = $paramMappings[$key];
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// optimized multi value sql positions away for now, they are not allowed in DQL anyways.
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$value = array($value);
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$countValue = count($value);
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for ($i = 0, $l = count($sqlPositions); $i < $l; $i++) {
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$sqlParams[$sqlPositions[$i]] = $value[($i % $countValue)];
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}
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}
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if (count($sqlParams) != count($types)) {
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throw QueryException::parameterTypeMissmatch();
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}
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if ($sqlParams) {
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ksort($sqlParams);
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$sqlParams = array_values($sqlParams);
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ksort($types);
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$types = array_values($types);
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}
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return array($sqlParams, $types);
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}
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/**
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* Defines a cache driver to be used for caching queries.
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*
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* @param Doctrine_Cache_Interface|null $driver Cache driver
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* @return Query This query instance.
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*/
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public function setQueryCacheDriver($queryCache)
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{
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$this->_queryCache = $queryCache;
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return $this;
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}
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/**
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* Defines whether the query should make use of a query cache, if available.
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*
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* @param boolean $bool
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* @return @return Query This query instance.
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*/
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public function useQueryCache($bool)
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{
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$this->_useQueryCache = $bool;
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return $this;
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}
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/**
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* Returns the cache driver used for query caching.
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*
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* @return CacheDriver The cache driver used for query caching or NULL, if this
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* Query does not use query caching.
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*/
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public function getQueryCacheDriver()
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{
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if ($this->_queryCache) {
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return $this->_queryCache;
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}
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return $this->_em->getConfiguration()->getQueryCacheImpl();
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}
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/**
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* Defines how long the query cache will be active before expire.
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*
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* @param integer $timeToLive How long the cache entry is valid
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* @return Query This query instance.
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*/
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public function setQueryCacheLifetime($timeToLive)
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{
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if ($timeToLive !== null) {
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$timeToLive = (int) $timeToLive;
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}
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$this->_queryCacheTTL = $timeToLive;
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return $this;
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}
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/**
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* Retrieves the lifetime of resultset cache.
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*
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* @return int
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*/
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public function getQueryCacheLifetime()
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{
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return $this->_queryCacheTTL;
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}
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/**
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* Defines if the query cache is active or not.
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*
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* @param boolean $expire Whether or not to force query cache expiration.
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* @return Query This query instance.
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*/
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public function expireQueryCache($expire = true)
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{
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$this->_expireQueryCache = $expire;
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return $this;
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}
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/**
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* Retrieves if the query cache is active or not.
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*
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* @return bool
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*/
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public function getExpireQueryCache()
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{
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return $this->_expireQueryCache;
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}
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/**
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* @override
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*/
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public function free()
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{
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parent::free();
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$this->_dql = null;
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$this->_state = self::STATE_CLEAN;
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}
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/**
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* Sets a DQL query string.
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*
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* @param string $dqlQuery DQL Query
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|
|
* @return \Doctrine\ORM\AbstractQuery
|
||
|
|
*/
|
||
|
|
public function setDQL($dqlQuery)
|
||
|
|
{
|
||
|
|
if ($dqlQuery !== null) {
|
||
|
|
$this->_dql = $dqlQuery;
|
||
|
|
$this->_state = self::STATE_DIRTY;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the DQL query that is represented by this query object.
|
||
|
|
*
|
||
|
|
* @return string DQL query
|
||
|
|
*/
|
||
|
|
public function getDQL()
|
||
|
|
{
|
||
|
|
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 integer Return the query state
|
||
|
|
*/
|
||
|
|
public function getState()
|
||
|
|
{
|
||
|
|
return $this->_state;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Method to check if an arbitrary piece of DQL exists
|
||
|
|
*
|
||
|
|
* @param string $dql Arbitrary piece of DQL to check for
|
||
|
|
* @return boolean
|
||
|
|
*/
|
||
|
|
public function contains($dql)
|
||
|
|
{
|
||
|
|
return stripos($this->getDQL(), $dql) === false ? false : true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the position of the first result to retrieve (the "offset").
|
||
|
|
*
|
||
|
|
* @param integer $firstResult The first result to return.
|
||
|
|
* @return Query This query object.
|
||
|
|
*/
|
||
|
|
public function setFirstResult($firstResult)
|
||
|
|
{
|
||
|
|
$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 integer The position of the first result.
|
||
|
|
*/
|
||
|
|
public function getFirstResult()
|
||
|
|
{
|
||
|
|
return $this->_firstResult;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the maximum number of results to retrieve (the "limit").
|
||
|
|
*
|
||
|
|
* @param integer $maxResults
|
||
|
|
* @return Query This query object.
|
||
|
|
*/
|
||
|
|
public function setMaxResults($maxResults)
|
||
|
|
{
|
||
|
|
$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 integer Maximum number of results.
|
||
|
|
*/
|
||
|
|
public function getMaxResults()
|
||
|
|
{
|
||
|
|
return $this->_maxResults;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Executes the query and returns an IterableResult that can be used to incrementally
|
||
|
|
* iterated over the result.
|
||
|
|
*
|
||
|
|
* @param array $params The query parameters.
|
||
|
|
* @param integer $hydrationMode The hydration mode to use.
|
||
|
|
* @return \Doctrine\ORM\Internal\Hydration\IterableResult
|
||
|
|
*/
|
||
|
|
public function iterate(array $params = array(), $hydrationMode = self::HYDRATE_OBJECT)
|
||
|
|
{
|
||
|
|
$this->setHint(self::HINT_INTERNAL_ITERATION, true);
|
||
|
|
|
||
|
|
return parent::iterate($params, $hydrationMode);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritdoc}
|
||
|
|
*/
|
||
|
|
public function setHint($name, $value)
|
||
|
|
{
|
||
|
|
$this->_state = self::STATE_DIRTY;
|
||
|
|
|
||
|
|
return parent::setHint($name, $value);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritdoc}
|
||
|
|
*/
|
||
|
|
public function setHydrationMode($hydrationMode)
|
||
|
|
{
|
||
|
|
$this->_state = self::STATE_DIRTY;
|
||
|
|
|
||
|
|
return parent::setHydrationMode($hydrationMode);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the lock mode for this Query.
|
||
|
|
*
|
||
|
|
* @see \Doctrine\DBAL\LockMode
|
||
|
|
* @param int $lockMode
|
||
|
|
* @return Query
|
||
|
|
*/
|
||
|
|
public function setLockMode($lockMode)
|
||
|
|
{
|
||
|
|
if ($lockMode === LockMode::PESSIMISTIC_READ || $lockMode === LockMode::PESSIMISTIC_WRITE) {
|
||
|
|
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
|
||
|
|
*/
|
||
|
|
public function getLockMode()
|
||
|
|
{
|
||
|
|
$lockMode = $this->getHint(self::HINT_LOCK_MODE);
|
||
|
|
|
||
|
|
if ( ! $lockMode) {
|
||
|
|
return LockMode::NONE;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $lockMode;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Generate a cache id for the query cache - reusing the Result-Cache-Id generator.
|
||
|
|
*
|
||
|
|
* The query cache
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
protected function _getQueryCacheId()
|
||
|
|
{
|
||
|
|
ksort($this->_hints);
|
||
|
|
|
||
|
|
return md5(
|
||
|
|
$this->getDql() . var_export($this->_hints, true) .
|
||
|
|
($this->_em->hasFilters() ? $this->_em->getFilters()->getHash() : '') .
|
||
|
|
'&firstResult=' . $this->_firstResult . '&maxResult=' . $this->_maxResults .
|
||
|
|
'&hydrationMode='.$this->_hydrationMode.'DOCTRINE_QUERY_CACHE_SALT'
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Cleanup Query resource when clone is called.
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function __clone()
|
||
|
|
{
|
||
|
|
parent::__clone();
|
||
|
|
|
||
|
|
$this->_state = self::STATE_DIRTY;
|
||
|
|
}
|
||
|
|
}
|