2432 lines
77 KiB
PHP
2432 lines
77 KiB
PHP
<?php
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/*
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* $Id$
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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\Query;
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use Doctrine\Common\DoctrineException,
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Doctrine\ORM\Query,
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Doctrine\ORM\Query\AST,
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Doctrine\ORM\Query\Exec;
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/**
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* An LL(*) parser for the context-free grammar of the Doctrine Query Language.
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* Parses a DQL query, reports any errors in it, and generates an AST.
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*
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* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
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* @author Janne Vanhala <jpvanhal@cc.hut.fi>
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* @author Roman Borschel <roman@code-factory.org>
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @link http://www.doctrine-project.org
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* @since 2.0
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* @version $Revision$
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*/
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class Parser
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{
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/** Maps registered string function names to class names. */
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private static $_STRING_FUNCTIONS = array(
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'concat' => 'Doctrine\ORM\Query\AST\Functions\ConcatFunction',
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'substring' => 'Doctrine\ORM\Query\AST\Functions\SubstringFunction',
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'trim' => 'Doctrine\ORM\Query\AST\Functions\TrimFunction',
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'lower' => 'Doctrine\ORM\Query\AST\Functions\LowerFunction',
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'upper' => 'Doctrine\ORM\Query\AST\Functions\UpperFunction'
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);
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/** Maps registered numeric function names to class names. */
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private static $_NUMERIC_FUNCTIONS = array(
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'length' => 'Doctrine\ORM\Query\AST\Functions\LengthFunction',
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'locate' => 'Doctrine\ORM\Query\AST\Functions\LocateFunction',
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'abs' => 'Doctrine\ORM\Query\AST\Functions\AbsFunction',
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'sqrt' => 'Doctrine\ORM\Query\AST\Functions\SqrtFunction',
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'mod' => 'Doctrine\ORM\Query\AST\Functions\ModFunction',
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'size' => 'Doctrine\ORM\Query\AST\Functions\SizeFunction'
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);
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/** Maps registered datetime function names to class names. */
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private static $_DATETIME_FUNCTIONS = array(
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'current_date' => 'Doctrine\ORM\Query\AST\Functions\CurrentDateFunction',
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'current_time' => 'Doctrine\ORM\Query\AST\Functions\CurrentTimeFunction',
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'current_timestamp' => 'Doctrine\ORM\Query\AST\Functions\CurrentTimestampFunction'
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);
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/**
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* Path expressions that were encountered during parsing of SelectExpressions
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* and still need to be validated.
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*
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* @var array
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*/
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private $_deferredPathExpressionStacks = array();
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/**
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* The lexer.
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*
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* @var Doctrine\ORM\Query\Lexer
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*/
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private $_lexer;
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/**
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* The parser result.
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*
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* @var Doctrine\ORM\Query\ParserResult
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*/
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private $_parserResult;
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/**
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* The EntityManager.
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*
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* @var EnityManager
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*/
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private $_em;
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/**
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* The Query to parse.
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*
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* @var Query
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*/
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private $_query;
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/**
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* Map of declared query components in the parsed query.
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*
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* @var array
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*/
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private $_queryComponents = array();
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/**
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* Keeps the nesting level of defined ResultVariables
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*
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* @var integer
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*/
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private $_nestingLevel = 0;
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/**
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* Tree walker chain
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*
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* @var TreeWalker
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*/
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private $_treeWalker = 'Doctrine\ORM\Query\SqlWalker';
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/**
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* Creates a new query parser object.
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*
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* @param Query $query The Query to parse.
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*/
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public function __construct(Query $query)
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{
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$this->_query = $query;
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$this->_em = $query->getEntityManager();
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$this->_lexer = new Lexer($query->getDql());
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$this->_parserResult = new ParserResult();
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}
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/**
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* Sets the custom tree walker.
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*
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* @param string $treeWalker
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*/
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public function setTreeWalker($treeWalker)
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{
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$this->_treeWalker = $treeWalker;
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}
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/**
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* Gets the lexer used by the parser.
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*
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* @return Doctrine\ORM\Query\Lexer
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*/
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public function getLexer()
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{
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return $this->_lexer;
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}
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/**
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* Gets the ParserResult that is being filled with information during parsing.
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*
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* @return Doctrine\ORM\Query\ParserResult
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*/
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public function getParserResult()
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{
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return $this->_parserResult;
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}
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/**
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* Gets the EntityManager used by the parser.
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*
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* @return EntityManager
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*/
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public function getEntityManager()
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{
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return $this->_em;
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}
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/**
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* Registers a custom function that returns strings.
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*
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* @param string $name The function name.
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* @param string $class The class name of the function implementation.
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*/
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public static function registerStringFunction($name, $class)
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{
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self::$_STRING_FUNCTIONS[$name] = $class;
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}
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/**
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* Registers a custom function that returns numerics.
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*
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* @param string $name The function name.
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* @param string $class The class name of the function implementation.
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*/
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public static function registerNumericFunction($name, $class)
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{
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self::$_NUMERIC_FUNCTIONS[$name] = $class;
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}
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/**
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* Registers a custom function that returns date/time values.
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*
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* @param string $name The function name.
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* @param string $class The class name of the function implementation.
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*/
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public static function registerDatetimeFunction($name, $class)
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{
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self::$_DATETIME_FUNCTIONS[$name] = $class;
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}
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/**
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* Attempts to match the given token with the current lookahead token.
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*
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* If they match, updates the lookahead token; otherwise raises a syntax
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* error.
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*
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* @param int|string token type or value
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* @return bool True, if tokens match; false otherwise.
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*/
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public function match($token)
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{
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$key = (is_string($token)) ? 'value' : 'type';
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if ( ! ($this->_lexer->lookahead[$key] === $token))
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$this->syntaxError($this->_lexer->getLiteral($token));
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$this->_lexer->moveNext();
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}
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/**
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* Free this parser enabling it to be reused
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*
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* @param boolean $deep Whether to clean peek and reset errors
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* @param integer $position Position to reset
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*/
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public function free($deep = false, $position = 0)
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{
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// WARNING! Use this method with care. It resets the scanner!
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$this->_lexer->resetPosition($position);
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// Deep = true cleans peek and also any previously defined errors
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if ($deep) {
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$this->_lexer->resetPeek();
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}
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$this->_lexer->token = null;
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$this->_lexer->lookahead = null;
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}
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/**
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* Parses a query string.
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*
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* @return ParserResult
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*/
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public function parse()
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{
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// Parse & build AST
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$AST = $this->QueryLanguage();
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// Check for end of string
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if ($this->_lexer->lookahead !== null) {
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$this->syntaxError('end of string');
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}
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// Create TreeWalker who creates the SQL from the AST
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$treeWalker = new $this->_treeWalker(
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$this->_query, $this->_parserResult, $this->_queryComponents
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);
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// Assign an SQL executor to the parser result
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$this->_parserResult->setSqlExecutor($treeWalker->getExecutor($AST));
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return $this->_parserResult;
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}
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/**
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* Generates a new syntax error.
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*
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* @param string $expected Optional expected string.
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* @param array $token Optional token.
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*
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* @throws \Doctrine\ORM\Query\QueryException
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*/
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public function syntaxError($expected = '', $token = null)
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{
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if ($token === null) {
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$token = $this->_lexer->lookahead;
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}
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$tokenPos = (isset($token['position'])) ? $token['position'] : '-1';
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$message = "line 0, col {$tokenPos}: Error: ";
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if ($expected !== '') {
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$message .= "Expected '{$expected}', got ";
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} else {
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$message .= 'Unexpected ';
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}
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if ($this->_lexer->lookahead === null) {
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$message .= 'end of string.';
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} else {
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$message .= "'{$this->_lexer->lookahead['value']}'";
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}
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throw \Doctrine\ORM\Query\QueryException::syntaxError($message);
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}
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/**
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* Generates a new semantical error.
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*
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* @param string $message Optional message.
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* @param array $token Optional token.
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*
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* @throws \Doctrine\ORM\Query\QueryException
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*/
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public function semanticalError($message = '', $token = null)
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{
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if ($token === null) {
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$token = $this->_lexer->lookahead;
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}
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// Find a position of a final word to display in error string
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$dql = $this->_query->getDql();
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$pos = strpos($dql, ' ', $token['position'] + 10);
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$length = ($pos !== false) ? $pos - $token['position'] : 10;
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// Building informative message
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$message = 'line 0, col ' . (isset($token['position']) ? $token['position'] : '-1')
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. " near '" . substr($dql, $token['position'], $length) . "': Error: " . $message;
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throw \Doctrine\ORM\Query\QueryException::semanticalError($message);
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}
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/**
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* Peeks beyond the specified token and returns the first token after that one.
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*
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* @param array $token
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* @return array
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*/
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private function _peekBeyond($token)
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{
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$peek = $this->_lexer->peek();
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while ($peek['value'] != $token) {
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$peek = $this->_lexer->peek();
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}
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$peek = $this->_lexer->peek();
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$this->_lexer->resetPeek();
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return $peek;
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}
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/**
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* Checks if the next-next (after lookahead) token starts a function.
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*
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* @return boolean TRUE if the next-next tokens start a function, FALSE otherwise.
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*/
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private function _isFunction()
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{
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$peek = $this->_lexer->peek();
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$nextpeek = $this->_lexer->peek();
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$this->_lexer->resetPeek();
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// We deny the COUNT(SELECT * FROM User u) here. COUNT won't be considered a function
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return ($peek['value'] === '(' && $nextpeek['type'] !== Lexer::T_SELECT);
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}
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/**
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* Checks whether the function with the given name is a string function
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* (a function that returns strings).
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*
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* @return boolean TRUE if the token type is a string function, FALSE otherwise.
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*/
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private function _isStringFunction($funcName)
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{
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return isset(self::$_STRING_FUNCTIONS[strtolower($funcName)]);
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}
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/**
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* Checks whether the function with the given name is a numeric function
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* (a function that returns numerics).
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*
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* @return boolean TRUE if the token type is a numeric function, FALSE otherwise.
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*/
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private function _isNumericFunction($funcName)
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{
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return isset(self::$_NUMERIC_FUNCTIONS[strtolower($funcName)]);
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}
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/**
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* Checks whether the function with the given name is a datetime function
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* (a function that returns date/time values).
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*
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* @return boolean TRUE if the token type is a datetime function, FALSE otherwise.
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*/
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private function _isDatetimeFunction($funcName)
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{
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return isset(self::$_DATETIME_FUNCTIONS[strtolower($funcName)]);
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}
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/**
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* Checks whether the given token type indicates an aggregate function.
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*
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* @return boolean TRUE if the token type is an aggregate function, FALSE otherwise.
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*/
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private function _isAggregateFunction($tokenType)
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{
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return $tokenType == Lexer::T_AVG || $tokenType == Lexer::T_MIN ||
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$tokenType == Lexer::T_MAX || $tokenType == Lexer::T_SUM ||
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$tokenType == Lexer::T_COUNT;
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}
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/**
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* Checks whether the current lookahead token of the lexer has the type
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* T_ALL, T_ANY or T_SOME.
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*
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* @return boolean
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*/
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private function _isNextAllAnySome()
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{
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return $this->_lexer->lookahead['type'] === Lexer::T_ALL ||
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$this->_lexer->lookahead['type'] === Lexer::T_ANY ||
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$this->_lexer->lookahead['type'] === Lexer::T_SOME;
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}
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/**
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* Checks whether the next 2 tokens start a subselect.
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*
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* @return boolean TRUE if the next 2 tokens start a subselect, FALSE otherwise.
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*/
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private function _isSubselect()
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{
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$la = $this->_lexer->lookahead;
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$next = $this->_lexer->glimpse();
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return ($la['value'] === '(' && $next['type'] === Lexer::T_SELECT);
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}
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/**
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* Begins a new stack of deferred path expressions.
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*/
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private function _beginDeferredPathExpressionStack()
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{
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$this->_deferredPathExpressionStacks[] = array();
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}
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/**
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* Processes the topmost stack of deferred path expressions.
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*/
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private function _processDeferredPathExpressionStack()
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{
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$exprStack = array_pop($this->_deferredPathExpressionStacks);
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foreach ($exprStack as $item) {
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$this->_validatePathExpression($item['pathExpression'], $item['nestingLevel']);
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}
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}
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/**
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* Validates that the given <tt>PathExpression</tt> is a semantically correct for grammar rules:
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*
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* AssociationPathExpression ::= CollectionValuedPathExpression | SingleValuedAssociationPathExpression
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* SingleValuedPathExpression ::= StateFieldPathExpression | SingleValuedAssociationPathExpression
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* StateFieldPathExpression ::= IdentificationVariable "." StateField | SingleValuedAssociationPathExpression "." StateField
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* SingleValuedAssociationPathExpression ::= IdentificationVariable "." {SingleValuedAssociationField "."}* SingleValuedAssociationField
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* CollectionValuedPathExpression ::= IdentificationVariable "." {SingleValuedAssociationField "."}* CollectionValuedAssociationField
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*
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* @param PathExpression $pathExpression
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* @param integer $nestingLevel
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* @return integer
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*/
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private function _validatePathExpression(AST\PathExpression $pathExpression, $nestingLevel)
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{
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$identificationVariable = $pathExpression->getIdentificationVariable();
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$this->_validateIdentificationVariable($identificationVariable, $nestingLevel);
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$class = $this->_queryComponents[$identificationVariable]['metadata'];
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$stateField = $collectionField = null;
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foreach ($pathExpression->getParts() as $field) {
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// Check if it is not in a state field
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if ($stateField !== null) {
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$this->semanticalError('Cannot navigate through state field named ' . $stateField);
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}
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// Check if it is not a collection field
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if ($collectionField !== null) {
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$this->semanticalError('Can not navigate through collection-valued field named ' . $collectionField);
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}
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// Check if field exists
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if ( ! isset($class->associationMappings[$field]) && ! isset($class->fieldMappings[$field])) {
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$this->semanticalError('Class ' . $class->name . ' has no field named ' . $field);
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}
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if (isset($class->fieldMappings[$field])) {
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$stateField = $field;
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} else if ($class->associationMappings[$field]->isOneToOne()) {
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$class = $this->_em->getClassMetadata($class->associationMappings[$field]->targetEntityName);
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} else {
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$collectionField = $field;
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}
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}
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// Recognize correct expression type
|
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$expressionType = null;
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if ($stateField !== null) {
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$expressionType = AST\PathExpression::TYPE_STATE_FIELD;
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} else if ($collectionField !== null) {
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$expressionType = AST\PathExpression::TYPE_COLLECTION_VALUED_ASSOCIATION;
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} else {
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$expressionType = AST\PathExpression::TYPE_SINGLE_VALUED_ASSOCIATION;
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}
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// Validate if PathExpression is one of the expected types
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$expectedType = $pathExpression->getExpectedType();
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|
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if ( ! ($expectedType & $expressionType)) {
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// We need to recognize which was expected type(s)
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$expectedStringTypes = array();
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// Validate state field type (field/column)
|
|
if ($expectedType & AST\PathExpression::TYPE_STATE_FIELD) {
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$expectedStringTypes[] = 'StateFieldPathExpression';
|
|
}
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// Validate single valued association (*-to-one)
|
|
if ($expectedType & AST\PathExpression::TYPE_SINGLE_VALUED_ASSOCIATION) {
|
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$expectedStringTypes[] = 'SingleValuedAssociationField';
|
|
}
|
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|
|
// Validate single valued association (*-to-many)
|
|
if ($expectedType & AST\PathExpression::TYPE_COLLECTION_VALUED_ASSOCIATION) {
|
|
$expectedStringTypes[] = 'CollectionValuedAssociationField';
|
|
}
|
|
|
|
// Build the error message
|
|
$semanticalError = 'Invalid PathExpression.';
|
|
|
|
if (count($expectedStringTypes) == 1) {
|
|
$semanticalError .= ' Must be a ' . $expectedStringTypes[0] . '.';
|
|
} else {
|
|
$semanticalError .= ' ' . implode(' or ', $expectedStringTypes) . ' expected.';
|
|
}
|
|
|
|
$this->semanticalError($semanticalError);
|
|
}
|
|
|
|
// We need to force the type in PathExpression
|
|
$pathExpression->setType($expressionType);
|
|
|
|
return $expressionType;
|
|
}
|
|
|
|
/**
|
|
* Validates that the given <tt>IdentificationVariable</tt> is a semantically correct.
|
|
* It must exist in query components list.
|
|
*
|
|
* @param string $idVariable
|
|
* @param integer $nestingLevel
|
|
* @return array Query Component
|
|
*/
|
|
private function _validateIdentificationVariable($idVariable, $nestingLevel)
|
|
{
|
|
if ( ! isset($this->_queryComponents[$idVariable])) {
|
|
$this->semanticalError(
|
|
"Could not find '$idVariable' in query components"
|
|
);
|
|
}
|
|
|
|
// Validate if identification variable nesting level is lower or equal than the current one
|
|
if ($this->_queryComponents[$idVariable]['nestingLevel'] > $nestingLevel) {
|
|
$this->semanticalError(
|
|
"Query component '$idVariable' is not in the same nesting level of its declaration"
|
|
);
|
|
}
|
|
|
|
return $this->_queryComponents[$idVariable];
|
|
}
|
|
|
|
|
|
/**
|
|
* QueryLanguage ::= SelectStatement | UpdateStatement | DeleteStatement
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\SelectStatement |
|
|
* \Doctrine\ORM\Query\AST\UpdateStatement |
|
|
* \Doctrine\ORM\Query\AST\DeleteStatement
|
|
*/
|
|
public function QueryLanguage()
|
|
{
|
|
$this->_lexer->moveNext();
|
|
|
|
switch ($this->_lexer->lookahead['type']) {
|
|
case Lexer::T_SELECT:
|
|
return $this->SelectStatement();
|
|
|
|
case Lexer::T_UPDATE:
|
|
return $this->UpdateStatement();
|
|
|
|
case Lexer::T_DELETE:
|
|
return $this->DeleteStatement();
|
|
|
|
default:
|
|
$this->syntaxError('SELECT, UPDATE or DELETE');
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* SelectStatement ::= SelectClause FromClause [WhereClause] [GroupByClause] [HavingClause] [OrderByClause]
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\SelectStatement
|
|
*/
|
|
public function SelectStatement()
|
|
{
|
|
// We need to prevent semantical checks on SelectClause,
|
|
// since we do not have any IdentificationVariable yet
|
|
$this->_beginDeferredPathExpressionStack();
|
|
|
|
$selectClause = $this->SelectClause();
|
|
$fromClause = $this->FromClause();
|
|
|
|
// Activate semantical checks after this point. Process all deferred checks in pipeline
|
|
$this->_processDeferredPathExpressionStack();
|
|
|
|
$whereClause = $this->_lexer->isNextToken(Lexer::T_WHERE)
|
|
? $this->WhereClause() : null;
|
|
|
|
$groupByClause = $this->_lexer->isNextToken(Lexer::T_GROUP)
|
|
? $this->GroupByClause() : null;
|
|
|
|
$havingClause = $this->_lexer->isNextToken(Lexer::T_HAVING)
|
|
? $this->HavingClause() : null;
|
|
|
|
$orderByClause = $this->_lexer->isNextToken(Lexer::T_ORDER)
|
|
? $this->OrderByClause() : null;
|
|
|
|
return new AST\SelectStatement(
|
|
$selectClause, $fromClause, $whereClause, $groupByClause, $havingClause, $orderByClause
|
|
);
|
|
}
|
|
|
|
/**
|
|
* UpdateStatement ::= UpdateClause [WhereClause]
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\UpdateStatement
|
|
*/
|
|
public function UpdateStatement()
|
|
{
|
|
$updateStatement = new AST\UpdateStatement($this->UpdateClause());
|
|
$updateStatement->setWhereClause(
|
|
$this->_lexer->isNextToken(Lexer::T_WHERE) ? $this->WhereClause() : null
|
|
);
|
|
|
|
return $updateStatement;
|
|
}
|
|
|
|
/**
|
|
* DeleteStatement ::= DeleteClause [WhereClause]
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\DeleteStatement
|
|
*/
|
|
public function DeleteStatement()
|
|
{
|
|
$deleteStatement = new AST\DeleteStatement($this->DeleteClause());
|
|
$deleteStatement->setWhereClause(
|
|
$this->_lexer->isNextToken(Lexer::T_WHERE) ? $this->WhereClause() : null
|
|
);
|
|
|
|
return $deleteStatement;
|
|
}
|
|
|
|
|
|
/**
|
|
* IdentificationVariable ::= identifier
|
|
*
|
|
* @return string
|
|
*/
|
|
public function IdentificationVariable()
|
|
{
|
|
$this->match(Lexer::T_IDENTIFIER);
|
|
|
|
return $this->_lexer->token['value'];
|
|
}
|
|
|
|
/**
|
|
* AliasIdentificationVariable = identifier
|
|
*
|
|
* @return string
|
|
*/
|
|
public function AliasIdentificationVariable()
|
|
{
|
|
$this->match(Lexer::T_IDENTIFIER);
|
|
|
|
return $this->_lexer->token['value'];
|
|
}
|
|
|
|
/**
|
|
* AbstractSchemaName ::= identifier
|
|
*
|
|
* @return string
|
|
*/
|
|
public function AbstractSchemaName()
|
|
{
|
|
$this->match(Lexer::T_IDENTIFIER);
|
|
|
|
return $this->_lexer->token['value'];
|
|
}
|
|
|
|
/**
|
|
* ResultVariable ::= identifier
|
|
*
|
|
* @return string
|
|
*/
|
|
public function ResultVariable()
|
|
{
|
|
$this->match(Lexer::T_IDENTIFIER);
|
|
|
|
return $this->_lexer->token['value'];
|
|
}
|
|
|
|
|
|
/**
|
|
* JoinAssociationPathExpression ::= IdentificationVariable "." (CollectionValuedAssociationField | SingleValuedAssociationField)
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\JoinAssociationPathExpression
|
|
*/
|
|
public function JoinAssociationPathExpression()
|
|
{
|
|
$identificationVariable = $this->IdentificationVariable();
|
|
$this->match('.');
|
|
$this->match(Lexer::T_IDENTIFIER);
|
|
$field = $this->_lexer->token['value'];
|
|
|
|
// Validating IdentificationVariable (it was already defined previously)
|
|
$this->_validateIdentificationVariable($identificationVariable, $this->_nestingLevel);
|
|
|
|
// Validating association field (*-to-one or *-to-many)
|
|
$class = $this->_queryComponents[$identificationVariable]['metadata'];
|
|
|
|
if ( ! isset($class->associationMappings[$field])) {
|
|
$this->semanticalError('Class ' . $class->name . ' has no field named ' . $field);
|
|
}
|
|
|
|
return new AST\JoinAssociationPathExpression($identificationVariable, $field);
|
|
}
|
|
|
|
/**
|
|
* Parses an arbitrary path expression. Applies or defer semantical validation
|
|
* based on expected types.
|
|
*
|
|
* PathExpression ::= IdentificationVariable "." {identifier "."}* identifier
|
|
*
|
|
* @param integer $expectedType
|
|
* @return \Doctrine\ORM\Query\AST\PathExpression
|
|
*/
|
|
public function PathExpression($expectedType)
|
|
{
|
|
$identificationVariable = $this->IdentificationVariable();
|
|
$parts = array();
|
|
|
|
do {
|
|
$this->match('.');
|
|
$this->match(Lexer::T_IDENTIFIER);
|
|
|
|
$parts[] = $this->_lexer->token['value'];
|
|
} while ($this->_lexer->isNextToken('.'));
|
|
|
|
// Creating AST node
|
|
$pathExpr = new AST\PathExpression($expectedType, $identificationVariable, $parts);
|
|
|
|
// Defer PathExpression validation if requested to be defered
|
|
if ( ! empty($this->_deferredPathExpressionStacks)) {
|
|
$exprStack = array_pop($this->_deferredPathExpressionStacks);
|
|
$exprStack[] = array(
|
|
'pathExpression' => $pathExpr,
|
|
'nestingLevel' => $this->_nestingLevel,
|
|
);
|
|
array_push($this->_deferredPathExpressionStacks, $exprStack);
|
|
|
|
return $pathExpr;
|
|
}
|
|
|
|
// Apply PathExpression validation normally (not in defer mode)
|
|
$this->_validatePathExpression($pathExpr, $this->_nestingLevel);
|
|
|
|
return $pathExpr;
|
|
}
|
|
|
|
/**
|
|
* AssociationPathExpression ::= CollectionValuedPathExpression | SingleValuedAssociationPathExpression
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\PathExpression
|
|
*/
|
|
public function AssociationPathExpression()
|
|
{
|
|
return $this->PathExpression(
|
|
AST\PathExpression::TYPE_SINGLE_VALUED_ASSOCIATION |
|
|
AST\PathExpression::TYPE_COLLECTION_VALUED_ASSOCIATION
|
|
);
|
|
}
|
|
|
|
/**
|
|
* SingleValuedPathExpression ::= StateFieldPathExpression | SingleValuedAssociationPathExpression
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\PathExpression
|
|
*/
|
|
public function SingleValuedPathExpression()
|
|
{
|
|
return $this->PathExpression(
|
|
AST\PathExpression::TYPE_STATE_FIELD |
|
|
AST\PathExpression::TYPE_SINGLE_VALUED_ASSOCIATION
|
|
);
|
|
}
|
|
|
|
/**
|
|
* StateFieldPathExpression ::= SimpleStateFieldPathExpression | SimpleStateFieldAssociationPathExpression
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\PathExpression
|
|
*/
|
|
public function StateFieldPathExpression()
|
|
{
|
|
return $this->PathExpression(AST\PathExpression::TYPE_STATE_FIELD);
|
|
}
|
|
|
|
/**
|
|
* SingleValuedAssociationPathExpression ::= IdentificationVariable "." {SingleValuedAssociationField "."}* SingleValuedAssociationField
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\PathExpression
|
|
*/
|
|
public function SingleValuedAssociationPathExpression()
|
|
{
|
|
return $this->PathExpression(AST\PathExpression::TYPE_SINGLE_VALUED_ASSOCIATION);
|
|
}
|
|
|
|
/**
|
|
* CollectionValuedPathExpression ::= IdentificationVariable "." {SingleValuedAssociationField "."}* CollectionValuedAssociationField
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\PathExpression
|
|
*/
|
|
public function CollectionValuedPathExpression()
|
|
{
|
|
return $this->PathExpression(AST\PathExpression::TYPE_COLLECTION_VALUED_ASSOCIATION);
|
|
}
|
|
|
|
/**
|
|
* SimpleStateFieldPathExpression ::= IdentificationVariable "." StateField
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\PathExpression
|
|
*/
|
|
public function SimpleStateFieldPathExpression()
|
|
{
|
|
$pathExpression = $this->PathExpression(AST\PathExpression::TYPE_STATE_FIELD);
|
|
$parts = $pathExpression->getParts();
|
|
|
|
if (count($parts) > 1) {
|
|
$this->semanticalError(
|
|
"Invalid SimpleStateFieldPathExpression. " .
|
|
"Expected state field, got association '{$parts[0]}'."
|
|
);
|
|
}
|
|
|
|
return $pathExpression;
|
|
}
|
|
|
|
|
|
/**
|
|
* SelectClause ::= "SELECT" ["DISTINCT"] SelectExpression {"," SelectExpression}
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\SelectClause
|
|
*/
|
|
public function SelectClause()
|
|
{
|
|
$isDistinct = false;
|
|
$this->match(Lexer::T_SELECT);
|
|
|
|
// Check for DISTINCT
|
|
if ($this->_lexer->isNextToken(Lexer::T_DISTINCT)) {
|
|
$this->match(Lexer::T_DISTINCT);
|
|
$isDistinct = true;
|
|
}
|
|
|
|
// Process SelectExpressions (1..N)
|
|
$selectExpressions = array();
|
|
$selectExpressions[] = $this->SelectExpression();
|
|
|
|
while ($this->_lexer->isNextToken(',')) {
|
|
$this->match(',');
|
|
$selectExpressions[] = $this->SelectExpression();
|
|
}
|
|
|
|
return new AST\SelectClause($selectExpressions, $isDistinct);
|
|
}
|
|
|
|
/**
|
|
* SimpleSelectClause ::= "SELECT" ["DISTINCT"] SimpleSelectExpression
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\SimpleSelectClause
|
|
*/
|
|
public function SimpleSelectClause()
|
|
{
|
|
$distinct = false;
|
|
$this->match(Lexer::T_SELECT);
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_DISTINCT)) {
|
|
$this->match(Lexer::T_DISTINCT);
|
|
$distinct = true;
|
|
}
|
|
|
|
$simpleSelectClause = new AST\SimpleSelectClause($this->SimpleSelectExpression());
|
|
$simpleSelectClause->setDistinct($distinct);
|
|
|
|
return $simpleSelectClause;
|
|
}
|
|
|
|
/**
|
|
* UpdateClause ::= "UPDATE" AbstractSchemaName [["AS"] AliasIdentificationVariable] "SET" UpdateItem {"," UpdateItem}*
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\UpdateClause
|
|
*/
|
|
public function UpdateClause()
|
|
{
|
|
$this->match(Lexer::T_UPDATE);
|
|
$abstractSchemaName = $this->AbstractSchemaName();
|
|
$aliasIdentificationVariable = null;
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_AS)) {
|
|
$this->match(Lexer::T_AS);
|
|
}
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_IDENTIFIER)) {
|
|
$aliasIdentificationVariable = $this->AliasIdentificationVariable();
|
|
} else {
|
|
$aliasIdentificationVariable = $abstractSchemaName;
|
|
}
|
|
|
|
$this->match(Lexer::T_SET);
|
|
$updateItems = array();
|
|
$updateItems[] = $this->UpdateItem();
|
|
|
|
while ($this->_lexer->isNextToken(',')) {
|
|
$this->match(',');
|
|
$updateItems[] = $this->UpdateItem();
|
|
}
|
|
|
|
$classMetadata = $this->_em->getClassMetadata($abstractSchemaName);
|
|
|
|
// Building queryComponent
|
|
$queryComponent = array(
|
|
'metadata' => $classMetadata,
|
|
'parent' => null,
|
|
'relation' => null,
|
|
'map' => null,
|
|
'nestingLevel' => $this->_nestingLevel,
|
|
);
|
|
$this->_queryComponents[$aliasIdentificationVariable] = $queryComponent;
|
|
|
|
$updateClause = new AST\UpdateClause($abstractSchemaName, $updateItems);
|
|
$updateClause->setAliasIdentificationVariable($aliasIdentificationVariable);
|
|
|
|
return $updateClause;
|
|
}
|
|
|
|
/**
|
|
* DeleteClause ::= "DELETE" ["FROM"] AbstractSchemaName [["AS"] AliasIdentificationVariable]
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\DeleteClause
|
|
*/
|
|
public function DeleteClause()
|
|
{
|
|
$this->match(Lexer::T_DELETE);
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_FROM)) {
|
|
$this->match(Lexer::T_FROM);
|
|
}
|
|
|
|
$deleteClause = new AST\DeleteClause($this->AbstractSchemaName());
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_AS)) {
|
|
$this->match(Lexer::T_AS);
|
|
}
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_IDENTIFIER)) {
|
|
$deleteClause->setAliasIdentificationVariable($this->AliasIdentificationVariable());
|
|
} else {
|
|
$deleteClause->setAliasIdentificationVariable($deleteClause->getAbstractSchemaName());
|
|
}
|
|
|
|
$classMetadata = $this->_em->getClassMetadata($deleteClause->getAbstractSchemaName());
|
|
$queryComponent = array(
|
|
'metadata' => $classMetadata,
|
|
'parent' => null,
|
|
'relation' => null,
|
|
'map' => null,
|
|
'nestingLevel' => $this->_nestingLevel,
|
|
);
|
|
$this->_queryComponents[$deleteClause->getAliasIdentificationVariable()] = $queryComponent;
|
|
|
|
return $deleteClause;
|
|
}
|
|
|
|
/**
|
|
* FromClause ::= "FROM" IdentificationVariableDeclaration {"," IdentificationVariableDeclaration}*
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\FromClause
|
|
*/
|
|
public function FromClause()
|
|
{
|
|
$this->match(Lexer::T_FROM);
|
|
$identificationVariableDeclarations = array();
|
|
$identificationVariableDeclarations[] = $this->IdentificationVariableDeclaration();
|
|
|
|
while ($this->_lexer->isNextToken(',')) {
|
|
$this->match(',');
|
|
$identificationVariableDeclarations[] = $this->IdentificationVariableDeclaration();
|
|
}
|
|
|
|
return new AST\FromClause($identificationVariableDeclarations);
|
|
}
|
|
|
|
/**
|
|
* SubselectFromClause ::= "FROM" SubselectIdentificationVariableDeclaration {"," SubselectIdentificationVariableDeclaration}*
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\SubselectFromClause
|
|
*/
|
|
public function SubselectFromClause()
|
|
{
|
|
$this->match(Lexer::T_FROM);
|
|
$identificationVariables = array();
|
|
$identificationVariables[] = $this->SubselectIdentificationVariableDeclaration();
|
|
|
|
while ($this->_lexer->isNextToken(',')) {
|
|
$this->match(',');
|
|
$identificationVariables[] = $this->SubselectIdentificationVariableDeclaration();
|
|
}
|
|
|
|
return new AST\SubselectFromClause($identificationVariables);
|
|
}
|
|
|
|
/**
|
|
* WhereClause ::= "WHERE" ConditionalExpression
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\WhereClause
|
|
*/
|
|
public function WhereClause()
|
|
{
|
|
$this->match(Lexer::T_WHERE);
|
|
|
|
return new AST\WhereClause($this->ConditionalExpression());
|
|
}
|
|
|
|
/**
|
|
* HavingClause ::= "HAVING" ConditionalExpression
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\HavingClause
|
|
*/
|
|
public function HavingClause()
|
|
{
|
|
$this->match(Lexer::T_HAVING);
|
|
|
|
return new AST\HavingClause($this->ConditionalExpression());
|
|
}
|
|
|
|
/**
|
|
* GroupByClause ::= "GROUP" "BY" GroupByItem {"," GroupByItem}*
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\GroupByClause
|
|
*/
|
|
public function GroupByClause()
|
|
{
|
|
$this->match(Lexer::T_GROUP);
|
|
$this->match(Lexer::T_BY);
|
|
|
|
$groupByItems = array($this->GroupByItem());
|
|
|
|
while ($this->_lexer->isNextToken(',')) {
|
|
$this->match(',');
|
|
$groupByItems[] = $this->GroupByItem();
|
|
}
|
|
|
|
return new AST\GroupByClause($groupByItems);
|
|
}
|
|
|
|
/**
|
|
* OrderByClause ::= "ORDER" "BY" OrderByItem {"," OrderByItem}*
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\OrderByClause
|
|
*/
|
|
public function OrderByClause()
|
|
{
|
|
$this->match(Lexer::T_ORDER);
|
|
$this->match(Lexer::T_BY);
|
|
|
|
$orderByItems = array();
|
|
$orderByItems[] = $this->OrderByItem();
|
|
|
|
while ($this->_lexer->isNextToken(',')) {
|
|
$this->match(',');
|
|
$orderByItems[] = $this->OrderByItem();
|
|
}
|
|
|
|
return new AST\OrderByClause($orderByItems);
|
|
}
|
|
|
|
/**
|
|
* Subselect ::= SimpleSelectClause SubselectFromClause [WhereClause] [GroupByClause] [HavingClause] [OrderByClause]
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\Subselect
|
|
*/
|
|
public function Subselect()
|
|
{
|
|
// Increase query nesting level
|
|
$this->_nestingLevel++;
|
|
|
|
$this->_beginDeferredPathExpressionStack();
|
|
$subselect = new AST\Subselect($this->SimpleSelectClause(), $this->SubselectFromClause());
|
|
$this->_processDeferredPathExpressionStack();
|
|
|
|
$subselect->setWhereClause(
|
|
$this->_lexer->isNextToken(Lexer::T_WHERE) ? $this->WhereClause() : null
|
|
);
|
|
|
|
$subselect->setGroupByClause(
|
|
$this->_lexer->isNextToken(Lexer::T_GROUP) ? $this->GroupByClause() : null
|
|
);
|
|
|
|
$subselect->setHavingClause(
|
|
$this->_lexer->isNextToken(Lexer::T_HAVING) ? $this->HavingClause() : null
|
|
);
|
|
|
|
$subselect->setOrderByClause(
|
|
$this->_lexer->isNextToken(Lexer::T_ORDER) ? $this->OrderByClause() : null
|
|
);
|
|
|
|
// Decrease query nesting level
|
|
$this->_nestingLevel--;
|
|
|
|
return $subselect;
|
|
}
|
|
|
|
|
|
/**
|
|
* UpdateItem ::= IdentificationVariable "." {StateField | SingleValuedAssociationField} "=" NewValue
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\UpdateItem
|
|
*/
|
|
public function UpdateItem()
|
|
{
|
|
$peek = $this->_lexer->glimpse();
|
|
$identVariable = null;
|
|
|
|
if ($peek['value'] == '.') {
|
|
$identVariable = $this->IdentificationVariable();
|
|
$this->match('.');
|
|
} else {
|
|
throw QueryException::missingAliasQualifier();
|
|
}
|
|
|
|
$this->match(Lexer::T_IDENTIFIER);
|
|
$field = $this->_lexer->token['value'];
|
|
|
|
$this->match('=');
|
|
|
|
$newValue = $this->NewValue();
|
|
|
|
$updateItem = new AST\UpdateItem($field, $newValue);
|
|
$updateItem->setIdentificationVariable($identVariable);
|
|
|
|
return $updateItem;
|
|
}
|
|
|
|
/**
|
|
* GroupByItem ::= IdentificationVariable | SingleValuedPathExpression
|
|
*
|
|
* @return string | \Doctrine\ORM\Query\AST\PathExpression
|
|
*/
|
|
public function GroupByItem()
|
|
{
|
|
// We need to check if we are in a IdentificationVariable or SingleValuedPathExpression
|
|
$glimpse = $this->_lexer->glimpse();
|
|
|
|
if ($glimpse['value'] != '.') {
|
|
$identificationVariable = $this->IdentificationVariable();
|
|
|
|
// Validate if IdentificationVariable is defined
|
|
$this->_validateIdentificationVariable($identificationVariable, $this->_nestingLevel);
|
|
|
|
return $identificationVariable;
|
|
}
|
|
|
|
return $this->SingleValuedPathExpression();
|
|
}
|
|
|
|
/**
|
|
* OrderByItem ::= (ResultVariable | StateFieldPathExpression) ["ASC" | "DESC"]
|
|
*
|
|
* @todo Post 2.0 release. Support general SingleValuedPathExpression instead
|
|
* of only StateFieldPathExpression.
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\OrderByItem
|
|
*/
|
|
public function OrderByItem()
|
|
{
|
|
// We need to check if we are in a ResultVariable or StateFieldPathExpression
|
|
$glimpse = $this->_lexer->glimpse();
|
|
|
|
if ($glimpse['value'] != '.') {
|
|
$expr = $this->ResultVariable();
|
|
|
|
// Check if ResultVariable is defined in query components
|
|
$queryComponent = $this->_validateIdentificationVariable($expr, $this->_nestingLevel);
|
|
|
|
// Outer defininition used in inner subselect is not enough.
|
|
// ResultVariable exists in queryComponents, check nesting level
|
|
if ($queryComponent['nestingLevel'] != $this->_nestingLevel) {
|
|
$this->semanticalError(
|
|
"Query component '$expr' is not in the same nesting level of its declaration"
|
|
);
|
|
}
|
|
} else {
|
|
$expr = $this->StateFieldPathExpression();
|
|
}
|
|
|
|
$item = new AST\OrderByItem($expr);
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_ASC)) {
|
|
$this->match(Lexer::T_ASC);
|
|
$item->setAsc(true);
|
|
return $item;
|
|
}
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_DESC)) {
|
|
$this->match(Lexer::T_DESC);
|
|
$item->setDesc(true);
|
|
return $item;
|
|
}
|
|
|
|
$item->setAsc(true);
|
|
return $item;
|
|
}
|
|
|
|
/**
|
|
* NewValue ::= SimpleArithmeticExpression | StringPrimary | DatetimePrimary | BooleanPrimary |
|
|
* EnumPrimary | SimpleEntityExpression | "NULL"
|
|
*
|
|
* NOTE: Since it is not possible to correctly recognize individual types, here is the full
|
|
* grammar that needs to be supported:
|
|
*
|
|
* NewValue ::= SimpleArithmeticExpression | "NULL"
|
|
*
|
|
* SimpleArithmeticExpression covers all *Primary grammar rules and also SimplEntityExpression
|
|
*/
|
|
public function NewValue()
|
|
{
|
|
if ($this->_lexer->isNextToken(Lexer::T_NULL)) {
|
|
$this->match(Lexer::T_NULL);
|
|
return null;
|
|
} else if ($this->_lexer->isNextToken(Lexer::T_INPUT_PARAMETER)) {
|
|
$this->match(Lexer::T_INPUT_PARAMETER);
|
|
return new AST\InputParameter($this->_lexer->token['value']);
|
|
}
|
|
|
|
return $this->SimpleArithmeticExpression();
|
|
}
|
|
|
|
|
|
/**
|
|
* IdentificationVariableDeclaration ::= RangeVariableDeclaration [IndexBy] {JoinVariableDeclaration}*
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\IdentificationVariableDeclaration
|
|
*/
|
|
public function IdentificationVariableDeclaration()
|
|
{
|
|
$rangeVariableDeclaration = $this->RangeVariableDeclaration();
|
|
$indexBy = $this->_lexer->isNextToken(Lexer::T_INDEX) ? $this->IndexBy() : null;
|
|
$joinVariableDeclarations = array();
|
|
|
|
while (
|
|
$this->_lexer->isNextToken(Lexer::T_LEFT) ||
|
|
$this->_lexer->isNextToken(Lexer::T_INNER) ||
|
|
$this->_lexer->isNextToken(Lexer::T_JOIN)
|
|
) {
|
|
$joinVariableDeclarations[] = $this->JoinVariableDeclaration();
|
|
}
|
|
|
|
return new AST\IdentificationVariableDeclaration(
|
|
$rangeVariableDeclaration, $indexBy, $joinVariableDeclarations
|
|
);
|
|
}
|
|
|
|
/**
|
|
* SubselectIdentificationVariableDeclaration ::= IdentificationVariableDeclaration | (AssociationPathExpression ["AS"] AliasIdentificationVariable)
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\SubselectIdentificationVariableDeclaration |
|
|
* \Doctrine\ORM\Query\AST\IdentificationVariableDeclaration
|
|
*/
|
|
public function SubselectIdentificationVariableDeclaration()
|
|
{
|
|
$peek = $this->_lexer->glimpse();
|
|
|
|
if ($peek['value'] == '.') {
|
|
$subselectIdVarDecl = new AST\SubselectIdentificationVariableDeclaration;
|
|
$subselectIdVarDecl->setAssociationPathExpression($this->AssociationPathExpression());
|
|
$this->match(Lexer::T_AS);
|
|
$subselectIdVarDecl->setAliasIdentificationVariable($this->AliasIdentificationVariable());
|
|
|
|
return $subselectIdVarDecl;
|
|
}
|
|
|
|
return $this->IdentificationVariableDeclaration();
|
|
}
|
|
|
|
/**
|
|
* JoinVariableDeclaration ::= Join [IndexBy]
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\JoinVariableDeclaration
|
|
*/
|
|
public function JoinVariableDeclaration()
|
|
{
|
|
$join = $this->Join();
|
|
$indexBy = $this->_lexer->isNextToken(Lexer::T_INDEX)
|
|
? $this->IndexBy() : null;
|
|
|
|
return new AST\JoinVariableDeclaration($join, $indexBy);
|
|
}
|
|
|
|
/**
|
|
* RangeVariableDeclaration ::= AbstractSchemaName ["AS"] AliasIdentificationVariable
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\RangeVariableDeclaration
|
|
*/
|
|
public function RangeVariableDeclaration()
|
|
{
|
|
$abstractSchemaName = $this->AbstractSchemaName();
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_AS)) {
|
|
$this->match(Lexer::T_AS);
|
|
}
|
|
|
|
$aliasIdentificationVariable = $this->AliasIdentificationVariable();
|
|
$classMetadata = $this->_em->getClassMetadata($abstractSchemaName);
|
|
|
|
// Building queryComponent
|
|
$queryComponent = array(
|
|
'metadata' => $classMetadata,
|
|
'parent' => null,
|
|
'relation' => null,
|
|
'map' => null,
|
|
'nestingLevel' => $this->_nestingLevel,
|
|
);
|
|
$this->_queryComponents[$aliasIdentificationVariable] = $queryComponent;
|
|
|
|
return new AST\RangeVariableDeclaration(
|
|
$classMetadata, $aliasIdentificationVariable
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Join ::= ["LEFT" ["OUTER"] | "INNER"] "JOIN" JoinAssociationPathExpression
|
|
* ["AS"] AliasIdentificationVariable [("ON" | "WITH") ConditionalExpression]
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\Join
|
|
*/
|
|
public function Join()
|
|
{
|
|
// Check Join type
|
|
$joinType = AST\Join::JOIN_TYPE_INNER;
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_LEFT)) {
|
|
$this->match(Lexer::T_LEFT);
|
|
|
|
// Possible LEFT OUTER join
|
|
if ($this->_lexer->isNextToken(Lexer::T_OUTER)) {
|
|
$this->match(Lexer::T_OUTER);
|
|
$joinType = AST\Join::JOIN_TYPE_LEFTOUTER;
|
|
} else {
|
|
$joinType = AST\Join::JOIN_TYPE_LEFT;
|
|
}
|
|
} else if ($this->_lexer->isNextToken(Lexer::T_INNER)) {
|
|
$this->match(Lexer::T_INNER);
|
|
}
|
|
|
|
$this->match(Lexer::T_JOIN);
|
|
$joinPathExpression = $this->JoinAssociationPathExpression();
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_AS)) {
|
|
$this->match(Lexer::T_AS);
|
|
}
|
|
|
|
$aliasIdentificationVariable = $this->AliasIdentificationVariable();
|
|
|
|
// Verify that the association exists.
|
|
$parentClass = $this->_queryComponents[$joinPathExpression->getIdentificationVariable()]['metadata'];
|
|
$assocField = $joinPathExpression->getAssociationField();
|
|
|
|
if ( ! $parentClass->hasAssociation($assocField)) {
|
|
$this->semanticalError(
|
|
"Class " . $parentClass->name . " has no association named '$assocField'."
|
|
);
|
|
}
|
|
|
|
$targetClassName = $parentClass->getAssociationMapping($assocField)->getTargetEntityName();
|
|
|
|
// Building queryComponent
|
|
$joinQueryComponent = array(
|
|
'metadata' => $this->_em->getClassMetadata($targetClassName),
|
|
'parent' => $joinPathExpression->getIdentificationVariable(),
|
|
'relation' => $parentClass->getAssociationMapping($assocField),
|
|
'map' => null,
|
|
'nestingLevel' => $this->_nestingLevel,
|
|
);
|
|
$this->_queryComponents[$aliasIdentificationVariable] = $joinQueryComponent;
|
|
|
|
// Create AST node
|
|
$join = new AST\Join($joinType, $joinPathExpression, $aliasIdentificationVariable);
|
|
|
|
// Check for ad-hoc Join conditions
|
|
if ($this->_lexer->isNextToken(Lexer::T_ON) || $this->_lexer->isNextToken(Lexer::T_WITH)) {
|
|
if ($this->_lexer->isNextToken(Lexer::T_ON)) {
|
|
$this->match(Lexer::T_ON);
|
|
$join->setWhereType(AST\Join::JOIN_WHERE_ON);
|
|
} else {
|
|
$this->match(Lexer::T_WITH);
|
|
}
|
|
|
|
$join->setConditionalExpression($this->ConditionalExpression());
|
|
}
|
|
|
|
return $join;
|
|
}
|
|
|
|
/**
|
|
* IndexBy ::= "INDEX" "BY" SimpleStateFieldPathExpression
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\IndexBy
|
|
*/
|
|
public function IndexBy()
|
|
{
|
|
$this->match(Lexer::T_INDEX);
|
|
$this->match(Lexer::T_BY);
|
|
$pathExp = $this->SimpleStateFieldPathExpression();
|
|
|
|
// Add the INDEX BY info to the query component
|
|
$parts = $pathExp->getParts();
|
|
$this->_queryComponents[$pathExp->getIdentificationVariable()]['map'] = $parts[0];
|
|
|
|
return $pathExp;
|
|
}
|
|
|
|
|
|
/**
|
|
* SelectExpression ::=
|
|
* IdentificationVariable | StateFieldPathExpression |
|
|
* (AggregateExpression | "(" Subselect ")" | FunctionDeclaration) [["AS"] ResultVariable]
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\SelectExpression
|
|
*/
|
|
public function SelectExpression()
|
|
{
|
|
$expression = null;
|
|
$fieldAliasIdentificationVariable = null;
|
|
$peek = $this->_lexer->glimpse();
|
|
|
|
// First we recognize for an IdentificationVariable (DQL class alias)
|
|
if ($peek['value'] != '.' && $peek['value'] != '(' && $this->_lexer->lookahead['type'] === Lexer::T_IDENTIFIER) {
|
|
$expression = $this->IdentificationVariable();
|
|
} else if (($isFunction = $this->_isFunction()) !== false || $this->_isSubselect()) {
|
|
if ($isFunction) {
|
|
if ($this->_isAggregateFunction($this->_lexer->lookahead['type'])) {
|
|
$expression = $this->AggregateExpression();
|
|
} else {
|
|
$expression = $this->FunctionDeclaration();
|
|
}
|
|
} else {
|
|
$this->match('(');
|
|
$expression = $this->Subselect();
|
|
$this->match(')');
|
|
}
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_AS)) {
|
|
$this->match(Lexer::T_AS);
|
|
}
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_IDENTIFIER)) {
|
|
$resultVariable = $this->ResultVariable();
|
|
|
|
// Include ResultVariable in query components.
|
|
$this->_queryComponents[$resultVariable] = array(
|
|
'resultvariable' => $expression,
|
|
'nestingLevel' => $this->_nestingLevel,
|
|
);
|
|
}
|
|
} else {
|
|
// Deny hydration of partial objects if doctrine.forcePartialLoad query hint not defined
|
|
if (
|
|
$this->_query->getHydrationMode() == Query::HYDRATE_OBJECT &&
|
|
! $this->_em->getConfiguration()->getAllowPartialObjects() &&
|
|
! $this->_query->getHint(Query::HINT_FORCE_PARTIAL_LOAD)
|
|
) {
|
|
throw DoctrineException::partialObjectsAreDangerous();
|
|
}
|
|
|
|
$expression = $this->StateFieldPathExpression();
|
|
}
|
|
|
|
return new AST\SelectExpression($expression, $fieldAliasIdentificationVariable);
|
|
}
|
|
|
|
/**
|
|
* SimpleSelectExpression ::= StateFieldPathExpression | IdentificationVariable | (AggregateExpression [["AS"] ResultVariable])
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\SimpleSelectExpression
|
|
*/
|
|
public function SimpleSelectExpression()
|
|
{
|
|
if ($this->_lexer->isNextToken(Lexer::T_IDENTIFIER)) {
|
|
// SingleValuedPathExpression | IdentificationVariable
|
|
$peek = $this->_lexer->glimpse();
|
|
|
|
if ($peek['value'] == '.') {
|
|
return new AST\SimpleSelectExpression($this->StateFieldPathExpression());
|
|
}
|
|
|
|
$this->match($this->_lexer->lookahead['value']);
|
|
|
|
return new AST\SimpleSelectExpression($this->_lexer->token['value']);
|
|
}
|
|
|
|
$expr = new AST\SimpleSelectExpression($this->AggregateExpression());
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_AS)) {
|
|
$this->match(Lexer::T_AS);
|
|
}
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_IDENTIFIER)) {
|
|
$resultVariable = $this->ResultVariable();
|
|
$expr->setFieldIdentificationVariable($resultVariable);
|
|
|
|
// Include ResultVariable in query components.
|
|
$this->_queryComponents[$resultVariable] = array(
|
|
'resultvariable' => $expr,
|
|
'nestingLevel' => $this->_nestingLevel,
|
|
);
|
|
}
|
|
|
|
return $expr;
|
|
}
|
|
|
|
|
|
/**
|
|
* ConditionalExpression ::= ConditionalTerm {"OR" ConditionalTerm}*
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\ConditionalExpression
|
|
*/
|
|
public function ConditionalExpression()
|
|
{
|
|
$conditionalTerms = array();
|
|
$conditionalTerms[] = $this->ConditionalTerm();
|
|
|
|
while ($this->_lexer->isNextToken(Lexer::T_OR)) {
|
|
$this->match(Lexer::T_OR);
|
|
$conditionalTerms[] = $this->ConditionalTerm();
|
|
}
|
|
|
|
return new AST\ConditionalExpression($conditionalTerms);
|
|
}
|
|
|
|
/**
|
|
* ConditionalTerm ::= ConditionalFactor {"AND" ConditionalFactor}*
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\ConditionalTerm
|
|
*/
|
|
public function ConditionalTerm()
|
|
{
|
|
$conditionalFactors = array();
|
|
$conditionalFactors[] = $this->ConditionalFactor();
|
|
|
|
while ($this->_lexer->isNextToken(Lexer::T_AND)) {
|
|
$this->match(Lexer::T_AND);
|
|
$conditionalFactors[] = $this->ConditionalFactor();
|
|
}
|
|
|
|
return new AST\ConditionalTerm($conditionalFactors);
|
|
}
|
|
|
|
/**
|
|
* ConditionalFactor ::= ["NOT"] ConditionalPrimary
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\ConditionalFactor
|
|
*/
|
|
public function ConditionalFactor()
|
|
{
|
|
$not = false;
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_NOT)) {
|
|
$this->match(Lexer::T_NOT);
|
|
$not = true;
|
|
}
|
|
|
|
return new AST\ConditionalFactor($this->ConditionalPrimary(), $not);
|
|
}
|
|
|
|
/**
|
|
* ConditionalPrimary ::= SimpleConditionalExpression | "(" ConditionalExpression ")"
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\ConditionalPrimary
|
|
*/
|
|
public function ConditionalPrimary()
|
|
{
|
|
$condPrimary = new AST\ConditionalPrimary;
|
|
|
|
if ($this->_lexer->isNextToken('(')) {
|
|
// We need to inner inspect for a subselect (ArithmeticExpression)
|
|
if ( ! $this->_isSubselect()) {
|
|
// Peek beyond and not until matching closing parenthesis
|
|
$peek = $this->_lexer->peek();
|
|
$arithmeticOps = array("+", "-", "*", "/");
|
|
$numUnmatched = 1;
|
|
|
|
// While not found a closing matched parenthesis and a matched arithmetic operator
|
|
while ($numUnmatched > 0 && ! in_array($peek['value'], $arithmeticOps)) {
|
|
if ($peek['value'] == ')') {
|
|
--$numUnmatched;
|
|
} else if ($peek['value'] == '(') {
|
|
++$numUnmatched;
|
|
}
|
|
|
|
$peek = $this->_lexer->peek();
|
|
}
|
|
}
|
|
|
|
// Check if unmatched parenthesis is > 0, then we found a matching arithmetic operator
|
|
if ($numUnmatched > 0) {
|
|
$condPrimary->setSimpleConditionalExpression($this->SimpleConditionalExpression());
|
|
} else {
|
|
$this->match('(');
|
|
$condPrimary->setConditionalExpression($this->ConditionalExpression());
|
|
$this->match(')');
|
|
}
|
|
} else {
|
|
$condPrimary->setSimpleConditionalExpression($this->SimpleConditionalExpression());
|
|
}
|
|
|
|
return $condPrimary;
|
|
}
|
|
|
|
/**
|
|
* SimpleConditionalExpression ::=
|
|
* ComparisonExpression | BetweenExpression | LikeExpression |
|
|
* InExpression | NullComparisonExpression | ExistsExpression |
|
|
* EmptyCollectionComparisonExpression | CollectionMemberExpression
|
|
*/
|
|
public function SimpleConditionalExpression()
|
|
{
|
|
if ($this->_lexer->isNextToken(Lexer::T_NOT)) {
|
|
$token = $this->_lexer->glimpse();
|
|
} else {
|
|
$token = $this->_lexer->lookahead;
|
|
}
|
|
|
|
if ($token['type'] === Lexer::T_EXISTS) {
|
|
return $this->ExistsExpression();
|
|
}
|
|
|
|
$pathExprOrInputParam = false;
|
|
|
|
if ($token['type'] === Lexer::T_IDENTIFIER || $token['type'] === Lexer::T_INPUT_PARAMETER) {
|
|
// Peek beyond the PathExpression
|
|
$pathExprOrInputParam = true;
|
|
$peek = $this->_lexer->peek();
|
|
|
|
while ($peek['value'] === '.') {
|
|
$this->_lexer->peek();
|
|
$peek = $this->_lexer->peek();
|
|
}
|
|
|
|
// Also peek beyond a NOT if there is one
|
|
if ($peek['type'] === Lexer::T_NOT) {
|
|
$peek = $this->_lexer->peek();
|
|
}
|
|
|
|
$token = $peek;
|
|
|
|
// We need to go even further in case of IS (differenciate between NULL and EMPTY)
|
|
$lookahead = $this->_lexer->peek();
|
|
|
|
// Also peek beyond a NOT if there is one
|
|
if ($lookahead['type'] === Lexer::T_NOT) {
|
|
$lookahead = $this->_lexer->peek();
|
|
}
|
|
|
|
$this->_lexer->resetPeek();
|
|
}
|
|
|
|
if ($pathExprOrInputParam) {
|
|
switch ($token['type']) {
|
|
case Lexer::T_NONE:
|
|
return $this->ComparisonExpression();
|
|
|
|
case Lexer::T_BETWEEN:
|
|
return $this->BetweenExpression();
|
|
|
|
case Lexer::T_LIKE:
|
|
return $this->LikeExpression();
|
|
|
|
case Lexer::T_IN:
|
|
return $this->InExpression();
|
|
|
|
case Lexer::T_IS:
|
|
if ($lookahead['type'] == Lexer::T_NULL) {
|
|
return $this->NullComparisonExpression();
|
|
}
|
|
|
|
return $this->EmptyCollectionComparisonExpression();
|
|
|
|
case Lexer::T_MEMBER:
|
|
return $this->CollectionMemberExpression();
|
|
|
|
default:
|
|
$this->syntaxError();
|
|
}
|
|
}
|
|
|
|
return $this->ComparisonExpression();
|
|
}
|
|
|
|
|
|
/**
|
|
* EmptyCollectionComparisonExpression ::= CollectionValuedPathExpression "IS" ["NOT"] "EMPTY"
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\EmptyCollectionComparisonExpression
|
|
*/
|
|
public function EmptyCollectionComparisonExpression()
|
|
{
|
|
$emptyColletionCompExpr = new AST\EmptyCollectionComparisonExpression(
|
|
$this->CollectionValuedPathExpression()
|
|
);
|
|
$this->match(Lexer::T_IS);
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_NOT)) {
|
|
$this->match(Lexer::T_NOT);
|
|
$emptyColletionCompExpr->setNot(true);
|
|
}
|
|
|
|
$this->match(Lexer::T_EMPTY);
|
|
|
|
return $emptyColletionCompExpr;
|
|
}
|
|
|
|
/**
|
|
* CollectionMemberExpression ::= EntityExpression ["NOT"] "MEMBER" ["OF"] CollectionValuedPathExpression
|
|
*
|
|
* EntityExpression ::= SingleValuedAssociationPathExpression | SimpleEntityExpression
|
|
* SimpleEntityExpression ::= IdentificationVariable | InputParameter
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\CollectionMemberExpression
|
|
*/
|
|
public function CollectionMemberExpression()
|
|
{
|
|
$isNot = false;
|
|
|
|
$entityExpr = $this->EntityExpression();
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_NOT)) {
|
|
$isNot = true;
|
|
$this->match(Lexer::T_NOT);
|
|
}
|
|
|
|
$this->match(Lexer::T_MEMBER);
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_OF)) {
|
|
$this->match(Lexer::T_OF);
|
|
}
|
|
|
|
return new AST\CollectionMemberExpression(
|
|
$entityExpr, $this->CollectionValuedPathExpression(), $isNot
|
|
);
|
|
}
|
|
|
|
|
|
/**
|
|
* Literal ::= string | char | integer | float | boolean
|
|
*
|
|
* @return string
|
|
*/
|
|
public function Literal()
|
|
{
|
|
switch ($this->_lexer->lookahead['type']) {
|
|
case Lexer::T_STRING:
|
|
case Lexer::T_INTEGER:
|
|
case Lexer::T_FLOAT:
|
|
$this->match($this->_lexer->lookahead['value']);
|
|
|
|
return $this->_lexer->token['value'];
|
|
|
|
default:
|
|
$this->syntaxError('Literal');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* InParameter ::= Literal | InputParameter
|
|
*
|
|
* @return string | \Doctrine\ORM\Query\AST\InputParameter
|
|
*/
|
|
public function InParameter()
|
|
{
|
|
if ($this->_lexer->lookahead['type'] == Lexer::T_INPUT_PARAMETER) {
|
|
return $this->InputParameter();
|
|
}
|
|
|
|
return $this->Literal();
|
|
}
|
|
|
|
|
|
/**
|
|
* InputParameter ::= PositionalParameter | NamedParameter
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\InputParameter
|
|
*/
|
|
public function InputParameter()
|
|
{
|
|
$this->match($this->_lexer->lookahead['value']);
|
|
|
|
return new AST\InputParameter($this->_lexer->token['value']);
|
|
}
|
|
|
|
|
|
/**
|
|
* ArithmeticExpression ::= SimpleArithmeticExpression | "(" Subselect ")"
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\ArithmeticExpression
|
|
*/
|
|
public function ArithmeticExpression()
|
|
{
|
|
$expr = new AST\ArithmeticExpression;
|
|
|
|
if ($this->_lexer->lookahead['value'] === '(') {
|
|
$peek = $this->_lexer->glimpse();
|
|
|
|
if ($peek['type'] === Lexer::T_SELECT) {
|
|
$this->match('(');
|
|
$expr->setSubselect($this->Subselect());
|
|
$this->match(')');
|
|
|
|
return $expr;
|
|
}
|
|
}
|
|
|
|
$expr->setSimpleArithmeticExpression($this->SimpleArithmeticExpression());
|
|
|
|
return $expr;
|
|
}
|
|
|
|
/**
|
|
* SimpleArithmeticExpression ::= ArithmeticTerm {("+" | "-") ArithmeticTerm}*
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\SimpleArithmeticExpression
|
|
*/
|
|
public function SimpleArithmeticExpression()
|
|
{
|
|
$terms = array();
|
|
$terms[] = $this->ArithmeticTerm();
|
|
|
|
while ($this->_lexer->lookahead['value'] == '+' || $this->_lexer->lookahead['value'] == '-') {
|
|
if ($this->_lexer->lookahead['value'] == '+') {
|
|
$this->match('+');
|
|
} else {
|
|
$this->match('-');
|
|
}
|
|
|
|
$terms[] = $this->_lexer->token['value'];
|
|
$terms[] = $this->ArithmeticTerm();
|
|
}
|
|
|
|
return new AST\SimpleArithmeticExpression($terms);
|
|
}
|
|
|
|
/**
|
|
* ArithmeticTerm ::= ArithmeticFactor {("*" | "/") ArithmeticFactor}*
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\ArithmeticTerm
|
|
*/
|
|
public function ArithmeticTerm()
|
|
{
|
|
$factors = array();
|
|
$factors[] = $this->ArithmeticFactor();
|
|
|
|
while ($this->_lexer->lookahead['value'] == '*' || $this->_lexer->lookahead['value'] == '/') {
|
|
if ($this->_lexer->lookahead['value'] == '*') {
|
|
$this->match('*');
|
|
} else {
|
|
$this->match('/');
|
|
}
|
|
|
|
$factors[] = $this->_lexer->token['value'];
|
|
$factors[] = $this->ArithmeticFactor();
|
|
}
|
|
|
|
return new AST\ArithmeticTerm($factors);
|
|
}
|
|
|
|
/**
|
|
* ArithmeticFactor ::= [("+" | "-")] ArithmeticPrimary
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\ArithmeticFactor
|
|
*/
|
|
public function ArithmeticFactor()
|
|
{
|
|
$pSign = $nSign = false;
|
|
|
|
if ($this->_lexer->lookahead['value'] == '+') {
|
|
$this->match('+');
|
|
$pSign = true;
|
|
} else if ($this->_lexer->lookahead['value'] == '-') {
|
|
$this->match('-');
|
|
$nSign = true;
|
|
}
|
|
|
|
return new AST\ArithmeticFactor($this->ArithmeticPrimary(), $pSign, $nSign);
|
|
}
|
|
|
|
/**
|
|
* ArithmeticPrimary ::= SingleValuedPathExpression | Literal | "(" SimpleArithmeticExpression ")"
|
|
* | FunctionsReturningNumerics | AggregateExpression | FunctionsReturningStrings
|
|
* | FunctionsReturningDatetime | IdentificationVariable
|
|
*/
|
|
public function ArithmeticPrimary()
|
|
{
|
|
if ($this->_lexer->lookahead['value'] === '(') {
|
|
$this->match('(');
|
|
$expr = $this->SimpleArithmeticExpression();
|
|
$this->match(')');
|
|
|
|
return $expr;
|
|
}
|
|
|
|
switch ($this->_lexer->lookahead['type']) {
|
|
case Lexer::T_IDENTIFIER:
|
|
$peek = $this->_lexer->glimpse();
|
|
|
|
if ($peek['value'] == '(') {
|
|
return $this->FunctionDeclaration();
|
|
}
|
|
|
|
if ($peek['value'] == '.') {
|
|
return $this->SingleValuedPathExpression();
|
|
}
|
|
|
|
return $this->IdentificationVariable();
|
|
|
|
case Lexer::T_INPUT_PARAMETER:
|
|
return $this->InputParameter();
|
|
|
|
case Lexer::T_STRING:
|
|
case Lexer::T_INTEGER:
|
|
case Lexer::T_FLOAT:
|
|
return $this->Literal();
|
|
|
|
default:
|
|
$peek = $this->_lexer->glimpse();
|
|
|
|
if ($peek['value'] == '(') {
|
|
if ($this->_isAggregateFunction($this->_lexer->lookahead['type'])) {
|
|
return $this->AggregateExpression();
|
|
}
|
|
|
|
return $this->FunctionsReturningStrings();
|
|
}
|
|
|
|
$this->syntaxError();
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* StringExpression ::= StringPrimary | "(" Subselect ")"
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\StringPrimary |
|
|
* \Doctrine]ORM\Query\AST\Subselect
|
|
*/
|
|
public function StringExpression()
|
|
{
|
|
if ($this->_lexer->lookahead['value'] === '(') {
|
|
$peek = $this->_lexer->glimpse();
|
|
|
|
if ($peek['type'] === Lexer::T_SELECT) {
|
|
$this->match('(');
|
|
$expr = $this->Subselect();
|
|
$this->match(')');
|
|
|
|
return $expr;
|
|
}
|
|
}
|
|
|
|
return $this->StringPrimary();
|
|
}
|
|
|
|
/**
|
|
* StringPrimary ::= StateFieldPathExpression | string | InputParameter | FunctionsReturningStrings | AggregateExpression
|
|
*/
|
|
public function StringPrimary()
|
|
{
|
|
if ($this->_lexer->lookahead['type'] === Lexer::T_IDENTIFIER) {
|
|
$peek = $this->_lexer->glimpse();
|
|
|
|
if ($peek['value'] == '.') {
|
|
return $this->StateFieldPathExpression();
|
|
} else if ($peek['value'] == '(') {
|
|
return $this->FunctionsReturningStrings();
|
|
} else {
|
|
$this->syntaxError("'.' or '('");
|
|
}
|
|
} else if ($this->_lexer->lookahead['type'] === Lexer::T_STRING) {
|
|
$this->match(Lexer::T_STRING);
|
|
|
|
return $this->_lexer->token['value'];
|
|
} else if ($this->_lexer->lookahead['type'] === Lexer::T_INPUT_PARAMETER) {
|
|
return $this->InputParameter();
|
|
} else if ($this->_isAggregateFunction($this->_lexer->lookahead['type'])) {
|
|
return $this->AggregateExpression();
|
|
}
|
|
|
|
$this->syntaxError('StateFieldPathExpression | string | InputParameter | FunctionsReturningStrings | AggregateExpression');
|
|
}
|
|
|
|
/**
|
|
* EntityExpression ::= SingleValuedAssociationPathExpression | SimpleEntityExpression
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\SingleValuedAssociationPathExpression |
|
|
* \Doctrine\ORM\Query\AST\SimpleEntityExpression
|
|
*/
|
|
public function EntityExpression()
|
|
{
|
|
$glimpse = $this->_lexer->glimpse();
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_IDENTIFIER) && $glimpse['value'] === '.') {
|
|
return $this->SingleValuedAssociationPathExpression();
|
|
}
|
|
|
|
return $this->SimpleEntityExpression();
|
|
}
|
|
|
|
/**
|
|
* SimpleEntityExpression ::= IdentificationVariable | InputParameter
|
|
*
|
|
* @return string | \Doctrine\ORM\Query\AST\InputParameter
|
|
*/
|
|
public function SimpleEntityExpression()
|
|
{
|
|
if ($this->_lexer->isNextToken(Lexer::T_INPUT_PARAMETER)) {
|
|
return $this->InputParameter();
|
|
}
|
|
|
|
return $this->IdentificationVariable();
|
|
}
|
|
|
|
|
|
/**
|
|
* AggregateExpression ::=
|
|
* ("AVG" | "MAX" | "MIN" | "SUM") "(" ["DISTINCT"] StateFieldPathExpression ")" |
|
|
* "COUNT" "(" ["DISTINCT"] (IdentificationVariable | SingleValuedPathExpression) ")"
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\AggregateExpression
|
|
*/
|
|
public function AggregateExpression()
|
|
{
|
|
$isDistinct = false;
|
|
$functionName = '';
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_COUNT)) {
|
|
$this->match(Lexer::T_COUNT);
|
|
$functionName = $this->_lexer->token['value'];
|
|
$this->match('(');
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_DISTINCT)) {
|
|
$this->match(Lexer::T_DISTINCT);
|
|
$isDistinct = true;
|
|
}
|
|
|
|
$pathExp = $this->SingleValuedPathExpression();
|
|
$this->match(')');
|
|
} else {
|
|
if ($this->_lexer->isNextToken(Lexer::T_AVG)) {
|
|
$this->match(Lexer::T_AVG);
|
|
} else if ($this->_lexer->isNextToken(Lexer::T_MAX)) {
|
|
$this->match(Lexer::T_MAX);
|
|
} else if ($this->_lexer->isNextToken(Lexer::T_MIN)) {
|
|
$this->match(Lexer::T_MIN);
|
|
} else if ($this->_lexer->isNextToken(Lexer::T_SUM)) {
|
|
$this->match(Lexer::T_SUM);
|
|
} else {
|
|
$this->syntaxError('One of: MAX, MIN, AVG, SUM, COUNT');
|
|
}
|
|
|
|
$functionName = $this->_lexer->token['value'];
|
|
$this->match('(');
|
|
$pathExp = $this->StateFieldPathExpression();
|
|
$this->match(')');
|
|
}
|
|
|
|
return new AST\AggregateExpression($functionName, $pathExp, $isDistinct);
|
|
}
|
|
|
|
|
|
/**
|
|
* QuantifiedExpression ::= ("ALL" | "ANY" | "SOME") "(" Subselect ")"
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\QuantifiedExpression
|
|
*/
|
|
public function QuantifiedExpression()
|
|
{
|
|
$all = $any = $some = false;
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_ALL)) {
|
|
$this->match(Lexer::T_ALL);
|
|
$all = true;
|
|
} else if ($this->_lexer->isNextToken(Lexer::T_ANY)) {
|
|
$this->match(Lexer::T_ANY);
|
|
$any = true;
|
|
} else if ($this->_lexer->isNextToken(Lexer::T_SOME)) {
|
|
$this->match(Lexer::T_SOME);
|
|
$some = true;
|
|
} else {
|
|
$this->syntaxError('ALL, ANY or SOME');
|
|
}
|
|
|
|
$this->match('(');
|
|
$qExpr = new AST\QuantifiedExpression($this->Subselect());
|
|
$this->match(')');
|
|
|
|
$qExpr->setAll($all);
|
|
$qExpr->setAny($any);
|
|
$qExpr->setSome($some);
|
|
|
|
return $qExpr;
|
|
}
|
|
|
|
/**
|
|
* BetweenExpression ::= ArithmeticExpression ["NOT"] "BETWEEN" ArithmeticExpression "AND" ArithmeticExpression
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\BetweenExpression
|
|
*/
|
|
public function BetweenExpression()
|
|
{
|
|
$not = false;
|
|
$arithExpr1 = $this->ArithmeticExpression();
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_NOT)) {
|
|
$this->match(Lexer::T_NOT);
|
|
$not = true;
|
|
}
|
|
|
|
$this->match(Lexer::T_BETWEEN);
|
|
$arithExpr2 = $this->ArithmeticExpression();
|
|
$this->match(Lexer::T_AND);
|
|
$arithExpr3 = $this->ArithmeticExpression();
|
|
|
|
$betweenExpr = new AST\BetweenExpression($arithExpr1, $arithExpr2, $arithExpr3);
|
|
$betweenExpr->setNot($not);
|
|
|
|
return $betweenExpr;
|
|
}
|
|
|
|
/**
|
|
* ComparisonExpression ::= ArithmeticExpression ComparisonOperator ( QuantifiedExpression | ArithmeticExpression )
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\ComparisonExpression
|
|
*/
|
|
public function ComparisonExpression()
|
|
{
|
|
$peek = $this->_lexer->glimpse();
|
|
|
|
$leftExpr = $this->ArithmeticExpression();
|
|
$operator = $this->ComparisonOperator();
|
|
|
|
if ($this->_isNextAllAnySome()) {
|
|
$rightExpr = $this->QuantifiedExpression();
|
|
} else {
|
|
$rightExpr = $this->ArithmeticExpression();
|
|
}
|
|
|
|
return new AST\ComparisonExpression($leftExpr, $operator, $rightExpr);
|
|
}
|
|
|
|
/**
|
|
* InExpression ::= StateFieldPathExpression ["NOT"] "IN" "(" (InParameter {"," InParameter}* | Subselect) ")"
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\InExpression
|
|
*/
|
|
public function InExpression()
|
|
{
|
|
$inExpression = new AST\InExpression($this->StateFieldPathExpression());
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_NOT)) {
|
|
$this->match(Lexer::T_NOT);
|
|
$inExpression->setNot(true);
|
|
}
|
|
|
|
$this->match(Lexer::T_IN);
|
|
$this->match('(');
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_SELECT)) {
|
|
$inExpression->setSubselect($this->Subselect());
|
|
} else {
|
|
$literals = array();
|
|
$literals[] = $this->InParameter();
|
|
|
|
while ($this->_lexer->isNextToken(',')) {
|
|
$this->match(',');
|
|
$literals[] = $this->InParameter();
|
|
}
|
|
|
|
$inExpression->setLiterals($literals);
|
|
}
|
|
|
|
$this->match(')');
|
|
|
|
return $inExpression;
|
|
}
|
|
|
|
/**
|
|
* LikeExpression ::= StringExpression ["NOT"] "LIKE" (string | input_parameter) ["ESCAPE" char]
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\LikeExpression
|
|
*/
|
|
public function LikeExpression()
|
|
{
|
|
$stringExpr = $this->StringExpression();
|
|
$isNot = false;
|
|
|
|
if ($this->_lexer->lookahead['type'] === Lexer::T_NOT) {
|
|
$this->match(Lexer::T_NOT);
|
|
$isNot = true;
|
|
}
|
|
|
|
$this->match(Lexer::T_LIKE);
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_INPUT_PARAMETER)) {
|
|
$this->match(Lexer::T_INPUT_PARAMETER);
|
|
$stringPattern = new AST\InputParameter($this->_lexer->token['value']);
|
|
} else {
|
|
$this->match(Lexer::T_STRING);
|
|
$stringPattern = $this->_lexer->token['value'];
|
|
}
|
|
|
|
$escapeChar = null;
|
|
|
|
if ($this->_lexer->lookahead['type'] === Lexer::T_ESCAPE) {
|
|
$this->match(Lexer::T_ESCAPE);
|
|
$this->match(Lexer::T_STRING);
|
|
$escapeChar = $this->_lexer->token['value'];
|
|
}
|
|
|
|
return new AST\LikeExpression($stringExpr, $stringPattern, $isNot, $escapeChar);
|
|
}
|
|
|
|
/**
|
|
* NullComparisonExpression ::= (SingleValuedPathExpression | InputParameter) "IS" ["NOT"] "NULL"
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\NullComparisonExpression
|
|
*/
|
|
public function NullComparisonExpression()
|
|
{
|
|
if ($this->_lexer->isNextToken(Lexer::T_INPUT_PARAMETER)) {
|
|
$this->match(Lexer::T_INPUT_PARAMETER);
|
|
$expr = new AST\InputParameter($this->_lexer->token['value']);
|
|
} else {
|
|
$expr = $this->SingleValuedPathExpression();
|
|
}
|
|
|
|
$nullCompExpr = new AST\NullComparisonExpression($expr);
|
|
$this->match(Lexer::T_IS);
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_NOT)) {
|
|
$this->match(Lexer::T_NOT);
|
|
$nullCompExpr->setNot(true);
|
|
}
|
|
|
|
$this->match(Lexer::T_NULL);
|
|
|
|
return $nullCompExpr;
|
|
}
|
|
|
|
/**
|
|
* ExistsExpression ::= ["NOT"] "EXISTS" "(" Subselect ")"
|
|
*
|
|
* @return \Doctrine\ORM\Query\AST\ExistsExpression
|
|
*/
|
|
public function ExistsExpression()
|
|
{
|
|
$not = false;
|
|
|
|
if ($this->_lexer->isNextToken(Lexer::T_NOT)) {
|
|
$this->match(Lexer::T_NOT);
|
|
$not = true;
|
|
}
|
|
|
|
$this->match(Lexer::T_EXISTS);
|
|
$this->match('(');
|
|
$existsExpression = new AST\ExistsExpression($this->Subselect());
|
|
$this->match(')');
|
|
$existsExpression->setNot($not);
|
|
|
|
return $existsExpression;
|
|
}
|
|
|
|
/**
|
|
* ComparisonOperator ::= "=" | "<" | "<=" | "<>" | ">" | ">=" | "!="
|
|
*
|
|
* @return string
|
|
*/
|
|
public function ComparisonOperator()
|
|
{
|
|
switch ($this->_lexer->lookahead['value']) {
|
|
case '=':
|
|
$this->match('=');
|
|
|
|
return '=';
|
|
|
|
case '<':
|
|
$this->match('<');
|
|
$operator = '<';
|
|
|
|
if ($this->_lexer->isNextToken('=')) {
|
|
$this->match('=');
|
|
$operator .= '=';
|
|
} else if ($this->_lexer->isNextToken('>')) {
|
|
$this->match('>');
|
|
$operator .= '>';
|
|
}
|
|
|
|
return $operator;
|
|
|
|
case '>':
|
|
$this->match('>');
|
|
$operator = '>';
|
|
|
|
if ($this->_lexer->isNextToken('=')) {
|
|
$this->match('=');
|
|
$operator .= '=';
|
|
}
|
|
|
|
return $operator;
|
|
|
|
case '!':
|
|
$this->match('!');
|
|
$this->match('=');
|
|
|
|
return '<>';
|
|
|
|
default:
|
|
$this->syntaxError('=, <, <=, <>, >, >=, !=');
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* FunctionDeclaration ::= FunctionsReturningStrings | FunctionsReturningNumerics | FunctionsReturningDatetime
|
|
*/
|
|
public function FunctionDeclaration()
|
|
{
|
|
$funcName = $this->_lexer->lookahead['value'];
|
|
|
|
if ($this->_isStringFunction($funcName)) {
|
|
return $this->FunctionsReturningStrings();
|
|
} else if ($this->_isNumericFunction($funcName)) {
|
|
return $this->FunctionsReturningNumerics();
|
|
} else if ($this->_isDatetimeFunction($funcName)) {
|
|
return $this->FunctionsReturningDatetime();
|
|
}
|
|
|
|
$this->syntaxError('Known function.');
|
|
}
|
|
|
|
/**
|
|
* FunctionsReturningNumerics ::=
|
|
* "LENGTH" "(" StringPrimary ")" |
|
|
* "LOCATE" "(" StringPrimary "," StringPrimary ["," SimpleArithmeticExpression]")" |
|
|
* "ABS" "(" SimpleArithmeticExpression ")" |
|
|
* "SQRT" "(" SimpleArithmeticExpression ")" |
|
|
* "MOD" "(" SimpleArithmeticExpression "," SimpleArithmeticExpression ")" |
|
|
* "SIZE" "(" CollectionValuedPathExpression ")"
|
|
*/
|
|
public function FunctionsReturningNumerics()
|
|
{
|
|
$funcNameLower = strtolower($this->_lexer->lookahead['value']);
|
|
$funcClass = self::$_NUMERIC_FUNCTIONS[$funcNameLower];
|
|
$function = new $funcClass($funcNameLower);
|
|
$function->parse($this);
|
|
|
|
return $function;
|
|
}
|
|
|
|
/**
|
|
* FunctionsReturningDateTime ::= "CURRENT_DATE" | "CURRENT_TIME" | "CURRENT_TIMESTAMP"
|
|
*/
|
|
public function FunctionsReturningDatetime()
|
|
{
|
|
$funcNameLower = strtolower($this->_lexer->lookahead['value']);
|
|
$funcClass = self::$_DATETIME_FUNCTIONS[$funcNameLower];
|
|
$function = new $funcClass($funcNameLower);
|
|
$function->parse($this);
|
|
|
|
return $function;
|
|
}
|
|
|
|
/**
|
|
* FunctionsReturningStrings ::=
|
|
* "CONCAT" "(" StringPrimary "," StringPrimary ")" |
|
|
* "SUBSTRING" "(" StringPrimary "," SimpleArithmeticExpression "," SimpleArithmeticExpression ")" |
|
|
* "TRIM" "(" [["LEADING" | "TRAILING" | "BOTH"] [char] "FROM"] StringPrimary ")" |
|
|
* "LOWER" "(" StringPrimary ")" |
|
|
* "UPPER" "(" StringPrimary ")"
|
|
*/
|
|
public function FunctionsReturningStrings()
|
|
{
|
|
$funcNameLower = strtolower($this->_lexer->lookahead['value']);
|
|
$funcClass = self::$_STRING_FUNCTIONS[$funcNameLower];
|
|
$function = new $funcClass($funcNameLower);
|
|
$function->parse($this);
|
|
|
|
return $function;
|
|
}
|
|
}
|