103 lines
3.3 KiB
PHP
103 lines
3.3 KiB
PHP
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<?php
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/*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the MIT license. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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namespace Doctrine\ORM\Persisters;
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use Doctrine\Common\Collections\Expr\ExpressionVisitor;
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use Doctrine\Common\Collections\Expr\Comparison;
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use Doctrine\Common\Collections\Expr\Value;
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use Doctrine\Common\Collections\Expr\CompositeExpression;
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/**
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* Visit Expressions and generate SQL WHERE conditions from them.
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*
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* @author Benjamin Eberlei <kontakt@beberlei.de>
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* @since 2.3
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*/
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class SqlExpressionVisitor extends ExpressionVisitor
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{
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/**
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* @var \Doctrine\ORM\Persisters\BasicEntityPersister
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*/
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private $persister;
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/**
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* @param \Doctrine\ORM\Persisters\BasicEntityPersister $persister
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*/
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public function __construct(BasicEntityPersister $persister)
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{
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$this->persister = $persister;
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}
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/**
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* Convert a comparison expression into the target query language output
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*
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* @param \Doctrine\Common\Collections\Expr\Comparison $comparison
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*
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* @return mixed
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*/
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public function walkComparison(Comparison $comparison)
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{
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$field = $comparison->getField();
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$value = $comparison->getValue()->getValue(); // shortcut for walkValue()
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return $this->persister->getSelectConditionStatementSQL($field, $value, null, $comparison->getOperator());
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}
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/**
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* Convert a composite expression into the target query language output
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*
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* @param \Doctrine\Common\Collections\Expr\CompositeExpression $expr
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*
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* @return mixed
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*/
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public function walkCompositeExpression(CompositeExpression $expr)
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{
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$expressionList = array();
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foreach ($expr->getExpressionList() as $child) {
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$expressionList[] = $this->dispatch($child);
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}
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switch($expr->getType()) {
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case CompositeExpression::TYPE_AND:
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return '(' . implode(' AND ', $expressionList) . ')';
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case CompositeExpression::TYPE_OR:
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return '(' . implode(' OR ', $expressionList) . ')';
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default:
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throw new \RuntimeException("Unknown composite " . $expr->getType());
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}
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}
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/**
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* Convert a value expression into the target query language part.
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*
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* @param \Doctrine\Common\Collections\Expr\Value $value
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*
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* @return mixed
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*/
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public function walkValue(Value $value)
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{
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return '?';
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}
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}
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