119 lines
3.6 KiB
PHP
119 lines
3.6 KiB
PHP
<?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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* Extract the values from a criteria/expression
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*
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* @author Benjamin Eberlei <kontakt@beberlei.de>
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*/
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class SqlValueVisitor extends ExpressionVisitor
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{
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/**
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* @var array
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*/
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private $values = array();
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/**
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* @var array
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*/
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private $types = array();
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/**
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* Converts 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 $comparison)
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{
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$value = $this->getValueFromComparison($comparison);
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$field = $comparison->getField();
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$operator = $comparison->getOperator();
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if (($operator === Comparison::EQ || $operator === Comparison::IS) && $value === null) {
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return;
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} else if ($operator === Comparison::NEQ && $value === null) {
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return;
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}
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$this->values[] = $value;
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$this->types[] = array($field, $value);
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}
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/**
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* Converts 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 $expr)
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{
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foreach ($expr->getExpressionList() as $child) {
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$this->dispatch($child);
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}
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}
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/**
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* Converts 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 $value)
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{
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return;
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}
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/**
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* Returns the Parameters and Types necessary for matching the last visited expression.
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*
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* @return array
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*/
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public function getParamsAndTypes()
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{
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return array($this->values, $this->types);
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}
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/**
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* Returns the value from a Comparison. In case of a CONTAINS comparison,
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* the value is wrapped in %-signs, because it will be used in a LIKE clause.
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*
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* @param \Doctrine\Common\Collections\Expr\Comparison $comparison
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* @return mixed
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*/
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protected function getValueFromComparison(Comparison $comparison)
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{
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$value = $comparison->getValue()->getValue();
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return $comparison->getOperator() == Comparison::CONTAINS
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? "%{$value}%"
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: $value;
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}
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}
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