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<?php
/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\ORM\Persisters;
use Doctrine\Common\Collections\Expr\ExpressionVisitor;
use Doctrine\Common\Collections\Expr\Comparison;
use Doctrine\Common\Collections\Expr\Value;
use Doctrine\Common\Collections\Expr\CompositeExpression;
/**
* Extract the values from a criteria/expression
*
* @author Benjamin Eberlei <kontakt@beberlei.de>
*/
class SqlValueVisitor extends ExpressionVisitor
{
/**
* @var array
*/
private $values = [];
/**
* @var array
*/
private $types = [];
/**
* Converts a comparison expression into the target query language output.
*
* @param \Doctrine\Common\Collections\Expr\Comparison $comparison
*
* @return void
*/
public function walkComparison(Comparison $comparison)
{
$value = $this->getValueFromComparison($comparison);
$field = $comparison->getField();
$operator = $comparison->getOperator();
if (($operator === Comparison::EQ || $operator === Comparison::IS) && $value === null) {
return;
} else if ($operator === Comparison::NEQ && $value === null) {
return;
}
$this->values[] = $value;
$this->types[] = [$field, $value, $operator];
}
/**
* Converts a composite expression into the target query language output.
*
* @param \Doctrine\Common\Collections\Expr\CompositeExpression $expr
*
* @return void
*/
public function walkCompositeExpression(CompositeExpression $expr)
{
foreach ($expr->getExpressionList() as $child) {
$this->dispatch($child);
}
}
/**
* Converts a value expression into the target query language part.
*
* @param \Doctrine\Common\Collections\Expr\Value $value
*
* @return mixed
*/
public function walkValue(Value $value)
{
return;
}
/**
* Returns the Parameters and Types necessary for matching the last visited expression.
*
* @return mixed[][]
*
* @psalm-return array{0: array, 1: array}
*/
public function getParamsAndTypes()
{
return [$this->values, $this->types];
}
/**
* Returns the value from a Comparison. In case of a CONTAINS comparison,
* the value is wrapped in %-signs, because it will be used in a LIKE clause.
*
* @param \Doctrine\Common\Collections\Expr\Comparison $comparison
* @return mixed
*/
protected function getValueFromComparison(Comparison $comparison)
{
$value = $comparison->getValue()->getValue();
switch ($comparison->getOperator()) {
case Comparison::CONTAINS:
return "%{$value}%";
case Comparison::STARTS_WITH:
return "{$value}%";
case Comparison::ENDS_WITH:
return "%{$value}";
default:
return $value;
}
}
}
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