Файл: src/vendor/doctrine/dbal/lib/Doctrine/DBAL/Query/Expression/ExpressionBuilder.php
Строк: 400
<?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 DoctrineDBALQueryExpression;
use DoctrineDBALConnection;
/**
* ExpressionBuilder class is responsible to dynamically create SQL query parts.
*
* @link www.doctrine-project.org
* @since 2.1
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Benjamin Eberlei <kontakt@beberlei.de>
*/
class ExpressionBuilder
{
const EQ = '=';
const NEQ = '<>';
const LT = '<';
const LTE = '<=';
const GT = '>';
const GTE = '>=';
/**
* The DBAL Connection.
*
* @var DoctrineDBALConnection
*/
private $connection;
/**
* Initializes a new <tt>ExpressionBuilder</tt>.
*
* @param DoctrineDBALConnection $connection The DBAL Connection.
*/
public function __construct(Connection $connection)
{
$this->connection = $connection;
}
/**
* Creates a conjunction of the given boolean expressions.
*
* Example:
*
* [php]
* // (u.type = ?) AND (u.role = ?)
* $expr->andX('u.type = ?', 'u.role = ?'));
*
* @param mixed $x Optional clause. Defaults = null, but requires
* at least one defined when converting to string.
*
* @return DoctrineDBALQueryExpressionCompositeExpression
*/
public function andX($x = null)
{
return new CompositeExpression(CompositeExpression::TYPE_AND, func_get_args());
}
/**
* Creates a disjunction of the given boolean expressions.
*
* Example:
*
* [php]
* // (u.type = ?) OR (u.role = ?)
* $qb->where($qb->expr()->orX('u.type = ?', 'u.role = ?'));
*
* @param mixed $x Optional clause. Defaults = null, but requires
* at least one defined when converting to string.
*
* @return DoctrineDBALQueryExpressionCompositeExpression
*/
public function orX($x = null)
{
return new CompositeExpression(CompositeExpression::TYPE_OR, func_get_args());
}
/**
* Creates a comparison expression.
*
* @param mixed $x The left expression.
* @param string $operator One of the ExpressionBuilder::* constants.
* @param mixed $y The right expression.
*
* @return string
*/
public function comparison($x, $operator, $y)
{
return $x . ' ' . $operator . ' ' . $y;
}
/**
* Creates an equality comparison expression with the given arguments.
*
* First argument is considered the left expression and the second is the right expression.
* When converted to string, it will generated a <left expr> = <right expr>. Example:
*
* [php]
* // u.id = ?
* $expr->eq('u.id', '?');
*
* @param mixed $x The left expression.
* @param mixed $y The right expression.
*
* @return string
*/
public function eq($x, $y)
{
return $this->comparison($x, self::EQ, $y);
}
/**
* Creates a non equality comparison expression with the given arguments.
* First argument is considered the left expression and the second is the right expression.
* When converted to string, it will generated a <left expr> <> <right expr>. Example:
*
* [php]
* // u.id <> 1
* $q->where($q->expr()->neq('u.id', '1'));
*
* @param mixed $x The left expression.
* @param mixed $y The right expression.
*
* @return string
*/
public function neq($x, $y)
{
return $this->comparison($x, self::NEQ, $y);
}
/**
* Creates a lower-than comparison expression with the given arguments.
* First argument is considered the left expression and the second is the right expression.
* When converted to string, it will generated a <left expr> < <right expr>. Example:
*
* [php]
* // u.id < ?
* $q->where($q->expr()->lt('u.id', '?'));
*
* @param mixed $x The left expression.
* @param mixed $y The right expression.
*
* @return string
*/
public function lt($x, $y)
{
return $this->comparison($x, self::LT, $y);
}
/**
* Creates a lower-than-equal comparison expression with the given arguments.
* First argument is considered the left expression and the second is the right expression.
* When converted to string, it will generated a <left expr> <= <right expr>. Example:
*
* [php]
* // u.id <= ?
* $q->where($q->expr()->lte('u.id', '?'));
*
* @param mixed $x The left expression.
* @param mixed $y The right expression.
*
* @return string
*/
public function lte($x, $y)
{
return $this->comparison($x, self::LTE, $y);
}
/**
* Creates a greater-than comparison expression with the given arguments.
* First argument is considered the left expression and the second is the right expression.
* When converted to string, it will generated a <left expr> > <right expr>. Example:
*
* [php]
* // u.id > ?
* $q->where($q->expr()->gt('u.id', '?'));
*
* @param mixed $x The left expression.
* @param mixed $y The right expression.
*
* @return string
*/
public function gt($x, $y)
{
return $this->comparison($x, self::GT, $y);
}
/**
* Creates a greater-than-equal comparison expression with the given arguments.
* First argument is considered the left expression and the second is the right expression.
* When converted to string, it will generated a <left expr> >= <right expr>. Example:
*
* [php]
* // u.id >= ?
* $q->where($q->expr()->gte('u.id', '?'));
*
* @param mixed $x The left expression.
* @param mixed $y The right expression.
*
* @return string
*/
public function gte($x, $y)
{
return $this->comparison($x, self::GTE, $y);
}
/**
* Creates an IS NULL expression with the given arguments.
*
* @param string $x The field in string format to be restricted by IS NULL.
*
* @return string
*/
public function isNull($x)
{
return $x . ' IS NULL';
}
/**
* Creates an IS NOT NULL expression with the given arguments.
*
* @param string $x The field in string format to be restricted by IS NOT NULL.
*
* @return string
*/
public function isNotNull($x)
{
return $x . ' IS NOT NULL';
}
/**
* Creates a LIKE() comparison expression with the given arguments.
*
* @param string $x Field in string format to be inspected by LIKE() comparison.
* @param mixed $y Argument to be used in LIKE() comparison.
*
* @return string
*/
public function like($x, $y)
{
return $this->comparison($x, 'LIKE', $y);
}
/**
* Creates a NOT LIKE() comparison expression with the given arguments.
*
* @param string $x Field in string format to be inspected by NOT LIKE() comparison.
* @param mixed $y Argument to be used in NOT LIKE() comparison.
*
* @return string
*/
public function notLike($x, $y)
{
return $this->comparison($x, 'NOT LIKE', $y);
}
/**
* Creates a IN () comparison expression with the given arguments.
*
* @param string $x The field in string format to be inspected by IN() comparison.
* @param string|array $y The placeholder or the array of values to be used by IN() comparison.
*
* @return string
*/
public function in($x, $y)
{
return $this->comparison($x, 'IN', '('.implode(', ', (array) $y).')');
}
/**
* Creates a NOT IN () comparison expression with the given arguments.
*
* @param string $x The field in string format to be inspected by NOT IN() comparison.
* @param string|array $y The placeholder or the array of values to be used by NOT IN() comparison.
*
* @return string
*/
public function notIn($x, $y)
{
return $this->comparison($x, 'NOT IN', '('.implode(', ', (array) $y).')');
}
/**
* Quotes a given input parameter.
*
* @param mixed $input The parameter to be quoted.
* @param string|null $type The type of the parameter.
*
* @return string
*/
public function literal($input, $type = null)
{
return $this->connection->quote($input, $type);
}
}