--- /dev/null
+<?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\DBAL\Query\Expression;
+
+use Doctrine\DBAL\Connection;
+
+/**
+ * ExpressionBuilder class is responsible to dynamically create SQL query parts.
+ *
+ * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
+ * @link www.doctrine-project.com
+ * @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 = '>=';
+
+ /**
+ * @var Doctrine\DBAL\Connection DBAL Connection
+ */
+ private $connection = null;
+
+ /**
+ * Initializes a new <tt>ExpressionBuilder</tt>.
+ *
+ * @param \Doctrine\DBAL\Connection $connection 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 $x Optional clause. Defaults = null, but requires
+ * at least one defined when converting to string.
+ * @return CompositeExpression
+ */
+ public function andX($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 $x Optional clause. Defaults = null, but requires
+ * at least one defined when converting to string.
+ * @return CompositeExpression
+ */
+ public function orX($x = null)
+ {
+ return new CompositeExpression(CompositeExpression::TYPE_OR, func_get_args());
+ }
+
+ /**
+ * Creates a comparison expression.
+ *
+ * @param mixed $x Left expression
+ * @param string $operator One of the ExpressionBuilder::* constants.
+ * @param mixed $y Right expression
+ * @return string
+ */
+ public function comparison($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 Left expression
+ * @param mixed $y Right expression
+ * @return string
+ */
+ public function eq($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 Left expression
+ * @param mixed $y Right expression
+ * @return string
+ */
+ public function neq($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 Left expression
+ * @param mixed $y Right expression
+ * @return string
+ */
+ public function lt($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 Left expression
+ * @param mixed $y Right expression
+ * @return string
+ */
+ public function lte($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 Left expression
+ * @param mixed $y Right expression
+ * @return string
+ */
+ public function gt($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 Left expression
+ * @param mixed $y Right expression
+ * @return string
+ */
+ public function gte($x, $y)
+ {
+ return $this->comparison($x, self::GTE, $y);
+ }
+
+ /**
+ * Creates an IS NULL expression with the given arguments.
+ *
+ * @param string $x Field in string format to be restricted by IS NULL
+ *
+ * @return string
+ */
+ public function isNull($x)
+ {
+ return $x . ' IS NULL';
+ }
+
+ /**
+ * Creates an IS NOT NULL expression with the given arguments.
+ *
+ * @param string $x Field in string format to be restricted by IS NOT NULL
+ *
+ * @return string
+ */
+ public function isNotNull($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);
+ }
+
+ /**
+ * Quotes a given input parameter.
+ *
+ * @param mixed $input Parameter to be quoted.
+ * @param string $type Type of the parameter.
+ *
+ * @return string
+ */
+ public function literal($input, $type = null)
+ {
+ return $this->connection->quote($input, $type);
+ }
+}
projects / zf2.biz / application_blanche.git / blobdiff