diff -r 000000000000 -r 7f95f8617b0b vendor/doctrine-dbal/lib/Doctrine/DBAL/Query/Expression/CompositeExpression.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/doctrine-dbal/lib/Doctrine/DBAL/Query/Expression/CompositeExpression.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,130 @@
+<?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 LGPL. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+
+namespace Doctrine\DBAL\Query\Expression;
+
+/**
+ * Composite expression is responsible to build a group of similar expression.
+ *
+ * @license     http://www.opensource.org/licenses/lgpl-license.php LGPL
+ * @link        www.doctrine-project.org
+ * @since       2.1
+ * @author      Guilherme Blanco <guilhermeblanco@hotmail.com>
+ * @author      Benjamin Eberlei <kontakt@beberlei.de>
+ */
+class CompositeExpression implements \Countable
+{
+    /**
+     * Constant that represents an AND composite expression
+     */
+    const TYPE_AND = 'AND';
+    
+    /**
+     * Constant that represents an OR composite expression
+     */
+    const TYPE_OR  = 'OR';
+    
+    /**
+     * @var string Holds the instance type of composite expression
+     */
+    private $type;
+    
+    /**
+     * @var array Each expression part of the composite expression
+     */
+    private $parts = array();
+    
+    /**
+     * Constructor.
+     * 
+     * @param string $type Instance type of composite expression
+     * @param array $parts Composition of expressions to be joined on composite expression
+     */
+    public function __construct($type, array $parts = array())
+    {
+        $this->type = $type;
+        
+        $this->addMultiple($parts);
+    }
+    
+    /**
+     * Adds multiple parts to composite expression.
+     * 
+     * @param array $args
+     * 
+     * @return CompositeExpression
+     */
+    public function addMultiple(array $parts = array())
+    {
+        foreach ((array) $parts as $part) {
+            $this->add($part);
+        }
+        
+        return $this;
+    }
+    
+    /**
+     * Adds an expression to composite expression.
+     * 
+     * @param mixed $part
+     * @return CompositeExpression 
+     */
+    public function add($part)
+    {
+        if ( ! empty($part) || ($part instanceof self && $part->count() > 0)) {
+            $this->parts[] = $part;
+        }
+        
+        return $this;
+    }
+    
+    /**
+     * Retrieves the amount of expressions on composite expression.
+     * 
+     * @return integer 
+     */
+    public function count()
+    {
+        return count($this->parts);
+    }
+    
+    /**
+     * Retrieve the string representation of this composite expression.
+     * 
+     * @return string
+     */
+    public function __toString()
+    {
+        if (count($this->parts) === 1) {
+            return (string) $this->parts[0];
+        }
+        
+        return '(' . implode(') ' . $this->type . ' (', $this->parts) . ')';
+    }
+    
+    /**
+     * Return type of this composite expression (AND/OR)
+     * 
+     * @return string
+     */
+    public function getType()
+    {
+        return $this->type;
+    }
+}
\ No newline at end of file