122 lines
3.1 KiB
PHP
122 lines
3.1 KiB
PHP
<?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\ORM\Query\Expr;
|
|
|
|
/**
|
|
* Abstract base Expr class for building DQL parts
|
|
*
|
|
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
|
|
* @link www.doctrine-project.org
|
|
* @since 2.0
|
|
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
|
|
* @author Jonathan Wage <jonwage@gmail.com>
|
|
* @author Roman Borschel <roman@code-factory.org>
|
|
*/
|
|
abstract class Base
|
|
{
|
|
/**
|
|
* @var string
|
|
*/
|
|
protected $preSeparator = '(';
|
|
|
|
/**
|
|
* @var string
|
|
*/
|
|
protected $separator = ', ';
|
|
|
|
/**
|
|
* @var string
|
|
*/
|
|
protected $postSeparator = ')';
|
|
|
|
/**
|
|
* @var array
|
|
*/
|
|
protected $allowedClasses = array();
|
|
|
|
/**
|
|
* @var array
|
|
*/
|
|
protected $parts = array();
|
|
|
|
/**
|
|
* @param array $args
|
|
*/
|
|
public function __construct($args = array())
|
|
{
|
|
$this->addMultiple($args);
|
|
}
|
|
|
|
/**
|
|
* @param array $args
|
|
* @return Base
|
|
*/
|
|
public function addMultiple($args = array())
|
|
{
|
|
foreach ((array) $args as $arg) {
|
|
$this->add($arg);
|
|
}
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* @param mixed $arg
|
|
* @return Base
|
|
*/
|
|
public function add($arg)
|
|
{
|
|
if ( $arg !== null || ($arg instanceof self && $arg->count() > 0) ) {
|
|
// If we decide to keep Expr\Base instances, we can use this check
|
|
if ( ! is_string($arg)) {
|
|
$class = get_class($arg);
|
|
|
|
if ( ! in_array($class, $this->allowedClasses)) {
|
|
throw new \InvalidArgumentException("Expression of type '$class' not allowed in this context.");
|
|
}
|
|
}
|
|
|
|
$this->parts[] = $arg;
|
|
}
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* @return integer
|
|
*/
|
|
public function count()
|
|
{
|
|
return count($this->parts);
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
public function __toString()
|
|
{
|
|
if ($this->count() == 1) {
|
|
return (string) $this->parts[0];
|
|
}
|
|
|
|
return $this->preSeparator . implode($this->separator, $this->parts) . $this->postSeparator;
|
|
}
|
|
}
|