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15 * This software consists of voluntary contributions made by many individuals
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17 * <http://www.doctrine-project.org>.
20 namespace Doctrine\ORM\Query\Expr;
23 * Expression class for building DQL Order By parts
26 * @link www.doctrine-project.org
28 * @author Guilherme Blanco <guilhermeblanco@hotmail.com>
29 * @author Jonathan Wage <jonwage@gmail.com>
30 * @author Roman Borschel <roman@code-factory.org>
37 protected $preSeparator = '';
42 protected $separator = ', ';
47 protected $postSeparator = '';
52 protected $allowedClasses = array();
57 protected $parts = array();
61 * @param string $order
63 public function __construct($sort = null, $order = null)
66 $this->add($sort, $order);
72 * @param string $order
74 public function add($sort, $order = null)
76 $order = ! $order ? 'ASC' : $order;
77 $this->parts[] = $sort . ' '. $order;
83 public function count()
85 return count($this->parts);
91 public function getParts()
99 public function __tostring()
101 return $this->preSeparator . implode($this->separator, $this->parts) . $this->postSeparator;