source: pro-violet-viettel/sourcecode/application/libraries/Doctrine/ORM/Query/Expr/Base.php @ 346

Last change on this file since 346 was 345, checked in by quyenla, 11 years ago

collaborator page

File size: 2.7 KB
Line 
1<?php
2/*
3 *  $Id$
4 *
5 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
6 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
7 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
8 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
9 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
10 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
11 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
12 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
13 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
14 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
15 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
16 *
17 * This software consists of voluntary contributions made by many individuals
18 * and is licensed under the LGPL. For more information, see
19 * <http://www.doctrine-project.org>.
20 */
21
22namespace Doctrine\ORM\Query\Expr;
23
24/**
25 * Abstract base Expr class for building DQL parts
26 *
27 * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
28 * @link    www.doctrine-project.org
29 * @since   2.0
30 * @version $Revision$
31 * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
32 * @author  Jonathan Wage <jonwage@gmail.com>
33 * @author  Roman Borschel <roman@code-factory.org>
34 */
35abstract class Base
36{
37    protected $_preSeparator = '(';
38    protected $_separator = ', ';
39    protected $_postSeparator = ')';
40    protected $_allowedClasses = array();
41
42    protected $_parts = array();
43
44    public function __construct($args = array())
45    {
46        $this->addMultiple($args);
47    }
48
49    public function addMultiple($args = array())
50    {
51        foreach ((array) $args as $arg) {
52            $this->add($arg);
53        }
54
55        return $this;
56    }
57
58    public function add($arg)
59    {
60        if ( $arg !== null || ($arg instanceof self && $arg->count() > 0) ) {
61            // If we decide to keep Expr\Base instances, we can use this check
62            if ( ! is_string($arg)) {
63                $class = get_class($arg);
64
65                if ( ! in_array($class, $this->_allowedClasses)) {
66                    throw new \InvalidArgumentException("Expression of type '$class' not allowed in this context.");
67                }
68            }
69
70            $this->_parts[] = $arg;
71        }
72
73        return $this;
74    }
75
76    public function count()
77    {
78        return count($this->_parts);
79    }
80
81    public function __toString()
82    {
83        if ($this->count() == 1) {
84            return (string) $this->_parts[0];
85        }
86
87        return $this->_preSeparator . implode($this->_separator, $this->_parts) . $this->_postSeparator;
88    }
89}
Note: See TracBrowser for help on using the repository browser.