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by Michael
28s
created

LinkHandler::cleanOrphan()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 3
Code Lines 1

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 1
eloc 1
nc 1
nop 3
dl 0
loc 3
rs 10
c 0
b 0
f 0
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<?php
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namespace XoopsModules\Tag;
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/*
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 You may not change or alter any portion of this comment or credits
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 of supporting developers from this source code or any supporting source code
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 which is considered copyrighted (c) material of the original comment or credit authors.
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 This program is distributed in the hope that it will be useful,
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 but WITHOUT ANY WARRANTY; without even the implied warranty of
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 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*/
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/**
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 * XOOPS tag management module
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 *
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 * @package         tag
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 * @subpackage      class
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 * @copyright       {@link http://sourceforge.net/projects/xoops/ The XOOPS Project}
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 * @license         {@link http://www.fsf.org/copyleft/gpl.html GNU public license}
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 * @author          Taiwen Jiang <[email protected]>
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 * @since           1.00
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 */
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use XoopsModules\Tag;
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Bug introduced by
This use statement conflicts with another class in this namespace, XoopsModules\Tag\Tag. Consider defining an alias.

Let?s assume that you have a directory layout like this:

.
|-- OtherDir
|   |-- Bar.php
|   `-- Foo.php
`-- SomeDir
    `-- Foo.php

and let?s assume the following content of Bar.php:

// Bar.php
namespace OtherDir;

use SomeDir\Foo; // This now conflicts the class OtherDir\Foo

If both files OtherDir/Foo.php and SomeDir/Foo.php are loaded in the same runtime, you will see a PHP error such as the following:

PHP Fatal error:  Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php

However, as OtherDir/Foo.php does not necessarily have to be loaded and the error is only triggered if it is loaded before OtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias:

// Bar.php
namespace OtherDir;

use SomeDir\Foo as SomeDirFoo; // There is no conflict anymore.
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defined('XOOPS_ROOT_PATH') || die('Restricted access');
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/**
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 * Tag link handler class.
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 * @package     tag
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 *
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 * @author      Taiwen Jiang <[email protected]>
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 * @copyright   copyright &copy; The XOOPS Project
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 *
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 * {@link XoopsPersistableObjectHandler}
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 */
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class LinkHandler extends \XoopsPersistableObjectHandler
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{
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    public $table_stats;
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    /**
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     * TagLinkHandler constructor.
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     * @param \XoopsDatabase|null $db
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     */
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    public function __construct(\XoopsDatabase $db = null)
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    {
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        parent::__construct($db, 'tag_link', Link::class, 'tl_id', 'tag_itemid');
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        $this->table_stats = $this->db->prefix('tag_stats');
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    }
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    /**
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     * clean orphan links from database
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     *
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     * @param string $table_link
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     * @param string $field_link
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     * @param string $field_object
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     * @return bool true on success
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     */
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    public function cleanOrphan($table_link = '', $field_link = '', $field_object = '')
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    {
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        return parent::cleanOrphan($this->db->prefix('tag_tag'), 'tag_id');
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    }
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}
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