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1<?php
2/**
3*
4* This file is part of the phpBB Forum Software package.
5*
6* @copyright (c) phpBB Limited <https://www.phpbb.com>
7* @license GNU General Public License, version 2 (GPL-2.0)
8*
9* For full copyright and license information, please see
10* the docs/CREDITS.txt file.
11*
12*/
13
14namespace phpbb\db\migration\tool;
15
16/**
17* Migration config_text tool
18*/
19class config_text implements \phpbb\db\migration\tool\tool_interface
20{
21    /** @var \phpbb\config\db_text */
22    protected $config_text;
23
24    /**
25    * Constructor
26    *
27    * @param \phpbb\config\db_text $config_text
28    */
29    public function __construct(\phpbb\config\db_text $config_text)
30    {
31        $this->config_text = $config_text;
32    }
33
34    /**
35    * {@inheritdoc}
36    */
37    public function get_name()
38    {
39        return 'config_text';
40    }
41
42    /**
43    * Add a config_text setting.
44    *
45    * @param string $config_name The name of the config_text setting
46    *     you would like to add
47    * @param mixed $config_value The value of the config_text setting
48    * @return void
49    */
50    public function add($config_name, $config_value)
51    {
52        if (!is_null($this->config_text->get($config_name)))
53        {
54            return;
55        }
56
57        $this->config_text->set($config_name, $config_value);
58    }
59
60    /**
61    * Update an existing config_text setting.
62    *
63    * @param string $config_name The name of the config_text setting you would
64    *     like to update
65    * @param mixed $config_value The value of the config_text setting
66    * @return void
67    * @throws \phpbb\db\migration\exception
68    */
69    public function update($config_name, $config_value)
70    {
71        if (is_null($this->config_text->get($config_name)))
72        {
73            throw new \phpbb\db\migration\exception('CONFIG_NOT_EXIST', $config_name);
74        }
75
76        $this->config_text->set($config_name, $config_value);
77    }
78
79    /**
80    * Remove an existing config_text setting.
81    *
82    * @param string $config_name The name of the config_text setting you would
83    *     like to remove
84    * @return void
85    */
86    public function remove($config_name)
87    {
88        if (is_null($this->config_text->get($config_name)))
89        {
90            return;
91        }
92
93        $this->config_text->delete($config_name);
94    }
95
96    /**
97    * {@inheritdoc}
98    */
99    public function reverse()
100    {
101        $arguments = func_get_args();
102        $original_call = array_shift($arguments);
103
104        $call = false;
105        switch ($original_call)
106        {
107            case 'add':
108                $call = 'remove';
109            break;
110
111            case 'remove':
112                $call = 'add';
113                if (count($arguments) == 1)
114                {
115                    $arguments[] = '';
116                }
117            break;
118
119            case 'reverse':
120                // Reversing a reverse is just the call itself
121                $call = array_shift($arguments);
122            break;
123        }
124
125        if ($call)
126        {
127            return call_user_func_array(array(&$this, $call), $arguments);
128        }
129
130        return null;
131    }
132}