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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\data\v310;
15
16use phpbb\db\migration\container_aware_migration;
17
18/**
19 * Migration to convert the Soft Delete MOD for 3.0
20 *
21 * https://www.phpbb.com/customise/db/mod/soft_delete/
22 */
23class soft_delete_mod_convert extends container_aware_migration
24{
25    public static function depends_on()
26    {
27        return array(
28            '\phpbb\db\migration\data\v310\alpha3',
29        );
30    }
31
32    public function effectively_installed()
33    {
34        return !$this->db_tools->sql_column_exists($this->table_prefix . 'posts', 'post_deleted');
35    }
36
37    public function update_data()
38    {
39        return array(
40            array('permission.remove', array('m_harddelete', true)),
41            array('permission.remove', array('m_harddelete', false)),
42
43            array('custom', array(array($this, 'convert_posts'))),
44            array('custom', array(array($this, 'convert_topics'))),
45        );
46    }
47
48    public function convert_posts($start)
49    {
50        $content_visibility = $this->get_content_visibility();
51
52        $limit = 250;
53        $i = 0;
54
55        $sql = 'SELECT p.*, t.topic_first_post_id, t.topic_last_post_id
56            FROM ' . $this->table_prefix . 'posts p, ' . $this->table_prefix . 'topics t
57            WHERE p.post_deleted > 0
58                AND t.topic_id = p.topic_id';
59        $result = $this->db->sql_query_limit($sql, $limit, $start);
60
61        while ($row = $this->db->sql_fetchrow($result))
62        {
63            $content_visibility->set_post_visibility(
64                ITEM_DELETED,
65                $row['post_id'],
66                $row['topic_id'],
67                $row['forum_id'],
68                $row['post_deleted'],
69                $row['post_deleted_time'],
70                '',
71                ($row['post_id'] == $row['topic_first_post_id']) ? true : false,
72                ($row['post_id'] == $row['topic_last_post_id']) ? true : false
73            );
74
75            $i++;
76        }
77
78        $this->db->sql_freeresult($result);
79
80        if ($i == $limit)
81        {
82            return $start + $i;
83        }
84    }
85
86    public function convert_topics($start)
87    {
88        $content_visibility = $this->get_content_visibility();
89
90        $limit = 100;
91        $i = 0;
92
93        $sql = 'SELECT *
94            FROM ' . $this->table_prefix . 'topics
95            WHERE topic_deleted > 0';
96        $result = $this->db->sql_query_limit($sql, $limit, $start);
97
98        while ($row = $this->db->sql_fetchrow($result))
99        {
100            $content_visibility->set_topic_visibility(
101                ITEM_DELETED,
102                $row['topic_id'],
103                $row['forum_id'],
104                $row['topic_deleted'],
105                $row['topic_deleted_time'],
106                ''
107            );
108
109            $i++;
110        }
111
112        $this->db->sql_freeresult($result);
113
114        if ($i == $limit)
115        {
116            return $start + $i;
117        }
118    }
119
120    /**
121     * @return \phpbb\content_visibility
122     */
123    protected function get_content_visibility()
124    {
125        /** @var \phpbb\content_visibility $content_visibility */
126        $content_visibility = $this->container->get('content.visibility');
127        return $content_visibility;
128    }
129}