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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 | |
| 14 | namespace phpbb\db\migration\data\v310; |
| 15 | |
| 16 | class timezone extends \phpbb\db\migration\migration |
| 17 | { |
| 18 | public function effectively_installed() |
| 19 | { |
| 20 | return !$this->db_tools->sql_column_exists($this->table_prefix . 'users', 'user_dst'); |
| 21 | } |
| 22 | |
| 23 | public static function depends_on() |
| 24 | { |
| 25 | return array('\phpbb\db\migration\data\v30x\release_3_0_11'); |
| 26 | } |
| 27 | |
| 28 | public function update_schema() |
| 29 | { |
| 30 | return array( |
| 31 | 'change_columns' => array( |
| 32 | $this->table_prefix . 'users' => array( |
| 33 | 'user_timezone' => array('VCHAR:100', ''), |
| 34 | ), |
| 35 | ), |
| 36 | ); |
| 37 | } |
| 38 | |
| 39 | public function update_data() |
| 40 | { |
| 41 | return array( |
| 42 | array('custom', array(array($this, 'update_timezones'))), |
| 43 | ); |
| 44 | } |
| 45 | |
| 46 | public function update_timezones($start) |
| 47 | { |
| 48 | $start = (int) $start; |
| 49 | $limit = 500; |
| 50 | $converted = 0; |
| 51 | |
| 52 | $update_blocks = array(); |
| 53 | |
| 54 | $sql = 'SELECT user_id, user_timezone, user_dst |
| 55 | FROM ' . $this->table_prefix . 'users |
| 56 | ORDER BY user_id ASC'; |
| 57 | $result = $this->db->sql_query_limit($sql, $limit, $start); |
| 58 | while ($row = $this->db->sql_fetchrow($result)) |
| 59 | { |
| 60 | $converted++; |
| 61 | |
| 62 | // In case this is somehow run twice on a row. |
| 63 | // Otherwise it would just end up as UTC on the second run |
| 64 | if (is_numeric($row['user_timezone'])) |
| 65 | { |
| 66 | $update_blocks[$row['user_timezone'] . ':' . $row['user_dst']][] = (int) $row['user_id']; |
| 67 | } |
| 68 | } |
| 69 | $this->db->sql_freeresult($result); |
| 70 | |
| 71 | // Update blocks of users who share the same timezone/dst |
| 72 | foreach ($update_blocks as $timezone => $user_ids) |
| 73 | { |
| 74 | $timezone = explode(':', $timezone); |
| 75 | $converted_timezone = static::convert_phpbb30_timezone($timezone[0], $timezone[1]); |
| 76 | |
| 77 | $sql = 'UPDATE ' . $this->table_prefix . "users |
| 78 | SET user_timezone = '" . $this->db->sql_escape($converted_timezone) . "' |
| 79 | WHERE " . $this->db->sql_in_set('user_id', $user_ids); |
| 80 | $this->sql_query($sql); |
| 81 | } |
| 82 | |
| 83 | if ($converted == $limit) |
| 84 | { |
| 85 | // There are still more to convert |
| 86 | return $start + $limit; |
| 87 | } |
| 88 | |
| 89 | // Update board default timezone |
| 90 | $sql = 'UPDATE ' . $this->table_prefix . "config |
| 91 | SET config_value = '" . static::convert_phpbb30_timezone($this->config['board_timezone'], $this->config['board_dst']) . "' |
| 92 | WHERE config_name = 'board_timezone'"; |
| 93 | $this->sql_query($sql); |
| 94 | } |
| 95 | |
| 96 | /** |
| 97 | * Determine the new timezone for a given phpBB 3.0 timezone and |
| 98 | * "Daylight Saving Time" option |
| 99 | * |
| 100 | * @param $timezone float Users timezone in 3.0 |
| 101 | * @param $dst int Users daylight saving time |
| 102 | * @return string Users new php Timezone which is used since 3.1 |
| 103 | */ |
| 104 | public static function convert_phpbb30_timezone($timezone, $dst) |
| 105 | { |
| 106 | $offset = (float) $timezone + (int) $dst; |
| 107 | |
| 108 | switch ($timezone) |
| 109 | { |
| 110 | case '-12': |
| 111 | return 'Etc/GMT+' . abs($offset); //'[UTC - 12] Baker Island Time' |
| 112 | case '-11': |
| 113 | return 'Etc/GMT+' . abs($offset); //'[UTC - 11] Niue Time, Samoa Standard Time' |
| 114 | case '-10': |
| 115 | return 'Etc/GMT+' . abs($offset); //'[UTC - 10] Hawaii-Aleutian Standard Time, Cook Island Time' |
| 116 | case '-9.5': |
| 117 | return 'Pacific/Marquesas'; //'[UTC - 9:30] Marquesas Islands Time' |
| 118 | case '-9': |
| 119 | return 'Etc/GMT+' . abs($offset); //'[UTC - 9] Alaska Standard Time, Gambier Island Time' |
| 120 | case '-8': |
| 121 | return 'Etc/GMT+' . abs($offset); //'[UTC - 8] Pacific Standard Time' |
| 122 | case '-7': |
| 123 | return 'Etc/GMT+' . abs($offset); //'[UTC - 7] Mountain Standard Time' |
| 124 | case '-6': |
| 125 | return 'Etc/GMT+' . abs($offset); //'[UTC - 6] Central Standard Time' |
| 126 | case '-5': |
| 127 | return 'Etc/GMT+' . abs($offset); //'[UTC - 5] Eastern Standard Time' |
| 128 | case '-4.5': |
| 129 | return 'America/Caracas'; //'[UTC - 4:30] Venezuelan Standard Time' |
| 130 | case '-4': |
| 131 | return 'Etc/GMT+' . abs($offset); //'[UTC - 4] Atlantic Standard Time' |
| 132 | case '-3.5': |
| 133 | return 'America/St_Johns'; //'[UTC - 3:30] Newfoundland Standard Time' |
| 134 | case '-3': |
| 135 | return 'Etc/GMT+' . abs($offset); //'[UTC - 3] Amazon Standard Time, Central Greenland Time' |
| 136 | case '-2': |
| 137 | return 'Etc/GMT+' . abs($offset); //'[UTC - 2] Fernando de Noronha Time, South Georgia & the South Sandwich Islands Time' |
| 138 | case '-1': |
| 139 | return 'Etc/GMT+' . abs($offset); //'[UTC - 1] Azores Standard Time, Cape Verde Time, Eastern Greenland Time' |
| 140 | case '0': |
| 141 | return (!$dst) ? 'UTC' : 'Etc/GMT-1'; //'[UTC] Western European Time, Greenwich Mean Time' |
| 142 | case '1': |
| 143 | return 'Etc/GMT-' . $offset; //'[UTC + 1] Central European Time, West African Time' |
| 144 | case '2': |
| 145 | return 'Etc/GMT-' . $offset; //'[UTC + 2] Eastern European Time, Central African Time' |
| 146 | case '3': |
| 147 | return 'Etc/GMT-' . $offset; //'[UTC + 3] Moscow Standard Time, Eastern African Time' |
| 148 | case '3.5': |
| 149 | return 'Asia/Tehran'; //'[UTC + 3:30] Iran Standard Time' |
| 150 | case '4': |
| 151 | return 'Etc/GMT-' . $offset; //'[UTC + 4] Gulf Standard Time, Samara Standard Time' |
| 152 | case '4.5': |
| 153 | return 'Asia/Kabul'; //'[UTC + 4:30] Afghanistan Time' |
| 154 | case '5': |
| 155 | return 'Etc/GMT-' . $offset; //'[UTC + 5] Pakistan Standard Time, Yekaterinburg Standard Time' |
| 156 | case '5.5': |
| 157 | return 'Asia/Kolkata'; //'[UTC + 5:30] Indian Standard Time, Sri Lanka Time' |
| 158 | case '5.75': |
| 159 | return 'Asia/Kathmandu'; //'[UTC + 5:45] Nepal Time' |
| 160 | case '6': |
| 161 | return 'Etc/GMT-' . $offset; //'[UTC + 6] Bangladesh Time, Bhutan Time, Novosibirsk Standard Time' |
| 162 | case '6.5': |
| 163 | return 'Indian/Cocos'; //'[UTC + 6:30] Cocos Islands Time, Myanmar Time' |
| 164 | case '7': |
| 165 | return 'Etc/GMT-' . $offset; //'[UTC + 7] Indochina Time, Krasnoyarsk Standard Time' |
| 166 | case '8': |
| 167 | return 'Etc/GMT-' . $offset; //'[UTC + 8] Chinese Standard Time, Australian Western Standard Time, Irkutsk Standard Time' |
| 168 | case '8.75': |
| 169 | return 'Australia/Eucla'; //'[UTC + 8:45] Southeastern Western Australia Standard Time' |
| 170 | case '9': |
| 171 | return 'Etc/GMT-' . $offset; //'[UTC + 9] Japan Standard Time, Korea Standard Time, Chita Standard Time' |
| 172 | case '9.5': |
| 173 | return 'Australia/ACT'; //'[UTC + 9:30] Australian Central Standard Time' |
| 174 | case '10': |
| 175 | return 'Etc/GMT-' . $offset; //'[UTC + 10] Australian Eastern Standard Time, Vladivostok Standard Time' |
| 176 | case '10.5': |
| 177 | return 'Australia/Lord_Howe'; //'[UTC + 10:30] Lord Howe Standard Time' |
| 178 | case '11': |
| 179 | return 'Etc/GMT-' . $offset; //'[UTC + 11] Solomon Island Time, Magadan Standard Time' |
| 180 | case '11.5': |
| 181 | return 'Pacific/Norfolk'; //'[UTC + 11:30] Norfolk Island Time' |
| 182 | case '12': |
| 183 | return 'Etc/GMT-12'; //'[UTC + 12] New Zealand Time, Fiji Time, Kamchatka Standard Time' |
| 184 | case '12.75': |
| 185 | return 'Pacific/Chatham'; //'[UTC + 12:45] Chatham Islands Time' |
| 186 | case '13': |
| 187 | return 'Pacific/Tongatapu'; //'[UTC + 13] Tonga Time, Phoenix Islands Time' |
| 188 | case '14': |
| 189 | return 'Pacific/Kiritimati'; //'[UTC + 14] Line Island Time' |
| 190 | default: |
| 191 | return 'UTC'; |
| 192 | } |
| 193 | } |
| 194 | } |