date_timezone.install in Date 6

Installation file for Date Timezone

File

date_timezone/date_timezone.install

<?php

// Updates happen in random order, whether or not the module is enabled,
// so include critical code here just to be sure.
include_once './' . drupal_get_path('module', 'date_api') . '/date_api.module';
function date_timezone_module_uninstall() {
  $ret = array();
  variable_del('date_default_timezone_name');
  return $ret;
}

/**
 * @file
 * Installation file for Date Timezone
 */

/**
 * Implementation of hook_requirements().
 * Make sure a site timezone name has been selected.
 */
function date_timezone_requirements($phase) {
  $requirements = array();
  $t = get_t();
  $error = FALSE;
  $value = array();
  switch ($phase) {
    case 'runtime':
      $tz_name = variable_get('date_default_timezone_name', NULL);
      if ($tz_name === NULL) {
        $error = TRUE;
        $severity = REQUIREMENT_ERROR;
        $value = $t('The Date Timezone module requires you to !link.', array(
          '!link' => l($t('set the site timezone name'), 'admin/settings/date-time'),
        ));
      }
      elseif (function_exists('date_create')) {
        $date = date_make_date('now', $tz_name);
        if (date_offset_get($date) != variable_get('date_default_timezone', 0)) {
          $error = TRUE;
          $value = $t('The !link may not be correct.', array(
            '!link' => l($t('site timezone name'), 'admin/settings/date-time'),
          ));
          $severity = REQUIREMENT_WARNING;
        }
      }
  }
  if ($error) {
    $requirements['date_default_timezone'] = array(
      'title' => $t('Date Timezone requirements'),
      'value' => $value,
      'severity' => $severity,
    );
  }
  return $requirements;
}

/**
 * Get rid of deprecated timezone names.
 */
function date_timezone_update_5200() {
  $ret = array();
  $old = variable_get('date_default_timezone_name', NULL);
  if (!empty($old)) {
    $new = date_timezone_replacement($old);
    if (!empty($new) && $new != $old) {
      variable_set('date_default_timezone_name', $new);
    }
  }
  $results = db_query("SELECT DISTINCT timezone_name FROM {users} ORDER BY timezone_name");
  while ($row = db_fetch_object($results)) {
    if (!empty($row->timezone_name)) {
      $new = date_timezone_replacement($row->timezone_name);
      if (!empty($new) && $new != $row->timezone_name) {
        db_query("UPDATE {users} SET timezone_name = '%s' WHERE timezone_name = '%s'", $new, $row->timezone_name);
      }
    }
  }

  // Make sure the timezone name list gets updated.
  cache_clear_all('date_timezone_identifiers_list', 'cache');
  date_timezone_names(FALSE, TRUE);
  return $ret;
}

/**
 * Create replacement values for deprecated timezone names.
 */
function _date_timezone_replacement($old) {
  $replace = array(
    'Brazil/Acre' => 'America/Rio_Branco',
    'Brazil/DeNoronha' => 'America/Noronha',
    'Brazil/East' => 'America/Recife',
    'Brazil/West' => 'America/Manaus',
    'Canada/Atlantic' => 'America/Halifax',
    'Canada/Central' => 'America/Winnipeg',
    'Canada/East-Saskatchewan' => 'America/Regina',
    'Canada/Eastern' => 'America/Toronto',
    'Canada/Mountain' => 'America/Edmonton',
    'Canada/Newfoundland' => 'America/St_Johns',
    'Canada/Pacific' => 'America/Vancouver',
    'Canada/Saskatchewan' => 'America/Regina',
    'Canada/Yukon' => 'America/Whitehorse',
    'CET' => 'Europe/Berlin',
    'Chile/Continental' => 'America/Santiago',
    'Chile/EasterIsland' => 'Pacific/Easter',
    'CST6CDT' => 'America/Chicago',
    'Cuba' => 'America/Havana',
    'EET' => 'Europe/Bucharest',
    'Egypt' => 'Africa/Cairo',
    'Eire' => 'Europe/Belfast',
    'EST' => 'America/New_York',
    'EST5EDT' => 'America/New_York',
    'GB' => 'Europe/London',
    'GB-Eire' => 'Europe/Belfast',
    'Etc/GMT' => 'UTC',
    'Etc/GMT+0' => 'UTC',
    'Etc/GMT+1' => 'UTC',
    'Etc/GMT+10' => 'UTC',
    'Etc/GMT+11' => 'UTC',
    'Etc/GMT+12' => 'UTC',
    'Etc/GMT+2' => 'UTC',
    'Etc/GMT+3' => 'UTC',
    'Etc/GMT+4' => 'UTC',
    'Etc/GMT+5' => 'UTC',
    'Etc/GMT+6' => 'UTC',
    'Etc/GMT+7' => 'UTC',
    'Etc/GMT+8' => 'UTC',
    'Etc/GMT+9' => 'UTC',
    'Etc/GMT-0' => 'UTC',
    'Etc/GMT-1' => 'UTC',
    'Etc/GMT-10' => 'UTC',
    'Etc/GMT-11' => 'UTC',
    'Etc/GMT-12' => 'UTC',
    'Etc/GMT-13' => 'UTC',
    'Etc/GMT-14' => 'UTC',
    'Etc/GMT-2' => 'UTC',
    'Etc/GMT-3' => 'UTC',
    'Etc/GMT-4' => 'UTC',
    'Etc/GMT-5' => 'UTC',
    'Etc/GMT-6' => 'UTC',
    'Etc/GMT-7' => 'UTC',
    'Etc/GMT-8' => 'UTC',
    'Etc/GMT-9' => 'UTC',
    'Etc/GMT0' => 'UTC',
    'Etc/Greenwich' => 'UTC',
    'Etc/UCT' => 'UTC',
    'Etc/Universal' => 'UTC',
    'Etc/UTC' => 'UTC',
    'Etc/Zulu' => 'UTC',
    'Factory' => 'UTC',
    'GMT' => 'UTC',
    'GMT+0' => 'UTC',
    'GMT-0' => 'UTC',
    'GMT0' => 'UTC',
    'Hongkong' => 'Asia/Hong_Kong',
    'HST' => 'Pacific/Honolulu',
    'Iceland' => 'Atlantic/Reykjavik',
    'Iran' => 'Asia/Tehran',
    'Israel' => 'Asia/Tel_Aviv',
    'Jamaica' => 'America/Jamaica',
    'Japan' => 'Asia/Tokyo',
    'Kwajalein' => 'Pacific/Kwajalein',
    'Libya' => 'Africa/Tunis',
    'MET' => 'Europe/Budapest',
    'Mexico/BajaNorte' => 'America/Tijuana',
    'Mexico/BajaSur' => 'America/Mazatlan',
    'Mexico/General' => 'America/Mexico_City',
    'MST' => 'America/Boise',
    'MST7MDT' => 'America/Boise',
    'Navajo' => 'America/Phoenix',
    'NZ' => 'Pacific/Auckland',
    'NZ-CHAT' => 'Pacific/Chatham',
    'Poland' => 'Europe/Warsaw',
    'Portugal' => 'Europe/Lisbon',
    'PRC' => 'Asia/Chongqing',
    'PST8PDT' => 'America/Los_Angeles',
    'ROC' => 'Asia/Taipei',
    'ROK' => 'Asia/Seoul',
    'Singapore' => 'Asia/Singapore',
    'Turkey' => 'Europe/Istanbul',
    'US/Alaska' => 'America/Anchorage',
    'US/Aleutian' => 'America/Adak',
    'US/Arizona' => 'America/Phoenix',
    'US/Central' => 'America/Chicago',
    'US/East-Indiana' => 'America/Indianapolis',
    'US/Eastern' => 'America/New_York',
    'US/Hawaii' => 'Pacific/Honolulu',
    'US/Indiana-Starke' => 'America/Indiana/Knox',
    'US/Michigan' => 'America/Detroit',
    'US/Mountain' => 'America/Boise',
    'US/Pacific' => 'America/Los_Angeles',
    'US/Pacific-New' => 'America/Los_Angeles',
    'US/Samoa' => 'Pacific/Samoa',
    'W-SU' => 'Europe/Moscow',
    'WET' => 'Europe/Paris',
  );
  if (array_key_exists($old, $replace)) {
    return $replace[$old];
  }
  else {
    return $old;
  }
}

/**
 * These strings exist only for the extractor to pick them up and make them
 * available for translation. Putting them here keeps them from being parsed
 * on normal pages.
 *
 * Idea borrowed from Event module. Thanks killes!
*/
foreach (timezone_identifiers_list() as $timezone) {
  $zones = array();
  if (preg_match('!^((Africa|America|Antarctica|Arctic|Asia|Atlantic|Australia|Europe|Indian|Pacific)/|UTC$)!', $timezone)) {
    $zones[] = t($timezone);
  }
}

Functions

Name	Description
date_timezone_module_uninstall
date_timezone_requirements	Implementation of hook_requirements(). Make sure a site timezone name has been selected.
date_timezone_update_5200	Get rid of deprecated timezone names.
_date_timezone_replacement	Create replacement values for deprecated timezone names.