system.install 138 KB
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<?php
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// $Id$
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/**
 * Test and report Drupal installation requirements.
 */
function system_requirements($phase) {
  $requirements = array();
  // Ensure translations don't break at install time
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  $t = get_t();
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  // Report Drupal version
  if ($phase == 'runtime') {
    $requirements['drupal'] = array(
      'title' => $t('Drupal'),
      'value' => VERSION,
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      'severity' => REQUIREMENT_INFO,
      'weight' => -10,
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    );
  }

  // Test web server
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  $software = $_SERVER['SERVER_SOFTWARE'];
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  $requirements['webserver'] = array(
    'title' => $t('Web server'),
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    'value' => $software,
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  );
  // Use server info string, if present.
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  if ($software && preg_match('![0-9]!', $software)) {
    list($server, $version) = split('[ /]', $software);
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    switch ($server) {
      case 'Apache':
        if (version_compare($version, DRUPAL_MINIMUM_APACHE) < 0) {
          $requirements['webserver']['description'] = $t('Your Apache server is too old. Drupal requires at least Apache %version.', array('%version' => DRUPAL_MINIMUM_APACHE));
          $requirements['webserver']['severity'] = REQUIREMENT_ERROR;
        }
        break;

      default:
        $requirements['webserver']['description'] = $t('The web server you\'re using has not been tested with Drupal and might not work properly.');
        $requirements['webserver']['severity'] = REQUIREMENT_WARNING;
        break;
    }
  }
  else {
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    $requirements['webserver']['value'] = $software ? $software : $t('Unknown');
    $requirements['webserver']['description'] = $t('Unable to determine your web server type and version. Drupal might not work properly.');
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    $requirements['webserver']['severity'] = REQUIREMENT_WARNING;
  }

  // Test PHP version
  $requirements['php'] = array(
    'title' => $t('PHP'),
    'value' => ($phase == 'runtime') ? l(phpversion(), 'admin/logs/status/php') : phpversion(),
  );
  if (version_compare(phpversion(), DRUPAL_MINIMUM_PHP) < 0) {
    $requirements['php']['description'] = $t('Your PHP installation is too old. Drupal requires at least PHP %version.', array('%version' => DRUPAL_MINIMUM_PHP));
    $requirements['php']['severity'] = REQUIREMENT_ERROR;
  }

  // Test DB version
  global $db_type;
  if (function_exists('db_status_report')) {
    $requirements += db_status_report($phase);
  }

  // Test settings.php file writability
  if ($phase == 'runtime') {
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    $conf_dir = drupal_verify_install_file(conf_path(), FILE_NOT_WRITABLE, 'dir');
    $conf_file = drupal_verify_install_file(conf_path() .'/settings.php', FILE_EXIST|FILE_READABLE|FILE_NOT_WRITABLE);
    if (!$conf_dir || !$conf_file) {
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      $requirements['settings.php'] = array(
        'value' => $t('Not protected'),
        'severity' => REQUIREMENT_ERROR,
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        'description' => '',
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      );
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      if (!$conf_dir) {
        $requirements['settings.php']['description'] .= $t('The directory %file is not protected from modifications and poses a security risk. You must change the directory\'s permissions to be non-writable. ', array('%file' => conf_path()));
      }
      if (!$conf_file) {
        $requirements['settings.php']['description'] .= $t('The file %file is not protected from modifications and poses a security risk. You must change the file\'s permissions to be non-writable.', array('%file' => conf_path() .'/settings.php'));
      }
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    }
    else {
      $requirements['settings.php'] = array(
        'value' => $t('Protected'),
      );
    }
    $requirements['settings.php']['title'] = $t('Configuration file');
  }

  // Report cron status
  if ($phase == 'runtime') {
    $cron_last = variable_get('cron_last', NULL);

    if (is_numeric($cron_last)) {
      $requirements['cron']['value'] = $t('Last run !time ago', array('!time' => format_interval(time() - $cron_last)));
    }
    else {
      $requirements['cron'] = array(
        'description' => $t('Cron has not run. It appears cron jobs have not been setup on your system. Please check the help pages for <a href="@url">configuring cron jobs</a>.', array('@url' => 'http://drupal.org/cron')),
        'severity' => REQUIREMENT_ERROR,
        'value' => $t('Never run'),
      );
    }
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    $requirements['cron'] += array('description' => '');
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    $requirements['cron']['description'] .= ' '. $t('You can <a href="@cron">run cron manually</a>.', array('@cron' => url('admin/logs/status/run-cron')));
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    $requirements['cron']['title'] = $t('Cron maintenance tasks');
  }

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  // Test files directory
  if ($phase == 'runtime') {
    $directory = file_directory_path();
    $is_writable = is_writable($directory);
    $is_directory = is_dir($directory);
    if (!$is_writable || !$is_directory) {
      if (!$is_directory) {
        $error = $t('The directory %directory does not exist.', array('%directory' => $directory));
      }
      else {
        $error = $t('The directory %directory is not writable.', array('%directory' => $directory));
      }
      $requirements['file system'] = array(
        'value' => $t('Not writable'),
        'severity' => REQUIREMENT_ERROR,
        'description' => $error .' '. $t('You may need to set the correct directory at the <a href="@admin-file-system">file system settings page</a> or change the current directory\'s permissions so that it is writable.', array('@admin-file-system' => url('admin/settings/file-system'))),
      );
    }
    else {
      if (variable_get('file_downloads', FILE_DOWNLOADS_PUBLIC) == FILE_DOWNLOADS_PUBLIC) {
        $requirements['file system'] = array(
          'value' => $t('Writable (<em>public</em> download method)'),
        );
      }
      else {
        $requirements['file system'] = array(
          'value' => $t('Writable (<em>private</em> download method)'),
        );
      }
    }
    $requirements['file system']['title'] = $t('File system');
  }

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  // See if updates are available in update.php.
  if ($phase == 'runtime') {
    $requirements['update'] = array(
      'title' => $t('Database schema'),
      'severity' => REQUIREMENT_OK,
      'value' => $t('Up to date'),
    );

    // Check installed modules.
    foreach (module_list() as $module) {
      $updates = drupal_get_schema_versions($module);
      if ($updates !== FALSE) {
        $default = drupal_get_installed_schema_version($module);
        if (max($updates) > $default) {
          $requirements['update']['severity'] = REQUIREMENT_ERROR;
          $requirements['update']['value'] = $t('Out of date');
          $requirements['update']['description'] = $t('Some modules have database schema updates to install. You should run the <a href="@update">database update script</a> immediately.', array('@update' => base_path() .'update.php'));
          break;
        }
      }
    }
  }

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  // Verify the update.php access setting
  if ($phase == 'runtime') {
    if (!empty($GLOBALS['update_free_access'])) {
      $requirements['update access'] = array(
        'value' => $t('Not protected'),
        'severity' => REQUIREMENT_ERROR,
        'description' => $t('The update.php script is accessible to everyone without authentication check, which is a security risk. You must change the $update_free_access value in your settings.php back to FALSE.'),
      );
    }
    else {
      $requirements['update access'] = array(
        'value' => $t('Protected'),
      );
    }
    $requirements['update access']['title'] = $t('Access to update.php');
  }

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  // Test Unicode library
  include_once './includes/unicode.inc';
  $requirements = array_merge($requirements, unicode_requirements());

  return $requirements;
}


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/**
 * Implementation of hook_install().
 */
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function system_install() {
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 switch ($GLOBALS['db_type']) {
  case 'mysql':
  case 'mysqli':
    // As of Drupal 6, users.uid is an auto-incrementing column, but
    // previously it was not.  Below, we insert a row with uid 0 to
    // represent user anonymous.  By default, mysql treats that as
    // requesting the next sequence value which, of course, is uid
    // 1!  This statement turns off that behavior for the duration
    // of the current request, which is all we need.
    //
    // Note that this statement must be run any time the uid column
    // is inserted or altered.  That includes loading mysqldump
    // backups, but mysqldump puts this statement in all backups for
    // this exact reason.  It also includes any Schema API
    // table-altering operations on the users table.
    db_query("SET sql_mode = 'NO_AUTO_VALUE_ON_ZERO'");
    break;
  case 'pgsql':
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      /* create unsigned types */
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      db_query("CREATE DOMAIN int_unsigned integer CHECK (VALUE >= 0)");
      db_query("CREATE DOMAIN smallint_unsigned smallint CHECK (VALUE >= 0)");
      db_query("CREATE DOMAIN bigint_unsigned bigint CHECK (VALUE >= 0)");
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      /* create functions */
      db_query('CREATE OR REPLACE FUNCTION "greatest"(numeric, numeric) RETURNS numeric AS
        \'SELECT CASE WHEN (($1 > $2) OR ($2 IS NULL)) THEN $1 ELSE $2 END;\'
        LANGUAGE \'sql\''
      );
      db_query('CREATE OR REPLACE FUNCTION "greatest"(numeric, numeric, numeric) RETURNS numeric AS
        \'SELECT greatest($1, greatest($2, $3));\'
        LANGUAGE \'sql\''
      );
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      if (!db_result(db_query("SELECT COUNT(*) FROM pg_proc WHERE proname = 'rand'"))) {
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        db_query('CREATE OR REPLACE FUNCTION "rand"() RETURNS float AS
          \'SELECT random();\'
          LANGUAGE \'sql\''
        );
      }

      if (!db_result(db_query("SELECT COUNT(*) FROM pg_proc WHERE proname = 'concat'"))) {
        db_query('CREATE OR REPLACE FUNCTION "concat"(text, text) RETURNS text AS
          \'SELECT $1 || $2;\'
          LANGUAGE \'sql\''
        );
      }
      db_query('CREATE OR REPLACE FUNCTION "if"(boolean, text, text) RETURNS text AS
        \'SELECT CASE WHEN $1 THEN $2 ELSE $3 END;\'
        LANGUAGE \'sql\''
      );
      db_query('CREATE OR REPLACE FUNCTION "if"(boolean, integer, integer) RETURNS integer AS
        \'SELECT CASE WHEN $1 THEN $2 ELSE $3 END;\'
        LANGUAGE \'sql\''
      );
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    break;
  }
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  // Create tables.
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  $modules = array('system', 'filter', 'block', 'user', 'node', 'comment', 'taxonomy');
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  foreach ($modules as $module) {
    drupal_install_schema($module);
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  }
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  // Load system theme data appropriately.
  system_theme_data();
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  db_query("INSERT INTO {users} (uid, name, mail) VALUES(%d, '%s', '%s')", 0, '', '');
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  db_query("INSERT INTO {role} (name) VALUES ('%s')", 'anonymous user');
  db_query("INSERT INTO {role} (name) VALUES ('%s')", 'authenticated user');
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  db_query("INSERT INTO {permission} (rid, perm, tid) VALUES (%d, '%s', %d)", 1, 'access content', 0);
  db_query("INSERT INTO {permission} (rid, perm, tid) VALUES (%d, '%s', %d)", 2, 'access comments, access content, post comments, post comments without approval', 0);
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  db_query("INSERT INTO {variable} (name, value) VALUES ('%s', '%s')", 'theme_default', 's:7:"garland";');
  db_query("UPDATE {system} SET status = %d WHERE type = '%s' AND name = '%s'", 1, 'theme', 'garland');
  db_query("INSERT INTO {blocks} (module, delta, theme, status, pages) VALUES ('%s', '%s', '%s', %d, '%s')", 'user', '0', 'garland', 1, '');
  db_query("INSERT INTO {blocks} (module, delta, theme, status, pages) VALUES ('%s', '%s', '%s', %d, '%s')", 'user', '1', 'garland', 1, '');
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  db_query("INSERT INTO {node_access} (nid, gid, realm, grant_view, grant_update, grant_delete) VALUES (%d, %d, '%s', %d, %d, %d)", 0, 0, 'all', 1, 0, 0);
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  // Add input formats.
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  db_query("INSERT INTO {filter_formats} (name, roles, cache) VALUES ('%s', '%s', %d)", 'Filtered HTML', ',1,2,', 1);
  db_query("INSERT INTO {filter_formats} (name, roles, cache) VALUES ('%s', '%s', %d)", 'Full HTML', '', 1);
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  // Enable filters for each input format.

  // Filtered HTML:
  // URL filter.
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  db_query("INSERT INTO {filters} (format, module, delta, weight) VALUES (%d, '%s', %d, %d)", 1, 'filter', 2, 0);
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  // HTML filter.
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  db_query("INSERT INTO {filters} (format, module, delta, weight) VALUES (%d, '%s', %d, %d)", 1, 'filter', 0, 1);
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  // Line break filter.
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  db_query("INSERT INTO {filters} (format, module, delta, weight) VALUES (%d, '%s', %d, %d)", 1, 'filter', 1, 2);
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  // HTML corrector filter.
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  db_query("INSERT INTO {filters} (format, module, delta, weight) VALUES (%d, '%s', %d, %d)", 1, 'filter', 3, 10);
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  // Full HTML:
  // URL filter.
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  db_query("INSERT INTO {filters} (format, module, delta, weight) VALUES (%d, '%s', %d, %d)", 2, 'filter', 2, 0);
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  // Line break filter.
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  db_query("INSERT INTO {filters} (format, module, delta, weight) VALUES (%d, '%s', %d, %d)", 2, 'filter', 1, 1);
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  // HTML corrector filter.
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  db_query("INSERT INTO {filters} (format, module, delta, weight) VALUES (%d, '%s', %d, %d)", 1, 'filter', 3, 10);
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  db_query("INSERT INTO {variable} (name, value) VALUES ('%s','%s')", 'filter_html_1', 'i:1;');
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  db_query("INSERT INTO {variable} (name, value) VALUES ('%s', '%s')", 'node_options_forum', 'a:1:{i:0;s:6:"status";}');
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}

// Updates for core
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function system_update_110() {
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  $ret = array();

  // TODO: needs PGSQL version
  if ($GLOBALS['db_type'] == 'mysql') {
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    /*
    ** Search
    */

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    $ret[] = update_sql('DROP TABLE {search_index}');
    $ret[] = update_sql("CREATE TABLE {search_index} (
      word varchar(50) NOT NULL default '',
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      sid int unsigned NOT NULL default '0',
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      type varchar(16) default NULL,
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      fromsid int unsigned NOT NULL default '0',
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      fromtype varchar(16) default NULL,
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      score int unsigned default NULL,
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      KEY sid (sid),
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      KEY fromsid (fromsid),
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      KEY word (word)
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      )");
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    $ret[] = update_sql("CREATE TABLE {search_total} (
      word varchar(50) NOT NULL default '',
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      count int unsigned default NULL,
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      PRIMARY KEY word (word)
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      )");
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    /*
    ** Blocks
    */

    $ret[] = update_sql('ALTER TABLE {blocks} DROP path');
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    $ret[] = update_sql('ALTER TABLE {blocks} ADD visibility tinyint NOT NULL');
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    $ret[] = update_sql('ALTER TABLE {blocks} ADD pages text NOT NULL');
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  }
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  elseif ($GLOBALS['db_type'] == 'pgsql') {
    /*
    ** Search
    */
    $ret[] = update_sql('DROP TABLE {search_index}');
    $ret[] = update_sql("CREATE TABLE {search_index} (
      word varchar(50) NOT NULL default '',
      sid integer NOT NULL default '0',
      type varchar(16) default NULL,
      fromsid integer NOT NULL default '0',
      fromtype varchar(16) default NULL,
      score integer default NULL
      )");
    $ret[] = update_sql("CREATE INDEX {search_index}_sid_idx on {search_index}(sid)");
    $ret[] = update_sql("CREATE INDEX {search_index}_fromsid_idx on {search_index}(fromsid)");
    $ret[] = update_sql("CREATE INDEX {search_index}_word_idx on {search_index}(word)");

    $ret[] = update_sql("CREATE TABLE {search_total} (
      word varchar(50) NOT NULL default '' PRIMARY KEY,
      count integer default NULL
      )");

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    /*
    ** Blocks
    */
    // Postgres can only drop columns since 7.4
    #$ret[] = update_sql('ALTER TABLE {blocks} DROP path');

    $ret[] = update_sql('ALTER TABLE {blocks} ADD visibility smallint');
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    $ret[] = update_sql("ALTER TABLE {blocks} ALTER COLUMN visibility set default 0");
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    $ret[] = update_sql('UPDATE {blocks} SET visibility = 0');
    $ret[] = update_sql('ALTER TABLE {blocks} ALTER COLUMN visibility SET NOT NULL');
    $ret[] = update_sql('ALTER TABLE {blocks} ADD pages text');
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    $ret[] = update_sql("ALTER TABLE {blocks} ALTER COLUMN pages set default ''");
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    $ret[] = update_sql("UPDATE {blocks} SET pages = ''");
    $ret[] = update_sql('ALTER TABLE {blocks} ALTER COLUMN pages SET NOT NULL');

  }

  $ret[] = update_sql("DELETE FROM {variable} WHERE name = 'node_cron_last'");
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  $ret[] = update_sql('UPDATE {blocks} SET status = 1, custom = 2 WHERE status = 0 AND custom = 1');

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  return $ret;
}
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function system_update_111() {
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  $ret = array();

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  $ret[] = update_sql("DELETE FROM {variable} WHERE name LIKE 'throttle_%'");

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  if ($GLOBALS['db_type'] == 'mysql') {
    $ret[] = update_sql('ALTER TABLE {sessions} ADD PRIMARY KEY sid (sid)');
  }
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  elseif ($GLOBALS['db_type'] == 'pgsql') {
    $ret[] = update_sql('ALTER TABLE {sessions} ADD UNIQUE(sid)');
  }
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  return $ret;
}

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function system_update_112() {
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  $ret = array();

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  if ($GLOBALS['db_type'] == 'mysql') {
    $ret[] = update_sql("CREATE TABLE {flood} (
      event varchar(64) NOT NULL default '',
      hostname varchar(128) NOT NULL default '',
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      timestamp int NOT NULL default '0'
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     );");
  }
  elseif ($GLOBALS['db_type'] == 'pgsql') {
    $ret[] = update_sql("CREATE TABLE {flood} (
      event varchar(64) NOT NULL default '',
      hostname varchar(128) NOT NULL default '',
      timestamp integer NOT NULL default 0
     );");
  }
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  return $ret;
}

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function system_update_113() {
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  $ret = array();

  if ($GLOBALS['db_type'] == 'mysql') {
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    $ret[] = update_sql('ALTER TABLE {accesslog} ADD aid int NOT NULL auto_increment, ADD PRIMARY KEY (aid)');
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  }
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  elseif ($GLOBALS['db_type'] == 'pgsql') {
    $ret[] = update_sql("SELECT * INTO TEMPORARY {accesslog}_t FROM {accesslog}");
    $ret[] = update_sql("DROP TABLE {accesslog}");
    $ret[] = update_sql("CREATE TABLE {accesslog} (
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      aid serial,
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      title varchar(255) default NULL,
      path varchar(255) default NULL,
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      url varchar(255) default NULL,
      hostname varchar(128) default NULL,
      uid integer default '0',
      timestamp integer NOT NULL default '0'
    )");
    $ret[] = update_sql("INSERT INTO {accesslog} (title, path, url, hostname, uid, timestamp) SELECT title, path, url, hostname, uid, timestamp FROM {accesslog}_t");

    $ret[] = update_sql("DROP TABLE {accesslog}_t");
    $ret[] = update_sql("CREATE INDEX {accesslog}_timestamp_idx ON {accesslog} (timestamp);");

  }

  // Flush the menu cache:
  cache_clear_all('menu:', TRUE);

  return $ret;
}

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function system_update_114() {
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  $ret = array();
  if ($GLOBALS['db_type'] == 'mysql') {
    $ret[] = update_sql("CREATE TABLE {queue} (
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      nid int unsigned NOT NULL,
      uid int unsigned NOT NULL,
      vote int NOT NULL default '0',
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      PRIMARY KEY (nid, uid)
     )");
  }
  else if ($GLOBALS['db_type'] == 'pgsql') {
    $ret[] = update_sql("CREATE TABLE {queue} (
      nid integer NOT NULL default '0',
      uid integer NOT NULL default '0',
      vote integer NOT NULL default '0',
      PRIMARY KEY (nid, uid)
    )");
    $ret[] = update_sql("CREATE INDEX {queue}_nid_idx ON queue(nid)");
    $ret[] = update_sql("CREATE INDEX {queue}_uid_idx ON queue(uid)");
  }

  $result = db_query("SELECT nid, votes, score, users FROM {node}");
  while ($node = db_fetch_object($result)) {
    if (isset($node->users)) {
      $arr = explode(',', $node->users);
      unset($node->users);
      foreach ($arr as $value) {
        $arr2 = explode('=', trim($value));
        if (isset($arr2[0]) && isset($arr2[1])) {
          switch ($arr2[1]) {
            case '+ 1':
              db_query("INSERT INTO {queue} (nid, uid, vote) VALUES (%d, %d, %d)", $node->nid, (int)$arr2[0], 1);
              break;
            case '- 1':
              db_query("INSERT INTO {queue} (nid, uid, vote) VALUES (%d, %d, %d)", $node->nid, (int)$arr2[0], -1);
              break;
            default:
              db_query("INSERT INTO {queue} (nid, uid, vote) VALUES (%d, %d, %d)", $node->nid, (int)$arr2[0], 0);
          }
        }
      }
    }
  }

  if ($GLOBALS['db_type'] == 'mysql') {
    // Postgres only supports dropping of columns since 7.4
    $ret[] = update_sql("ALTER TABLE {node} DROP votes");
    $ret[] = update_sql("ALTER TABLE {node} DROP score");
    $ret[] = update_sql("ALTER TABLE {node} DROP users");
  }

  return $ret;
}

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function system_update_115() {
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  $ret = array();
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  // This update has been moved to update_fix_watchdog_115 in update.php because it
  // is needed for the basic functioning of the update script.

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  return $ret;
}

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function system_update_116() {
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  return array(update_sql("DELETE FROM {system} WHERE name = 'admin'"));
}

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function system_update_117() {
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  $ret = array();
  if ($GLOBALS['db_type'] == 'mysql') {
    $ret[] = update_sql("CREATE TABLE {vocabulary_node_types} (
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                         vid int NOT NULL default '0',
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                         type varchar(16) NOT NULL default '',
                         PRIMARY KEY (vid, type))");
  }
  else if ($GLOBALS['db_type'] == 'pgsql') {
    $ret[] = update_sql("CREATE TABLE {vocabulary_node_types} (
                         vid serial,
                         type varchar(16) NOT NULL default '',
                          PRIMARY KEY (vid, type)) ");
  }
  return $ret;
}

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function system_update_118() {
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  $ret = array();
  $node_types = array();
  $result = db_query('SELECT vid, nodes FROM {vocabulary}');
  while ($vocabulary = db_fetch_object($result)) {
    $node_types[$vocabulary->vid] = explode(',', $vocabulary->nodes);
  }
  foreach ($node_types as $vid => $type_array) {
    foreach ($type_array as $type) {
      db_query("INSERT INTO {vocabulary_node_types} (vid, type) VALUES (%d, '%s')", $vid, $type);
    }
  }
  if ($GLOBALS['db_type'] == 'mysql') {
    $ret[] = update_sql("ALTER TABLE {vocabulary} DROP nodes");
  }
  return $ret;
}

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function system_update_119() {
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  $ret = array();

  foreach (node_get_types() as $type => $name) {
    $node_options = array();
    if (variable_get('node_status_'. $type, 1)) {
      $node_options[] = 'status';
    }
    if (variable_get('node_moderate_'. $type, 0)) {
      $node_options[] = 'moderate';
    }
    if (variable_get('node_promote_'. $type, 1)) {
      $node_options[] = 'promote';
    }
    if (variable_get('node_sticky_'. $type, 0)) {
      $node_options[] = 'sticky';
    }
    if (variable_get('node_revision_'. $type, 0)) {
      $node_options[] = 'revision';
    }
    variable_set('node_options_'. $type, $node_options);
    variable_del('node_status_'. $type);
    variable_del('node_moderate_'. $type);
    variable_del('node_promote_'. $type);
    variable_del('node_sticky_'. $type);
    variable_del('node_revision_'. $type);
  }

  return $ret;
}

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function system_update_120() {
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  $ret = array();

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  // Rewrite old URL aliases. Works for both PostgreSQL and MySQL
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  $result = db_query("SELECT pid, src FROM {url_alias} WHERE src LIKE 'blog/%%'");
  while ($alias = db_fetch_object($result)) {
    list(, $page, $op, $uid) = explode('/', $alias->src);
    if ($page == 'feed') {
      $new = "blog/$uid/feed";
      update_sql("UPDATE {url_alias} SET src = '%s' WHERE pid = '%s'", $new, $alias->pid);
    }
  }

  return $ret;
}

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function system_update_121() {
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  $ret = array();

  // Remove the unused page table.
  $ret[] = update_sql('DROP TABLE {page}');

  return $ret;
}

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function system_update_122() {
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  $ret = array();
  $ret[] = update_sql("ALTER TABLE {blocks} ADD types text");
  return $ret;

}

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function system_update_123() {
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  $ret = array();

  if ($GLOBALS['db_type'] == 'mysql') {
    $ret[] = update_sql("ALTER TABLE {vocabulary} ADD module varchar(255) NOT NULL default ''");
  }
  elseif ($GLOBALS['db_type'] == 'pgsql') {
    $ret[] = update_sql("ALTER TABLE {vocabulary} ADD module varchar(255)");
    $ret[] = update_sql("UPDATE {vocabulary} SET module = ''");
    $ret[] = update_sql("ALTER TABLE {vocabulary} ALTER COLUMN module SET NOT NULL");
    $ret[] = update_sql("ALTER TABLE {vocabulary} ALTER COLUMN module SET DEFAULT ''");
  }

  $ret[] = update_sql("UPDATE {vocabulary} SET module = 'taxonomy'");
  $vid = variable_get('forum_nav_vocabulary', '');
  if (!empty($vid)) {
    $ret[] = update_sql("UPDATE {vocabulary} SET module = 'forum' WHERE vid = " . $vid);
  }

  return $ret;
}

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function system_update_124() {
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  $ret = array();

  if ($GLOBALS['db_type'] == 'mysql') {
    // redo update_105, correctly creating node_comment_statistics
    $ret[] = update_sql("DROP TABLE IF EXISTS {node_comment_statistics}");

    $ret[] = update_sql("CREATE TABLE {node_comment_statistics} (
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      nid int unsigned NOT NULL auto_increment,
      last_comment_timestamp int NOT NULL default '0',
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      last_comment_name varchar(60) default NULL,
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      last_comment_uid int NOT NULL default '0',
      comment_count int unsigned NOT NULL default '0',
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      PRIMARY KEY (nid),
      KEY node_comment_timestamp (last_comment_timestamp)
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      )");
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  }

  else {
    // also drop incorrectly named table for PostgreSQL
    $ret[] = update_sql("DROP TABLE {node}_comment_statistics");

    $ret[] = update_sql("CREATE TABLE {node_comment_statistics} (
      nid integer NOT NULL,
      last_comment_timestamp integer NOT NULL default '0',
      last_comment_name varchar(60)  default NULL,
      last_comment_uid integer NOT NULL default '0',
      comment_count integer NOT NULL default '0',
      PRIMARY KEY (nid)
    )");

    $ret[] = update_sql("CREATE INDEX {node_comment_statistics}_timestamp_idx ON {node_comment_statistics}(last_comment_timestamp);
");
  }

  // initialize table
  $ret[] = update_sql("INSERT INTO {node_comment_statistics} (nid, last_comment_timestamp, last_comment_name, last_comment_uid, comment_count) SELECT n.nid, n.changed, NULL, 0, 0 FROM {node} n");

  // fill table
  $result = db_query("SELECT c.nid, c.timestamp, c.name, c.uid, COUNT(c.nid) as comment_count FROM {node} n LEFT JOIN {comments} c ON c.nid = n.nid WHERE c.status = 0 GROUP BY c.nid, c.timestamp, c.name, c.uid");
  while ($comment_record = db_fetch_object($result)) {
    $count = db_result(db_query('SELECT COUNT(cid) FROM {comments} WHERE nid = %d AND status = 0', $comment_record->nid));
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    db_query("UPDATE {node_comment_statistics} SET comment_count = %d, last_comment_timestamp = %d, last_comment_name = '%s', last_comment_uid = %d WHERE nid = %d", $count, $comment_record->timestamp, $comment_record->name, $comment_record->uid, $comment_record->nid);
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  }

  return $ret;
}

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function system_update_125() {
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  // Postgres only update.
  $ret = array();

  if ($GLOBALS['db_type'] == 'pgsql') {

    $ret[] = update_sql("CREATE OR REPLACE FUNCTION if(boolean, anyelement, anyelement) RETURNS anyelement AS '
          SELECT CASE WHEN $1 THEN $2 ELSE $3 END;
        ' LANGUAGE 'sql'");

    $ret[] = update_sql("CREATE FUNCTION greatest(integer, integer, integer) RETURNS integer AS '
                          SELECT greatest($1, greatest($2, $3));
                        ' LANGUAGE 'sql'");

  }

  return $ret;
}

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function system_update_126() {
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  variable_set('forum_block_num_0', variable_get('forum_block_num', 5));
  variable_set('forum_block_num_1', variable_get('forum_block_num', 5));
  variable_del('forum_block_num');

  return array();
}

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function system_update_127() {
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  $ret = array();
  if ($GLOBALS['db_type'] == 'pgsql') {
    $ret[] = update_sql("ALTER TABLE {poll} RENAME voters TO polled");
  }
  else if ($GLOBALS['db_type'] == 'mysql') {
    $ret[] = update_sql("ALTER TABLE {poll} CHANGE voters polled longtext");
  }
  return $ret;
}

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function system_update_128() {
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  $ret = array();

  if ($GLOBALS['db_type'] == 'mysql') {
    $ret[] = update_sql('ALTER TABLE {term_node} ADD PRIMARY KEY (tid,nid)');
  }
  elseif ($GLOBALS['db_type'] == 'pgsql') {
    $ret[] = update_sql('ALTER TABLE {term_node} ADD PRIMARY KEY (tid,nid)');
  }

  return $ret;
}

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function system_update_129() {
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  $ret = array();

  if ($GLOBALS['db_type'] == 'mysql') {
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    $ret[] = update_sql("ALTER TABLE {vocabulary} ADD tags tinyint unsigned default '0' NOT NULL");
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  }
  elseif ($GLOBALS['db_type'] == 'pgsql') {
    db_add_column($ret, 'vocabulary', 'tags', 'smallint', array('default' => 0, 'not null' => TRUE));
  }

  return $ret;
}

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function system_update_130() {
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  $ret = array();
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  // This update has been moved to update_fix_sessions in update.php because it
  // is needed for the basic functioning of the update script.

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  return $ret;
}

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function system_update_131() {
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  $ret = array();

  if ($GLOBALS['db_type'] == 'mysql') {
    $ret[] = update_sql("ALTER TABLE {boxes} DROP INDEX title");
    // Removed recreation of the index, which is not present in the db schema
  }
  elseif ($GLOBALS['db_type'] == 'pgsql') {
    $ret[] = update_sql("ALTER TABLE {boxes} DROP CONSTRAINT {boxes}_title_key");
  }

  return $ret;
}

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function system_update_132() {
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  /**
   * PostgreSQL only update.
   */
  $ret = array();

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  if (!variable_get('update_132_done', FALSE)) {
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    if ($GLOBALS['db_type'] == 'pgsql') {
      $ret[] = update_sql('DROP TABLE {search_total}');
      $ret[] = update_sql("CREATE TABLE {search_total} (
        word varchar(50) NOT NULL default '',
             count float default NULL)");
      $ret[] = update_sql('CREATE INDEX {search_total}_word_idx ON {search_total}(word)');

      /**
       * Wipe the search index
       */
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      include_once './'. drupal_get_path('module', 'search') .'/search.module';
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      search_wipe();
    }
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    variable_del('update_132_done');
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  }

  return $ret;
}

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function system_update_133() {
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  $ret = array();

  if ($GLOBALS['db_type'] == 'mysql') {
    $ret[] = update_sql("CREATE TABLE {contact} (
      subject varchar(255) NOT NULL default '',
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      recipients longtext NOT NULL,
      reply longtext NOT NULL
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      )");
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    $ret[] = update_sql("ALTER TABLE {users} ADD login int NOT NULL default '0'");
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  }
  elseif ($GLOBALS['db_type'] == 'pgsql') {
    // Table {contact} is changed in update_143() so I have moved it's creation there.
    // It was never created here for postgres because of errors.

    db_add_column($ret, 'users', 'login', 'int', array('default' => 0, 'not null' => TRUE));
  }

  return $ret;
}

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function system_update_134() {
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  $ret = array();
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  $ret[] = update_sql('ALTER TABLE {blocks} DROP types');
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  return $ret;
}

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function system_update_135() {
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  if (!variable_get('update_135_done', FALSE)) {
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    $result = db_query("SELECT delta FROM {blocks} WHERE module = 'aggregator'");
    while ($block = db_fetch_object($result)) {
      list($type, $id) = explode(':', $block->delta);
      db_query("UPDATE {blocks} SET delta = '%s' WHERE module = 'aggregator' AND delta = '%s'", $type .'-'. $id, $block->delta);
    }

    variable_del('update_135_done');
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  }
  return array();
}

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function system_update_136() {
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  $ret = array();

  switch ($GLOBALS['db_type']) {
    case 'pgsql':
      $ret[] = update_sql("DROP INDEX {users}_changed_idx"); // We drop the index first because it won't be renamed
      $ret[] = update_sql("ALTER TABLE {users} RENAME changed TO access");
      $ret[] = update_sql("CREATE INDEX {users}_access_idx on {users}(access)"); // Re-add the index
      break;
    case 'mysql':
    case 'mysqli':
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      $ret[] = update_sql("ALTER TABLE {users} CHANGE COLUMN changed access int NOT NULL default '0'");
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      break;
  }

  $ret[] = update_sql('UPDATE {users} SET access = login WHERE login > created');
  $ret[] = update_sql('UPDATE {users} SET access = created WHERE access = 0');
  return $ret;
}

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function system_update_137() {
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  $ret = array();

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  if (!variable_get('update_137_done', FALSE)) {
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    if ($GLOBALS['db_type'] == 'mysql') {
      $ret[] = update_sql("ALTER TABLE {locales_source} CHANGE location location varchar(255) NOT NULL default ''");
    }
    elseif ($GLOBALS['db_type'] == 'pgsql') {
      db_change_column($ret, 'locales_source', 'location', 'location', 'varchar(255)', array('not null' => TRUE, 'default' => "''"));
    }
    variable_del('update_137_done');
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  }
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  return $ret;
}

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function system_update_138() {
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  $ret = array();
  // duplicate of update_97 which never got into the default database.* files.
  $ret[] = update_sql("INSERT INTO {url_alias} (src, dst) VALUES ('node/feed', 'rss.xml')");
  return $ret;
}

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function system_update_139() {
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  $ret = array();
  switch ($GLOBALS['db_type']) {
    case 'pgsql':
      db_add_column($ret, 'accesslog', 'timer', 'int', array('not null' => TRUE, 'default' => 0));
      break;
    case 'mysql':
    case 'mysqli':
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      $ret[] = update_sql("ALTER TABLE {accesslog} ADD timer int unsigned NOT NULL default '0'");
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      break;
  }

  return $ret;
}

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function system_update_140() {
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  $ret = array();

  if ($GLOBALS['db_type'] == 'mysql') {
    $ret[] = update_sql("ALTER TABLE {url_alias} ADD INDEX (src)");
  }
  elseif ($GLOBALS['db_type'] == 'pgsql') {
    $ret[] = update_sql("CREATE INDEX {url_alias}_src_idx ON {url_alias}(src)");
  }
  return $ret;
}

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function system_update_141() {
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  $ret = array();

  variable_del('upload_maxsize_total');

  return $ret;
}

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function system_update_142() {
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  $ret = array();
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  // This update has been moved to update_fix_sessions in update.php because it
  // is needed for the basic functioning of the update script.

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  return $ret;
}

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function system_update_143() {
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  $ret = array();

  if ($GLOBALS['db_type'] == 'mysql') {
    $ret[] = update_sql("ALTER TABLE {contact} CHANGE subject category VARCHAR(255) NOT NULL ");
    $ret[] = update_sql("ALTER TABLE {contact} ADD PRIMARY KEY (category)");
  }
  elseif ($GLOBALS['db_type'] == 'pgsql') {
    // Why the table is created here? See update_133().
    $ret[] = update_sql("CREATE TABLE {contact} (
      category varchar(255) NOT NULL default '',
      recipients text NOT NULL default '',
      reply text NOT NULL default '',
      PRIMARY KEY (category))");
  }

  return $ret;
}

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function system_update_144() {
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  $ret = array();
  if ($GLOBALS['db_type'] == 'mysql') {
    $ret[] = update_sql("ALTER TABLE {node} CHANGE type type VARCHAR(32) NOT NULL");
  }
  elseif ($GLOBALS['db_type'] == 'pgsql') {
    $ret[] = update_sql("DROP INDEX {node}_type_idx"); // Drop indexes using "type" column
    $ret[] = update_sql("DROP INDEX {node}_title_idx");
    db_change_column($ret, 'node', 'type', 'type', 'varchar(32)', array('not null' => TRUE, 'default' => "''"));
    // Let's recreate the indexes
    $ret[] = update_sql("CREATE INDEX {node}_type_idx ON {node}(type)");
    $ret[] = update_sql("CREATE INDEX {node}_title_type_idx ON {node}(title,type)");
    $ret[] = update_sql("CREATE INDEX {node}_status_type_nid_idx ON {node}(status,type,nid)");
  }
  return $ret;
}

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function system_update_145() {
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  $default_theme = variable_get('theme_default', 'garland');
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  $themes = list_themes();
  if (!array_key_exists($default_theme, $themes)) {
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    variable_set('theme_default', 'garland');
    $default_theme = 'garland';
  }
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  $ret = array();

  switch ($GLOBALS['db_type']) {
    case 'pgsql':
      db_change_column($ret, 'blocks', 'region', 'region', 'varchar(64)', array('default' => "'left'", 'not null' => TRUE));
      db_add_column($ret, 'blocks', 'theme', 'varchar(255)', array('not null' => TRUE, 'default' => "''"));
      break;
    case 'mysql':
    case 'mysqli':
      $ret[] = update_sql("ALTER TABLE {blocks} CHANGE region region varchar(64) default 'left' NOT NULL");
      $ret[] = update_sql("ALTER TABLE {blocks} ADD theme varchar(255) NOT NULL default ''");
      break;
  }

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  // Initialize block data for default theme
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  $ret[] = update_sql("UPDATE {blocks} SET region = 'left' WHERE region = '0'");
  $ret[] = update_sql("UPDATE {blocks} SET region = 'right' WHERE region = '1'");
  db_query("UPDATE {blocks} SET theme = '%s'", $default_theme);

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  // Initialize block data for other enabled themes.
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  $themes = list_themes();
  foreach (array_keys($themes) as $theme) {
    if (($theme != $default_theme) && $themes[$theme]->status == 1) {
      system_initialize_theme_blocks($theme);
    }
  }

  return $ret;
}

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function system_update_146() {
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  $ret = array();

  if ($GLOBALS['db_type'] == 'mysql') {
    $ret[] = update_sql("CREATE TABLE {node_revisions}
                                SELECT nid, nid AS vid, uid, type, title, body, teaser, changed AS timestamp, format
                                FROM {node}");

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    $ret[] = update_sql("ALTER TABLE {node_revisions} CHANGE nid nid int unsigned NOT NULL default '0'");
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    $ret[] = update_sql("ALTER TABLE {node_revisions} ADD log longtext");

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    $ret[] = update_sql("ALTER TABLE {node} ADD vid int unsigned NOT NULL default '0'");
    $ret[] = update_sql("ALTER TABLE {files} ADD vid int unsigned NOT NULL default '0'");
    $ret[] = update_sql("ALTER TABLE {book} ADD vid int unsigned NOT NULL default '0'");
    $ret[] = update_sql("ALTER TABLE {forum} ADD vid int unsigned NOT NULL default '0'");
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    $ret[] = update_sql("ALTER TABLE {book} DROP PRIMARY KEY");
    $ret[] = update_sql("ALTER TABLE {forum} DROP PRIMARY KEY");
    $ret[] = update_sql("ALTER TABLE {files} DROP PRIMARY KEY");

    $ret[] = update_sql("UPDATE {node} SET vid = nid");
    $ret[] = update_sql("UPDATE {forum} SET vid = nid");
    $ret[] = update_sql("UPDATE {book} SET vid = nid");
    $ret[] = update_sql("UPDATE {files} SET vid = nid");

    $ret[] = update_sql("ALTER TABLE {book} ADD PRIMARY KEY vid (vid)");
    $ret[] = update_sql("ALTER TABLE {forum} ADD PRIMARY KEY vid (vid)");
    $ret[] = update_sql("ALTER TABLE {node_revisions} ADD PRIMARY KEY vid (vid)");
    $ret[] = update_sql("ALTER TABLE {node_revisions} ADD KEY nid (nid)");
    $ret[] = update_sql("ALTER TABLE {node_revisions} ADD KEY uid (uid)");

    $ret[] = update_sql("CREATE TABLE {old_revisions} SELECT nid, type, revisions FROM {node} WHERE revisions != ''");

    $ret[] = update_sql("ALTER TABLE {book} ADD KEY nid (nid)");
    $ret[] = update_sql("ALTER TABLE {forum} ADD KEY nid (nid)");
    $ret[] = update_sql("ALTER TABLE {files} ADD KEY fid (fid)");
    $ret[] = update_sql("ALTER TABLE {files} ADD KEY vid (vid)");
    $vid = db_next_id('{node}_nid');
    $ret[] = update_sql("INSERT INTO {sequences} (name, id) VALUES ('{node_revisions}_vid', $vid)");
  }
  else { // pgsql
    $ret[] = update_sql("CREATE TABLE {node_revisions} (
      nid integer NOT NULL default '0',
      vid integer NOT NULL default '0',
      uid integer NOT NULL default '0',
      title varchar(128) NOT NULL default '',
      body text NOT NULL default '',
      teaser text NOT NULL default '',
      log text NOT NULL default '',
      timestamp integer NOT NULL default '0',
      format int NOT NULL default '0',
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      PRIMARY KEY (vid))");
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    $ret[] = update_sql("INSERT INTO {node_revisions} (nid, vid, uid, title, body, teaser, timestamp, format)
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      SELECT nid, nid AS vid, uid, title, body, teaser, changed AS timestamp, format
      FROM {node}");
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    $ret[] = update_sql('CREATE INDEX {node_revisions}_nid_idx ON {node_revisions}(nid)');
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    $ret[] = update_sql('CREATE INDEX {node_revisions}_uid_idx ON {node_revisions}(uid)');
    $vid = db_next_id('{node}_nid');
    $ret[] = update_sql("CREATE SEQUENCE {node_revisions}_vid_seq INCREMENT 1 START $vid");

    db_add_column($ret, 'node',  'vid', 'int', array('not null' => TRUE, 'default' => 0));
    db_add_column($ret, 'files', 'vid', 'int', array('not null' => TRUE, 'default' => 0));
    db_add_column($ret, 'book',  'vid', 'int', array('not null' => TRUE, 'default' => 0));
    db_add_column($ret, 'forum', 'vid', 'int', array('not null' => TRUE, 'default' => 0));

    $ret[] = update_sql("ALTER TABLE {book} DROP CONSTRAINT {book}_pkey");
    $ret[] = update_sql("ALTER TABLE {forum} DROP CONSTRAINT {forum}_pkey");
    $ret[] = update_sql("ALTER TABLE {files} DROP CONSTRAINT {files}_pkey");

    $ret[] = update_sql("UPDATE {node} SET vid = nid");
    $ret[] = update_sql("UPDATE {forum} SET vid = nid");
    $ret[] = update_sql("UPDATE {book} SET vid = nid");
    $ret[] = update_sql("UPDATE {files} SET vid = nid");

    $ret[] = update_sql("ALTER TABLE {book} ADD PRIMARY KEY (vid)");
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    $ret[] = update_sql("ALTER TABLE {forum} ADD PRIMARY KEY (vid)");
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    $ret[] = update_sql("CREATE TABLE {old_revisions} AS SELECT nid, type, revisions FROM {node} WHERE revisions != ''");

    $ret[] = update_sql('CREATE INDEX {node}_vid_idx ON {node}(vid)');
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    $ret[] = update_sql('CREATE INDEX {forum}_nid_idx ON {forum}(nid)');
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    $ret[] = update_sql('CREATE INDEX {files}_fid_idx ON {files}(fid)');
    $ret[] = update_sql('CREATE INDEX {files}_vid_idx ON {files}(vid)');
  }

  // Move logs too.
  $result = db_query("SELECT nid, log FROM {book} WHERE log != ''");
  while ($row = db_fetch_object($result)) {
    db_query("UPDATE {node_revisions} SET log = '%s' WHERE vid = %d", $row->log, $row->nid);
  }

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  $ret[] = update_sql("ALTER TABLE {book} DROP log");
  $ret[] = update_sql("ALTER TABLE {node} DROP teaser");
  $ret[] = update_sql("ALTER TABLE {node} DROP body");
  $ret[] = update_sql("ALTER TABLE {node} DROP format");
  $ret[] = update_sql("ALTER TABLE {node} DROP revisions");
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  return $ret;
}

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function system_update_147() {
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  $ret = array();

  // this update is mysql only, pgsql should get it right in the first try.
  if ($GLOBALS['db_type'] == 'mysql') {
    $ret[] = update_sql("ALTER TABLE {node_revisions} DROP type");
  }

  return $ret;
}

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function system_update_148() {
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  $ret = array();

  // Add support for tracking users' session ids (useful for tracking anon users)
  switch ($GLOBALS['db_type']) {
    case 'pgsql':
      db_add_column($ret, 'accesslog', 'sid', 'varchar(32)', array('not null' => TRUE, 'default' => "''"));
      break;
    case 'mysql':
    case 'mysqli':
      $ret[] = update_sql("ALTER TABLE {accesslog} ADD sid varchar(32) NOT NULL default ''");
      break;
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  }
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  return $ret;
}

1140
function system_update_149() {
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  $ret = array();

  switch ($GLOBALS['db_type']) {
    case 'pgsql':
      db_add_column($ret, 'files', 'description', 'varchar(255)', array('not null' => TRUE, 'default' => "''"));
      break;
    case 'mysql':
    case 'mysqli':
      $ret[] = update_sql("ALTER TABLE {files} ADD COLUMN description VARCHAR(255) NOT NULL DEFAULT ''");
      break;
    default:
      break;
  }

  return $ret;
}

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function system_update_150() {
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  $ret = array();

  $ret[] = update_sql("DELETE FROM {variable} WHERE name = 'node_cron_last'");
  $ret[] = update_sql("DELETE FROM {variable} WHERE name = 'minimum_word_size'");
  $ret[] = update_sql("DELETE FROM {variable} WHERE name = 'remove_short'");

  $ret[] = update_sql("DELETE FROM {node_counter} WHERE nid = 0");

  $ret[] = update_sql('DROP TABLE {search_index}');
  $ret[] = update_sql('DROP TABLE {search_total}');

  switch ($GLOBALS['db_type']) {
    case 'mysqli':
    case 'mysql':
      $ret[] = update_sql("CREATE TABLE {search_dataset} (
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                           sid int unsigned NOT NULL default '0',
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                           type varchar(16) default NULL,
                           data longtext NOT NULL,
                           KEY sid_type (sid, type)
                           )");

      $ret[] = update_sql("CREATE TABLE {search_index} (
                           word varchar(50) NOT NULL default '',
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                           sid int unsigned NOT NULL default '0',
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                           type varchar(16) default NULL,
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                           fromsid int unsigned NOT NULL default '0',
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                           fromtype varchar(16) default NULL,
                           score float default NULL,
                           KEY sid_type (sid, type),
                           KEY from_sid_type (fromsid, fromtype),
                           KEY word (word)
                           )");

      $ret[] = update_sql("CREATE TABLE {search_total} (
                           word varchar(50) NOT NULL default '',
                           count float default NULL,
                           PRIMARY KEY word (word)
                           )");
      break;
    case 'pgsql':
      $ret[] = update_sql("CREATE TABLE {search_dataset} (
        sid integer NOT NULL default '0',
        type varchar(16) default NULL,
        data text NOT NULL default '')");
      $ret[] = update_sql("CREATE INDEX {search_dataset}_sid_type_idx ON {search_dataset}(sid, type)");

      $ret[] = update_sql("CREATE TABLE {search_index} (
        word varchar(50) NOT NULL default '',
        sid integer NOT NULL default '0',
        type varchar(16) default NULL,
        fromsid integer NOT NULL default '0',
        fromtype varchar(16) default NULL,
        score float default NULL)");
      $ret[] = update_sql("CREATE INDEX {search_index}_sid_type_idx ON {search_index}(sid, type)");
      $ret[] = update_sql("CREATE INDEX {search_index}_fromsid_fromtype_idx ON {search_index}(fromsid, fromtype)");
      $ret[] = update_sql("CREATE INDEX {search_index}_word_idx ON {search_index}(word)");

      $ret[] = update_sql("CREATE TABLE {search_total} (
        word varchar(50) NOT NULL default '',
        count float default NULL,
        PRIMARY KEY(word))");
      break;
    default:
      break;
  }
  return $ret;
}

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function system_update_151() {
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  $ret = array();

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  $ts = variable_get('theme_settings', NULL);
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  // set up data array so we can loop over both sets of links
  $menus = array(0 => array('links_var' => 'primary_links',
                            'toggle_var' => 'toggle_primary_links',
                            'more_var' => 'primary_links_more',
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                            'menu_name' => 'Primary links',
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                            'menu_var' => 'menu_primary_menu',
                            'pid' => 0),
                 1 => array('links_var' => 'secondary_links',
                            'toggle_var' => 'toggle_secondary_links',
                            'more_var' => 'secondary_links_more',
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                            'menu_name' => 'Secondary links',
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                            'menu_var' => 'menu_secondary_menu',
                            'pid' => 0));

  for ($loop = 0; $loop <= 1 ; $loop ++) {
    // create new Primary and Secondary links menus
    $menus[$loop]['pid'] = db_next_id('{menu}_mid');
    $ret[] = update_sql("INSERT INTO {menu} (mid, pid, path, title, description, weight, type) " .
                         "VALUES ({$menus[$loop]['pid']}, 0, '', '{$menus[$loop]['menu_name']}', '', 0, 115)");

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    // Gather links from various settings into a single array.
    $phptemplate_links = variable_get("phptemplate_". $menus[$loop]['links_var'], array());
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    if (empty($phptemplate_links)) {
      $phptemplate_links = array('text' => array(), 'link' => array());
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    }
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    if (isset($ts) && is_array($ts)) {
      if (is_array($ts[$menus[$loop]['links_var']])) {
        $theme_links = $ts[$menus[$loop]['links_var']];
      }
      else {
        // Convert old xtemplate style links.
        preg_match_all('/<a\s+.*?href=[\"\'\s]?(.*?)[\"\'\s]?>(.*?)<\/a>/i', $ts[$menus[$loop]['links_var']], $urls);
        $theme_links['text'] = $urls[2];
        $theme_links['link'] = $urls[1];
      }
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    }
    else {
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      $theme_links = array('text' => array(), 'link' => array());
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    }
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    $links['text'] = array_merge($phptemplate_links['text'], $theme_links['text']);
    $links['link'] = array_merge($phptemplate_links['link'], $theme_links['link']);
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    // insert all entries from theme links into new menus
    $num_inserted = 0;
    for ($i = 0; $i < count($links['text']); $i++) {
      if ($links['text'][$i] != "" && $links['link'][$i] != "") {
        $num_inserted ++;
        $node_unalias = db_fetch_array(db_query("SELECT src FROM {url_alias} WHERE dst = '%s'", $links['link'][$i]));
        if (isset($node_unalias) && is_array($node_unalias)) {
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          $href = $node_unalias['src'];
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        }
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        else {
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          $href = $links['link'][$i];
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        }

        $mid = db_next_id('{menu}_mid');
        $ret[] = update_sql("INSERT INTO {menu} (mid, pid, path, title, description, weight, type) " .
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                             "VALUES ($mid, {$menus[$loop]['pid']}, '" . db_escape_string($href) .
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                             "', '" . db_escape_string($links['text'][$i]) .
                             "', '" . db_escape_string($links['description'][$i]) . "', 0, 118)");
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      }
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    }
    // delete Secondary links if not populated.
    if ($loop == 1 && $num_inserted == 0) {
      db_query("DELETE FROM {menu} WHERE mid={$menus[$loop]['pid']}");
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    }

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    // Set menu_primary_menu and menu_primary_menu variables if links were
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    // imported. If the user had links but the toggle display was off, they
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    // will need to disable the new links manually in admins/settings/menu.
    if ($num_inserted == 0) {
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      variable_set($menus[$loop]['menu_var'], 0);
    }
    else {
      variable_set($menus[$loop]['menu_var'], $menus[$loop]['pid']);
    }
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    variable_del('phptemplate_' .$menus[$loop]['links_var']);
    variable_del('phptemplate_'. $menus[$loop]['links_var'] .'_more');
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    variable_del($menus[$loop]['toggle_var']);
    variable_del($menus[$loop]['more_var']);
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    // If user has old xtemplate links in a string, leave them in the var.
    if (isset($ts) && is_array($ts) && is_array($ts[$menus[$loop]['links_var']])) {
      variable_del($menus[$loop]['links_var']);
    }
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  }

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  if (isset($ts) && is_array($ts)) {
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    variable_set('theme_settings', $ts);
  }

  $ret[] = update_sql("UPDATE {system} SET status = 1 WHERE name = 'menu'");

  return $ret;
}

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function system_update_152() {
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  $ret = array();

  // Postgresql only update
  switch ($GLOBALS['db_type']) {
    case 'pgsql':
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      $ret[] = update_sql("ALTER TABLE {forum} DROP shadow");
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      break;
    case 'mysql':
    case 'mysqli':
      break;
  }

  return $ret;
}

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function system_update_153(){
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  $ret = array();
  switch ($GLOBALS['db_type']) {
    case 'pgsql':
      $ret[] = update_sql("ALTER TABLE {contact} DROP CONSTRAINT {contact}_pkey");
      $ret[] = update_sql("CREATE SEQUENCE {contact}_cid_seq");
      db_add_column($ret, 'contact', 'cid', 'int', array('not null' => TRUE, 'default' => "nextval('{contact}_cid_seq')"));
      $ret[] = update_sql("ALTER TABLE {contact} ADD PRIMARY KEY (cid)");
      $ret[] = update_sql("ALTER TABLE {contact} ADD CONSTRAINT {contact}_category_key UNIQUE (category)");
      break;
    case 'mysql':
    case 'mysqli':
      $ret[] = update_sql("ALTER TABLE {contact} DROP PRIMARY KEY");
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      $ret[] = update_sql("ALTER TABLE {contact} ADD COLUMN cid int NOT NULL PRIMARY KEY auto_increment");
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      $ret[] = update_sql("ALTER TABLE {contact} ADD UNIQUE KEY category (category)");
      break;
  }
  return $ret;
}

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function system_update_154() {
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  $ret = array();
  switch ($GLOBALS['db_type']) {
    case 'pgsql':
      db_add_column($ret, 'contact', 'weight', 'smallint', array('not null' => TRUE, 'default' => 0));
      db_add_column($ret, 'contact', 'selected', 'smallint', array('not null' => TRUE, 'default' => 0));
      break;
    case 'mysql':
    case 'mysqli':
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      $ret[] = update_sql("ALTER TABLE {contact} ADD COLUMN weight tinyint NOT NULL DEFAULT 0");
      $ret[] = update_sql("ALTER TABLE {contact} ADD COLUMN selected tinyint NOT NULL DEFAULT 0");
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      break;
  }
  return $ret;
}

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function system_update_155() {
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  $ret = array();

  // Postgresql only update
  switch ($GLOBALS['db_type']) {
    case 'pgsql':
      $ret[] = update_sql("DROP TABLE {cache}");
      $ret[] = update_sql("CREATE TABLE {cache} (
        cid varchar(255) NOT NULL default '',
        data bytea default '',
        expire integer NOT NULL default '0',
        created integer NOT NULL default '0',
        headers text default '',
        PRIMARY KEY (cid)
        )");
      $ret[] = update_sql("CREATE INDEX {cache}_expire_idx ON {cache}(expire)");
      break;
    case 'mysql':
    case 'mysqli':
      break;
  }

  return $ret;
}

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function system_update_156() {
  $ret = array();
  $ret[] = update_sql("DELETE FROM {cache}");
  system_themes();
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  return $ret;
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}
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function system_update_157() {
  $ret = array();
  $ret[] = update_sql("DELETE FROM {url_alias} WHERE src = 'node/feed' AND dst = 'rss.xml'");
  $ret[] = update_sql("INSERT INTO {url_alias} (src, dst) VALUES ('rss.xml', 'node/feed')");
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  return $ret;
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}