update_fix_schema_version

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./update.php, строка 138

Версии
5
update_fix_schema_version()

If the schema version for Drupal core is stored in the variables table (4.6.x and earlier) move it to the schema_version column of the system table.

This function may be removed when update 156 is removed, which is the last update in the 4.6 to 4.7 migration.

Код

<?php
function update_fix_schema_version() {
  if ($update_start = variable_get('update_start', FALSE)) {
    // Some updates were made to the 4.6 branch and 4.7 branch. This sets
    // temporary variables to prevent the updates from being executed twice and
    // throwing errors.
    switch ($update_start) {
      case '2005-04-14':
        variable_set('update_132_done', TRUE);
        break;

      case '2005-05-06':
        variable_set('update_132_done', TRUE);
        variable_set('update_135_done', TRUE);
        break;

      case '2005-05-07':
        variable_set('update_132_done', TRUE);
        variable_set('update_135_done', TRUE);
        variable_set('update_137_done', TRUE);
        break;

    }
    // The schema_version column (added below) was changed during 4.7beta.
    // Update_170 is only for those beta users.
    variable_set('update_170_done', TRUE);

    $sql_updates = array(
      '2004-10-31: first update since Drupal 4.5.0 release' => 110,
      '2004-11-07' => 111, '2004-11-15' => 112, '2004-11-28' => 113,
      '2004-12-05' => 114, '2005-01-07' => 115, '2005-01-14' => 116,
      '2005-01-18' => 117, '2005-01-19' => 118, '2005-01-20' => 119,
      '2005-01-25' => 120, '2005-01-26' => 121, '2005-01-27' => 122,
      '2005-01-28' => 123, '2005-02-11' => 124, '2005-02-23' => 125,
      '2005-03-03' => 126, '2005-03-18' => 127, '2005-03-21' => 128,
      // The following three updates were made on the 4.6 branch
      '2005-04-14' => 128, '2005-05-06' => 128, '2005-05-07' => 128,
      '2005-04-08: first update since Drupal 4.6.0 release' => 129,
      '2005-04-10' => 130, '2005-04-11' => 131, '2005-04-14' => 132,
      '2005-04-24' => 133, '2005-04-30' => 134, '2005-05-06' => 135,
      '2005-05-08' => 136, '2005-05-09' => 137, '2005-05-10' => 138,
      '2005-05-11' => 139, '2005-05-12' => 140, '2005-05-22' => 141,
      '2005-07-29' => 142, '2005-07-30' => 143, '2005-08-08' => 144,
      '2005-08-15' => 145, '2005-08-25' => 146, '2005-09-07' => 147,
      '2005-09-18' => 148, '2005-09-27' => 149, '2005-10-15' => 150,
      '2005-10-23' => 151, '2005-10-28' => 152, '2005-11-03' => 153,
      '2005-11-14' => 154, '2005-11-27' => 155, '2005-12-03' => 156,
    );

    // Add schema version column
    switch ($GLOBALS['db_type']) {
      case 'pgsql':
        $ret = array();
        db_add_column($ret, 'system', 'schema_version', 'smallint', array('not null' => TRUE, 'default' => -1));
        break;

      case 'mysql':
      case 'mysqli':
        db_query('ALTER TABLE {system} ADD schema_version smallint(3) not null default -1');
        break;
    }
    // Set all enabled (contrib) modules to schema version 0 (installed)
    db_query('UPDATE {system} SET schema_version = 0 WHERE status = 1');

    // Set schema version for core
    drupal_set_installed_schema_version('system', $sql_updates[$update_start]);
    variable_del('update_start');
  }
}
?>
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