function drupal_get_installed_schema_version in Drupal 4

Same name and namespace in other branches

1. 8 core/includes/schema.inc \drupal_get_installed_schema_version()
2. 5 includes/install.inc \drupal_get_installed_schema_version()
3. 6 includes/install.inc \drupal_get_installed_schema_version()
4. 7 includes/install.inc \drupal_get_installed_schema_version()
5. 9 core/includes/schema.inc \drupal_get_installed_schema_version()

Returns the currently installed schema version for a module.

Parameters

$module: A module name.

Return value

The currently installed schema version.

5 calls to drupal_get_installed_schema_version()

system_modules_submit in modules/system.module

update_fix_sessions in ./update.php

System update 130 changes the sessions table, which breaks the update script's ability to use session variables. This changes the table appropriately.

update_fix_watchdog in ./update.php

System update 142 changes the watchdog table, which breaks the update script's ability to use logging. This changes the table appropriately.

update_fix_watchdog_115 in ./update.php

System update 115 changes the watchdog table, which breaks the update script's ability to use logging. This changes the table appropriately.

update_selection_page in ./update.php

File

includes/install.inc, line 52

Code

function drupal_get_installed_schema_version($module, $reset = FALSE) {
  static $versions;
  if ($reset) {
    unset($versions);
  }
  if (!$versions) {
    $versions = array();
    $result = db_query("SELECT name, schema_version FROM {system} WHERE type = 'module'");
    while ($row = db_fetch_object($result)) {
      $versions[$row->name] = $row->schema_version;
    }
  }
  return $versions[$module];
}