drupal_get_installed_schema_version
function drupal_get_installed_schema_version
drupal_get_installed_schema_version($module, $reset = FALSE, $array = FALSE)
Returns the currently installed schema version for a module.
Parameters
$module: A module name.
$reset: Set to TRUE after modifying the system table.
$array: Set to TRUE if you want to get information about all modules in the system.
Return value
The currently installed schema version, or SCHEMA_UNINSTALLED if the module is not installed.
File
- includes/install.inc, line 146
- API functions for installing modules and themes.
Code
function drupal_get_installed_schema_version($module, $reset = FALSE, $array = FALSE) { static $versions = array(); if ($reset) { $versions = array(); } if (!$versions) { $versions = array(); $result = db_query("SELECT name, schema_version FROM {system} WHERE type = :type", array(':type' => 'module')); foreach ($result as $row) { $versions[$row->name] = $row->schema_version; } } if ($array) { return $versions; } else { return isset($versions[$module]) ? $versions[$module] : SCHEMA_UNINSTALLED; } }
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https://api.drupal.org/api/drupal/includes!install.inc/function/drupal_get_installed_schema_version/7.x