dblog.module

<?php


/**
 * @file
 */

/**
 * Gathers a list of uniquely defined database log message types.
 *
 * @return array
 *   List of uniquely defined database log message types.
 */
function _dblog_get_message_types() {
    return \Drupal::database()->query('SELECT DISTINCT([type]) FROM {watchdog} ORDER BY [type]')
        ->fetchAllKeyed(0, 0);
}