dblog_cron()
Implements hook_cron().
Controls the size of the log table, paring it to 'dblog_row_limit' messages.
File
- core/modules/dblog/dblog.module, line 60
- System monitoring and logging for administrators.
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | function dblog_cron() { // Cleanup the watchdog table. $row_limit = \Drupal::config('dblog.settings')->get('row_limit'); // For row limit n, get the wid of the nth row in descending wid order. // Counting the most recent n rows avoids issues with wid number sequences, // e.g. auto_increment value > 1 or rows deleted directly from the table. if ($row_limit > 0) { $min_row = db_select('watchdog', 'w') ->fields('w', array('wid')) ->orderBy('wid', 'DESC') ->range($row_limit - 1, 1) ->execute()->fetchField(); // Delete all table entries older than the nth row, if nth row was found. if ($min_row) { db_delete('watchdog') ->condition('wid', $min_row, '<') ->execute(); } }} |
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