Disable callbacks on save mainly focusing on not calling aftersave

Cakephp:::callback false

saveField(string $fieldName, string $fieldValue, array $params = array())
$params array can have any of the following available options as keys:
validate Set to true/false to enable disable validation.
callbacks Set to false to disable callbacks. Using ‘before’ or ‘after’ will enable only those callbacks.

$leaveSettings['WeekDiff'] = 
          (int)floor(date_diff(new DateTime($leaveSettings['sessionStartDate']), new DateTime($presentDay))->days/7);