Apexの承認プロセス・ロックとロック解除

01_UnLockResultSample.page

Account acct = [SELECT Id from Account WHERE ID = '001B0000003nOuy' LIMIT 1];
Approval.UnLockResult result = Approval.unlock(acct, false);

02_LockResultSample.page

Account acct = [SELECT Id from Account WHERE ID = '001B0000003nOuy' LIMIT 1];
Approval.LockResult result = Approval.lock(acct, false);

03_CheckResult.page

Account acc = [SELECT Id from Account WHERE ID = '001B0000003o2Xd' LIMIT 1];
Approval.LockResult result = Approval.lock(acc, false);

if (result.isSuccess()) {
  // Operation was successful, so get the ID of the record that was processed
  System.debug('Successfully locked Account with ID: ' + result.getId());
} else {
  // Operation failed, so get all errors                
  for(Database.Error err : result.getErrors()) {
    System.debug('The following error has occurred.');                    
    System.debug(err.getStatusCode() + ': ' + err.getMessage());
    System.debug('Account fields that affected this error: ' + err.getFields());
  }
}