hook_user_delete not being called

Question

I'm trying to invoke hook_user_delete and for some reason it isn't getting called. I have essentially the same function in hook_user_cancel and that gets called correctly. Basically, I go into the user edit form, then down to the bottom to "Cancel Account". From the next page, if I click "Disable the account and keep its content.", the hook_user_cancel function gets called, but if I pick "Delete the account and its content.", neither the hook_user_cancel or the hook_user_delete functions get called. I checked this by placing a dpm at the beginning of each function. My code looks like the following:

function carrier_pigeon_user_delete($account){
$num_deleted = 0;

if(is_numeric($account->uid)) {
  $num_deleted = db_delete('carrier_pigeon_subscription')
      ->condition('uid',account->uid)
      ->execute();
}
dpm($num_deleted);
}

function carrier_pigeon_user_cancel($edit, $account, $method) {
$num_deleted = 0;

if(is_numeric($account->uid)) {
    $num_deleted = db_delete('carrier_pigeon_subscription')
            ->condition('uid', $account->uid)
            ->execute();
}   
dpm($num_deleted);
}

Sorry about the formatting. Is there something I'm doing wrong here? My impression is that I need both of these to cover my bases, but I can't seem to get the first one to get called.

Answer 1

I followed below steps and it is working when I cancel account by "delete user and its content"

/**
 * Implements hook_user_delete().
 */
function MYMODULE_user_delete($account) {
  watchdog('MYMODULE', 'hello, user: !username, user id: !uid, has been deleted', array(
    '!username' => $account->name,
    '!uid' => $account->uid
  ));
}

Go to admin/reports/dblog check if the message displayed there. Mine is showing.

Answer 2

I have just fixed the problem. Your code works, however I had to disable and enable the module in order to Drupal calls my user_delete hook.

I hope this helps others with the same problem.