Misleading passage in user_guide

[eluser]Michael Wales[/eluser]

I’ve been guilty of relying on the database class cleaning by passing uri segments to the query but lets say the segment needs to be a number but it is a string with validation the rendering should be stopped before querying the database. With the current validation library it’s impossible to do

Code:

function getPost($id = NULL) {
  if (($id !== NULL) && (is_int($id)) {
    // Show Post
  } else {
    redirect('');
    return;
  }
}

Maybe I am missing something or the intent of your comments xwero?