how to chain method

Question

I'm using https://github.com/j4mie/idiorm and query DB like this:

$result = ORM::for_table('users')->join('messages', array('users.uid', '=', 'messages.uid'))->where('mid', '5')->find_many();

and now i wanna to add a condition:

$result = ORM::for_table('users')->join('messages', array('users.uid', '=', 'messages.uid'));
if(true) {
  $result->where('mid', '5');
}
$result->find_many();

However it doesn't work.

Answer 1

Expanding on air4x's comment:

The interface to these methods is considered "fluent" or "fluid" because they return themselves (so the join() function returns the ORM object with the join embedded in it, instead of say, returning true or false)

$result->where('mid, '5');

..will set the where but then the object is discarded.

$result = $result->where('mid', '5');

..will save the modified object.