Doctrine Behavior / Templates: Is there a way overwrite or load data into the invoking Doctrine_Record from a Doctrine_Template? -

hy!

i'm new doctrine library. i'm trying take advantage of doctrine behavior (templating) system build authenticable behavior ran few problems.

this how wanted declare it:

class baseadminuser extends doctrine_record{ public function settabledefinition(){    // ...    }  public function setup(){   // ...   $this->actas(new doctrine_template_authenticatable());   } } 

this how wanted use it:

in admin bootstrap file:

// ... $admin = new adminuser(); if(!$admin->login_check()){   redirect("login.php"); }else{   // $admin->id available   } 

in admin login.php page:

// ... if($data = $_post){   $admin->login($data);    } 

i wanted template use native php sessions (using $_session) following:

1. upon login set session , save record doctrine_core::hydrate_array in
2. upon instantiation of record , template check if session data exists
   , load invoking record id session

one approach tried re-route $invoker. doesn't work.

 class doctrine_template_authenticatable extends doctrine_template{  // ... public function setup(){     // ...     if(isset($session_data['id'])){        $invoker = &$this->getinvoker();        $invoker = $this->gettable()->find($session_data['id']);        }     } // ... } 

i've looked trough doctrine_record api documentation , not find function load (hydrate) different table row object based on id or otherwise.
there's fromarray($arr) , hydrate($arr, $overwrite):

doctrine_record::fromarray(string array, bool deep)) doctrine_record::hydrate(array data, boolean overwritelocalchanges) 

but fake , load data without id.

$this->getinvoker()->hydrate($session_data);   // (...) echo $admin->id; // empty   $this->getinvoker()->fromarray($session_data); // uncaught exception 'doctrine_table_exception' message 'unknown relation alias id' 

my question is:
there way overwrite or load data invoking doctrine_record doctrine_template ?