Kohana 3.3 ORM关系

Question

i'm starting with Kohana 3.3 ORM trying to apply it to an existing internal project.

The project is in use, so i can't change the schema's names. The current schema definition is the following:

Table: utente
idUtente VARCHAR PK
nome VARCHAR
// other fields

Table: sessione
idSessione SERIAL PK
idUtente VARCHAR (FK to utente.idUtente)
// other fields

Table: ruolo
idRuolo SERIAL PK
nome VARCHAR
//other fields

Table: ruoloutente
idRuolo PK (FK to ruolo.idRuolo)
idUtente PK (FK to utente.idUtente)
scadenza DATETIME
// other fields

Now i defined custom table name and custom primary key name into the models and if i use ORM::factory('Utente', 'Marco'); (or any other model) everything is going fine.

class Model_Utente extends ORM {
protected $_table_name ='utente';
protected $_primary_key ='idUtente';
protected $_has_many =
    array(
        'ruoli' => array(
            'model' => 'Ruolo',
            'far_key' => 'idRuolo',
            'foreign_key' => 'idUtente',
            'through' => 'ruoloutente',
        ),
        'sessioni' => array(
            'model' => 'Sessione',
            'far_key' => 'idSessione',
            'foreign_key' => 'idUtente',
        ),
    );
// class logic here
}

class Model_Ruolo extends ORM {
protected $_table_name ='ruolo';
protected $_primary_key ='idRuolo';
protected $_has_many =
    array(
        'utenti' => array(
            'model' => 'Utente',
            'far_key' => 'idUtente',
            'foreign_key' => 'idRuolo',
            'through' => 'ruoloutente',
        ),
    );
// class logic here
}

class Model_Sessione extends ORM {
protected $_table_name ='sessione';
protected $_primary_key ='idSessione';
protected $_belongs_to =
    array(
        'utente' => array(
            'model' => 'Utente',
            'far_key' => 'idUtente',
            'foreign_key' => 'idUtente',
        ),
    );
// class logic here
}

Now from an instance of Utente i execute

$this->ruoli->find_all()

and

 $this->sessioni->find_all()  

but i obtain an empty model on both.. The generated query is correct on both finding, query executed directly in SQL returns 4 results on ruoli and two results on sessioni..

Answer 1

Found a solution

My problem was that i supposed that find() and find_all() methods would also perisist in the caller object the query results instead of only return the result. Many thanks to every one