many2many some noob doubts

Kelbethor · **Joined:** Thu Feb 17, 2011 8:32 pm **Posts:** 24

If I understand the documentation this should work:
class A:
columns{
col1,
col2,
col3 -- m2m (through A_B_rel) --> B
}

class B:
columns{
col1,
col2,
col3 -- m2m (through A_B_rel) --> A
}

This should create A and B objects and so A_B_rel; am I right, or something missing?

Another one:
is it posible to extend A_B_rel like other model?
I mean:
class A_B_rel_data:
_name='A_B_rel'
_inherit='A_B_rel'
_columns{
col1,
col2
}
??
I had no success following documentation and searching through forums ended with diferent workarounds and totally confused... So any clues about this would be great.

AH! And finally:
is it posible to use a functional field as a model _rec_name field?

Thanks in advance...

Kelbethor · **Joined:** Thu Feb 17, 2011 8:32 pm **Posts:** 24

I'm going mad...

I'm tryin with this:

Code:

class mtom_objecta:
    _name='mtom.objecta'
    _columns={
        'data':fields.char('Valor de a', size=5),
        'bs_ids': fields.many2many('mtom.objectb','mtom_abobjects_rel','objecta_id','objectb_id','beses')
    }
mtom_objecta()

class mtom_objectb:
    _name='mtom.objectb'
    _columns={
        'data':fields.char('Valor de b', size=5),
        'as_ids':fields.many2many('mtom.objecta','mtom_abobjects_rel','objectb_id','objecta_id','ases')
    }
mtom_objectb()

But It doesn't work...

Plz help...

gdaddy · **Posted:** Fri Jun 24, 2011 2:15 pm

you need to inherit from osv.osv for a start.

e.g.

class objecta(osv.osv)

Kelbethor · **Joined:** Thu Feb 17, 2011 8:32 pm **Posts:** 24

OMG! I can't believe it! I need to rest more... (how embarrasing)
Thanks a lot!!! And sorry for the stupid question...

Kelbethor · **Joined:** Thu Feb 17, 2011 8:32 pm **Posts:** 24

Well... I managed to build models as needed:

Code:

class manytest_ambos_rel(osv.osv):
    _name='manytest.ambos.rel'
    _columns={
        'primero_id':fields.integer('Primero'),
        'segundo_id':fields.integer('Segundo'),
        'value':fields.float('Valor', digits=(16,3))
    }
manytest_ambos_rel()

class manytest_primero(osv.osv):
    _name='manytest.primero'
    _columns={
        'name':fields.char('Nombre Primero',size=15),
    }
manytest_primero()

class manytest_segundo(osv.osv):
    _name='manytest.segundo'
    _columns={
        'name':fields.char('Nombre Segundo',size=15),
        'primero_ids':fields.many2many('manytest.primero','manytest_ambos_rel','segundo_id', 'primero_id','Primeros')
    }
manytest_segundo()

class manytest_primero_x(osv.osv):
    _name='manytest.primero'
    _inherit='manytest.primero'
    _columns={
        'segundo_ids':fields.many2many('manytest.segundo','manytest_ambos_rel','primero_id', 'segundo_id','Segundos')
    }
manytest_primero_x()

Now I want to show in the segundo_ids m2m widget related manytest.primero and value from manytest.ambos.rel corresponding to relation between them.

I tried to asign a custom view for manytest.ambos.rel model but I can't get nothing to work... Just name field... (in both tree and form view) I have no clues about this so I would apreciate any help.

Tanks again to all

Guyzai · **Joined:** Fri Jul 01, 2011 11:53 am **Posts:** 1

Hi,

I made this field many2one called name.
And i want to take name to fill in other field automaticly
but i don't know how to do that