[5.0] cannot inherit a _constraint

[Christophe CHAUVET]

OpenObject: 5.0
Server revno: 2038
Addons revno: 2711
Client revno: 1069

I just wants to inherit a constraint (_constraint) but the code below doesn't execute.
I think the bug 330427 is to be the same as mine.

--------------8<---------------8<-------------
from osv import osv
from osv import fields

class product_pricelist_version(osv.osv):
    _inherit = 'product.pricelist.version'

    def _check_date(self, cursor, user, ids):
        print 'Inherit OK'
        return True

product_pricelist_version()
--------------8<---------------8<-------------

Distribution: Ubuntu
Version: 9.10 (karmic)
Python 2.6.4

Locale:
  LANG=fr_FR.UTF-8

[Stephane Wirtel (OpenERP) (stephane-openerp)]

I'm sorry, but it's not a bug. In the definition of a constraint in OpenERP, you give the reference to the method and not a name.

def _check_date(self, cr, uid, ids, context=None):
    pass

_constraints = [
   (_check_date, "message", []),
]

In this case, _check_date is a reference to the _check_date method.

You can use an other way to solve this problem

1. define your method;
In the parent object, you can define a method

def _nested_check_date(self, cr, uid, ids, context=None):
    return True

def _check_date(self, cr, uid, ids, context=None):
    return self._nested_check_date(cr, uid, ids, context=context)

2. in the other object:
you can redefined the _nested_check_date method.

[Stephane Wirtel (OpenERP) (stephane-openerp)]

Now, we can propose an other approach to define a constraint for the next release.

[Christophe CHAUVET (christophe-chauvet)]

Hi Stephane

Ok it's not a bug, but how can i made in my module, because in the product module there is no implementation as you define in comment #1

Regards,

[Christophe CHAUVET (christophe-chauvet)]

Hi Stephane

I have fix this issue in addons with your suggestion

Regards,