[7.0] Share and Embed options not working

[Carlos Guerrero]

Whenever I try to "share" or "embed" a document in OpenERP 7.0 it throws this on the server:

2013-01-31 20:52:00,236 28993 ERROR openerp7 openerp.netsvc: has_share() takes at least 4 arguments (4 given)
Traceback (most recent call last):
  File "/Users/guerrerocarlos/Repositorios/openerp-7.0-20130129-000102/openerp/netsvc.py", line 289, in dispatch_rpc
    result = ExportService.getService(service_name).dispatch(method, params)
  File "/Users/guerrerocarlos/Repositorios/openerp-7.0-20130129-000102/openerp/service/web_services.py", line 614, in dispatch
    res = fn(db, uid, *params)
  File "/Users/guerrerocarlos/Repositorios/openerp-7.0-20130129-000102/openerp/osv/osv.py", line 169, in execute_kw
    return self.execute(db, uid, obj, method, *args, **kw or {})
  File "/Users/guerrerocarlos/Repositorios/openerp-7.0-20130129-000102/openerp/osv/osv.py", line 123, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/Users/guerrerocarlos/Repositorios/openerp-7.0-20130129-000102/openerp/osv/osv.py", line 179, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/Users/guerrerocarlos/Repositorios/openerp-7.0-20130129-000102/openerp/osv/osv.py", line 166, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/Users/guerrerocarlos/Repositorios/openerp-7.0-20130129-000102/openerp/addons/share/wizard/share_wizard.py", line 697, in go_step_2
    self._check_preconditions(cr, uid, wizard_data, context=context)
  File "/Users/guerrerocarlos/Repositorios/openerp-7.0-20130129-000102/openerp/addons/portal/wizard/share_wizard.py", line 56, in _check_preconditions
    return super(share_wizard_portal, self)._check_preconditions(cr, uid, wizard_data, context=context)
  File "/Users/guerrerocarlos/Repositorios/openerp-7.0-20130129-000102/openerp/addons/share/wizard/share_wizard.py", line 664, in _check_preconditions
    self._assert(self.has_share(cr, uid, context=context),
TypeError: has_share() takes at least 4 arguments (4 given)

I checked the code and seems that the function "has_share" has a weird variable called "unused_param", here is the function:

    def has_share(self, cr, uid, unused_param, context=None):
        return self.has_group(cr, uid, module='share', group_xml_id='group_share_user', context=context)

So when it calls has_group I added a variable to fill that gap, so that the context is recieved properly in has_share, but now the problem is this:

2013-01-31 21:24:49,961 29778 ERROR openerp7 openerp.addons.share.wizard.share_wizard: Failed to create share access
Traceback (most recent call last):
  File "/Users/guerrerocarlos/Repositorios/openerp-7.0-20130129-000102/openerp/addons/share/wizard/share_wizard.py", line 653, in _create_indirect_sharing_rules
    rule_name=rule_name, restrict=True, context=context)
  File "/Users/guerrerocarlos/Repositorios/openerp-7.0-20130129-000102/openerp/addons/share/wizard/share_wizard.py", line 617, in _create_or_combine_sharing_rule
    org_domain = expression.normalize(eval(rule.domain_force, eval_ctx))
AttributeError: 'module' object has no attribute 'normalize'
2013-01-31 21:24:49,962 29778 ERROR openerp7 openerp.netsvc: No se ha podido crear el acceso compartido.

So it seems that "expression", that is imported from openerp.osv does not have a "normalize" function, and dunno where that might be fixed.