fields.function with type=M2O and store=True fails to be read on read().

just want to correct myself
after comparing a printable with not printable line I believe it's not data dependant.

the lines with fixed text from the following statement are printable the others not.

    def _partner_name(self, cr, uid, ids, field_name, arg, context={}):
         result = {}
         for partner in self.browse(cr, uid, ids, context):
             #pname=''
             pname = None
             if partner.partner_id and not (partner.sale_line_id or partner.purchase_line_id) :
                   pname = partner.partner_id.name
             if partner.sale_line_id:
                 pname = partner.sale_line_id.order_id.partner_id.name
             if partner.purchase_line_id:
                 pname = partner.purchase_line_id.order_id.partner_id.name
             if not pname and partner.location_id.usage == 'internal':
                 if partner.location_dest_id.usage == 'production':
                     pname = ' Used for Production'
                 if partner.location_dest_id.usage == 'inventory':
                     pname = ' Inventory'
                 if partner.location_dest_id.usage == 'internal':
                     pname = ' Internal'
             if not pname and (partner.location_id.usage == 'production' and partner.location_dest_id.usage == 'internal' ):
                 pname = ' Production'

             result[partner.id] = pname
         return result

....
        'partner_name' : fields.function(_partner_name, method=True, string="Partner",type='char', size=132,store=True ),

Hi Dr. Ferdinand,

This looks like a problem of fields.function with store attribute and relation M2O.
I investigated further and came to know that, the field is not treated as a foreign key reference , but just an integer.

I will post more as I come across a valid solution.

Thanks.

Hello Dr. Ferdinand,

    I have found a solution for this. I have attached a patch would you please check it and notify us.

Thanks.

No - with the patch "stock moves" raise an error

Environment Information :
System : Linux-2.6.31.12-0.2-desktop-x86_64-with-SuSE-11.2-x86_64
OS Name : posix
LSB Version: core-2.0-noarch:core-3.2-noarch:core-4.0-noarch:core-2.0-x86_64:core-3.2-x86_64:core-4.0-x86_64:desktop-4.0-amd64:desktop-4.0-noarch:graphics-2.0-amd64:graphics-2.0-noarch:graphics-3.2-amd64:graphics-3.2-noarch:graphics-4.0-amd64:graphics-4.0-noarch
Distributor ID: SUSE LINUX
Description: openSUSE 11.2 (x86_64)
Release: 11.2
Codename: n/a
Operating System Release : 2.6.31.12-0.2-desktop
Operating System Version : #1 SMP PREEMPT 2010-03-16 21:25:39 +0100
Operating System Architecture : 64bit
Operating System Locale : en_US.UTF8
Python Version : 2.6.2
OpenERP-Client Version : 5.0.6
Last revision No. & ID :Bazaar Package not Found !Traceback (most recent call last):
  File "/home/terp/OpenERP/branch/server/5.0/bin/netsvc.py", line 247, in dispatch
    result = LocalService(service_name)(method, *params)
  File "/home/terp/OpenERP/branch/server/5.0/bin/netsvc.py", line 76, in __call__
    return getattr(self, method)(*params)
  File "/home/terp/OpenERP/branch/server/5.0/bin/addons/base_module_record/base_module_record.py", line 38, in execute
    res = super(recording_objects_proxy, self).execute(*args, **argv)
  File "/home/terp/OpenERP/branch/server/5.0/bin/addons/audittrail/audittrail.py", line 364, in execute
    return fct_src(db, uid, passwd, model, method, *args)
  File "/home/terp/OpenERP/branch/server/5.0/bin/service/web_services.py", line 577, in execute
    res = service.execute(db, uid, object, method, *args)
  File "/home/terp/OpenERP/branch/server/5.0/bin/osv/osv.py", line 58, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/home/terp/OpenERP/branch/server/5.0/bin/osv/osv.py", line 119, in execute
    res = pool.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/home/terp/OpenERP/branch/server/5.0/bin/osv/osv.py", line 111, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/home/terp/OpenERP/branch/server/5.0/bin/osv/orm.py", line 2228, in read
    result = self._read_flat(cr, user, select, fields, context, load)
  File "/home/terp/OpenERP/branch/server/5.0/bin/osv/orm.py", line 2362, in _read_flat
    res2 = self._columns[f].get(cr, self, ids, f, user, context=context, values=res)
  File "/home/terp/OpenERP/branch/server/5.0/bin/osv/fields.py", line 310, in get
    record_name = dict(obj.name_get(cr, user, [record], context))
  File "/home/terp/OpenERP/branch/server/5.0/bin/addons/product/product.py", line 609, in name_get
    result = map(_name_get, self.read(cr, user, ids, ['variants','name','default_code','price_unit_id'], context))
  File "/home/terp/OpenERP/branch/server/5.0/bin/osv/orm.py", line 2240, in read
    if type == 'many2one' and self._columns[key].__class__._type =='function' and v:
KeyError: 'price_unit_id'

Hi,

Here is the modified patch.

Thanks.

thanks - the patch works for me

Thanks for the feedback.
We are trying to improve it more.

Hello Dr Ferdinand,

   I have a better solution for this problem. I have attached it here. Would you please check it and notify us?

Thanks.

Hello

      I have created a module which can be used for testing the above issue. Would you please check it and let us notify.
    For Testing :

      1. Create a sale order which will create stock moves.
      2. Go to Stock Moves and select Any Record which is having a partner.
      3. Click on Reports and select "Print Screen". You'll get Error
      4. Apply Patch
      5. Repeat step 1 to 3. "Error Disappears".

Thanks.

As I said in https://bugs.launchpad.net/openobject-server/+bug/594504/comments/6

the last supplied patch works for me

Hello Ferdinand,

It has been fixed by revision 2095 <email address hidden>

Thanks.