[FIX] cannot create user due to required name.

partner_firstname/partner.py

@@ -115,15 +115,12 @@ class ResPartner(orm.Model):
         even if we use fnct_inv: otherwise we can't create entry because
         lastname is mandatory and module will not install if there is demo data
         """
-        to_use = vals
-        if 'name' in vals:
         corr_vals = vals.copy()
-            if vals.get('name'):
+        if corr_vals.get('name'):
             corr_vals['lastname'] = corr_vals['name']
             del(corr_vals['name'])
-            to_use = corr_vals
         return super(ResPartner, self).create(
-            cursor, uid, to_use, context=context)
+            cursor, uid, corr_vals, context=context)
 
     _columns = {'name': fields.function(_compute_name_custom, string="Name",
                                         type="char", store=True,

partner_firstname/res_user.py

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+"""Extend res.users to be compatible with split name in res.partner."""
 ##############################################################################
 #
 #    Author: Nicolas Bessi. Copyright Camptocamp SA
@@ -17,14 +18,19 @@
 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 ##############################################################################
-from openerp.osv import orm
+from openerp import api, models
 from openerp.tools.translate import _
 
 
-class ResUsers(orm.Model):
-
+class ResUsers(models.Model):
+    """Extend res.users to be compatible with split name in res.partner."""
     _inherit = 'res.users'
 
+    @api.onchange('firstname', 'lastname')
+    def change_name(self):
+        names = [name for name in [self.firstname, self.lastname] if name]
+        self.name = ' '.join(names)
+
     def copy_data(self, cr, uid, _id, default=None, context=None):
         """
         Avoid to replicate the firstname into the name when duplicating a user