[FIX] base: duplicate company => duplicate partner

The name of a company is uniq. The name of a company comes from a
partner and is required.

Thus duplicating a company didn't work.

With this change, if no partner is overriding the copy, the current
partner is duplicated and associated to the new duplicated company.

opw-746106
closes #17532

openerp/addons/base/res/res_company.py

@@ -22,7 +22,7 @@
 import os
 import re
 import openerp
-from openerp import SUPERUSER_ID, tools
+from openerp import SUPERUSER_ID, tools, api
 from openerp.osv import fields, osv
 from openerp.tools.translate import _
 from openerp.tools.safe_eval import safe_eval as eval
@@ -154,6 +154,19 @@ class res_company(osv.osv):
         ('name_uniq', 'unique (name)', 'The company name must be unique !')
     ]
 
+    @api.multi
+    def copy(self, default=None):
+        """
+        Duplicating a company without specifying a partner duplicate the partner
+        """
+        self.ensure_one()
+        default = dict(default or {})
+        if not default.get('name') and not default.get('partner_id'):
+            copy_partner = self.partner_id.copy()
+            default['partner_id'] = copy_partner.id
+            default['name'] = copy_partner.name
+        return super(res_company, self).copy(default)
+
     def onchange_footer(self, cr, uid, ids, custom_footer, phone, fax, email, website, vat, company_registry, bank_ids, context=None):
         if custom_footer:
             return {}