FIX no warning messages when an attribute definition is not set

users_ldap_mail/users_ldap_model.py

@@ -28,9 +28,10 @@ class CompanyLDAP(orm.Model):
     _inherit = 'res.company.ldap'
     _columns = {
         'name_attribute': fields.char('Name Attribute', size=64,
-            help="Default in 'cn'. For an AD you could use 'displayName' instead."),
+            help="By default 'cn' is used. "
+                 "For ActiveDirectory you might use 'displayName' instead."),
         'mail_attribute': fields.char('E-mail attribute', size=64,
-            help="Active Directory uses the 'mail' attribute."),
+            help="LDAP attribute to use to retrieve em-mail address."),
         }
     _defaults = {
         'mail_attribute': 'mail',
@@ -63,6 +64,7 @@ class CompanyLDAP(orm.Model):
             ]
         for value_key, conf_name in mapping:
             try:
+                if conf[conf_name]:
                     values[value_key] = ldap_entry[1][conf[conf_name]][0]
             except KeyError:
                 _log.warning('No LDAP attribute "%s" found for login  "%s"' % (