diff --git a/addons/crm/crm_lead.py b/addons/crm/crm_lead.py
index c9064fadfb3..1f9197969c5 100644
--- a/addons/crm/crm_lead.py
+++ b/addons/crm/crm_lead.py
@@ -101,7 +101,7 @@ class crm_lead(FormatAddress, osv.osv):
 
     def fields_view_get(self, cr, user, view_id=None, view_type='form', context=None, toolbar=False, submenu=False):
         if context and context.get('opportunity_id'):
-            action = self.get_formview_action(cr, user, context['opportunity_id'], context=context)
+            action = self.get_formview_action(cr, user, [context['opportunity_id']], context=context)
             if action.get('views') and any(view_id for view_id in action['views'] if view_id[1] == view_type):
                 view_id = next(view_id[0] for view_id in action['views'] if view_id[1] == view_type)
         res = super(crm_lead, self).fields_view_get(cr, user, view_id=view_id, view_type=view_type, context=context, toolbar=toolbar, submenu=submenu)
@@ -927,12 +927,12 @@ Update your business card, phone book, social media,... Send an email right now
         aliases = self.pool['crm.team'].message_get_reply_to(cr, uid, list(team_ids), default=default, context=context)
         return dict((lead.id, aliases.get(lead.team_id and lead.team_id.id or 0, False)) for lead in leads)
 
-    def get_formview_id(self, cr, uid, id, context=None):
-        obj = self.browse(cr, uid, id, context=context)
+    def get_formview_id(self, cr, uid, ids, context=None):
+        obj = self.browse(cr, uid, ids[0], context=context)
         if obj.type == 'opportunity':
             model, view_id = self.pool.get('ir.model.data').get_object_reference(cr, uid, 'crm', 'crm_case_form_view_oppor')
         else:
-            view_id = super(crm_lead, self).get_formview_id(cr, uid, id, context=context)
+            view_id = super(crm_lead, self).get_formview_id(cr, uid, ids, context=context)
         return view_id
 
     def message_get_suggested_recipients(self, cr, uid, ids, context=None):
diff --git a/addons/mail/static/src/js/chat_manager.js b/addons/mail/static/src/js/chat_manager.js
index 40a7388cde7..e3a11b19197 100644
--- a/addons/mail/static/src/js/chat_manager.js
+++ b/addons/mail/static/src/js/chat_manager.js
@@ -924,7 +924,7 @@ var chat_manager = {
                 }
             });
         } else {
-            new Model(res_model).call('get_formview_id', [res_id, session.context]).then(function (view_id) {
+            new Model(res_model).call('get_formview_id', [[res_id], session.context]).then(function (view_id) {
                 redirect_to_document(res_model, res_id, view_id);
             });
         }
diff --git a/addons/web/static/src/js/views/form_relational_widgets.js b/addons/web/static/src/js/views/form_relational_widgets.js
index 6274f0bc087..6e565a07a2d 100644
--- a/addons/web/static/src/js/views/form_relational_widgets.js
+++ b/addons/web/static/src/js/views/form_relational_widgets.js
@@ -142,7 +142,7 @@ var FieldMany2One = common.AbstractField.extend(common.CompletionFieldMixin, com
             }
             var context = self.build_context().eval();
             var model_obj = new Model(self.field.relation);
-            model_obj.call('get_formview_id', [self.get("value"), context]).then(function(view_id){
+            model_obj.call('get_formview_id', [[self.get("value")], context]).then(function(view_id){
                 var pop = new common.FormViewDialog(self, {
                     res_model: self.field.relation,
                     res_id: self.get("value"),
@@ -362,7 +362,7 @@ var FieldMany2One = common.AbstractField.extend(common.CompletionFieldMixin, com
     execute_formview_action: function() {
         var self = this;
         var context = self.build_context().eval();
-        (new Model(self.field.relation)).call('get_formview_action', [self.get("value"), context]).then(function(action) {
+        (new Model(self.field.relation)).call('get_formview_action', [[self.get("value")], context]).then(function(action) {
             self.do_action(action);
         });
     },
diff --git a/openerp/models.py b/openerp/models.py
index c92066fd867..76abf29da4a 100644
--- a/openerp/models.py
+++ b/openerp/models.py
@@ -1696,21 +1696,27 @@ class BaseModel(object):
             }
         return result
 
-    def get_formview_id(self, cr, uid, id, context=None):
+    def get_formview_id(self, cr, uid, ids, context=None):
         """ Return an view id to open the document with. This method is meant to be
             overridden in addons that want to give specific view ids for example.
 
             :param int id: id of the document to open
         """
+        # TDE CLEANME: temporary workaround for saas-11, to remove in saas-12
+        if isinstance(ids, (int, long)):
+            ids = [ids]
         return False
 
-    def get_formview_action(self, cr, uid, id, context=None):
+    def get_formview_action(self, cr, uid, ids, context=None):
         """ Return an action to open the document. This method is meant to be
             overridden in addons that want to give specific view ids for example.
 
             :param int id: id of the document to open
         """
-        view_id = self.get_formview_id(cr, uid, id, context=context)
+        # TDE CLEANME: temporary workaround for saas-11, to remove in saas-12
+        if isinstance(ids, (int, long)):
+            ids = [ids]
+        view_id = self.get_formview_id(cr, uid, ids, context=context)
         return {
             'type': 'ir.actions.act_window',
             'res_model': self._name,
@@ -1718,7 +1724,7 @@ class BaseModel(object):
             'view_mode': 'form',
             'views': [(view_id, 'form')],
             'target': 'current',
-            'res_id': id,
+            'res_id': ids[0],
             'context': context,
         }