diff --git a/doc/howtos/backend.rst b/doc/howtos/backend.rst
index 0ac7ab8060d..10200f66268 100644
--- a/doc/howtos/backend.rst
+++ b/doc/howtos/backend.rst
@@ -764,6 +764,7 @@ method should simply set the value of the field to compute on every record in
name = fields.Char(compute='_compute_name')
+ @api.multi
def _compute_name(self):
for record in self:
record.name = str(random.randint(1, 1e6))
diff --git a/doc/howtos/backend/exercise-gantt b/doc/howtos/backend/exercise-gantt
index dc4033e18de..273854b197d 100644
--- a/doc/howtos/backend/exercise-gantt
+++ b/doc/howtos/backend/exercise-gantt
@@ -35,7 +35,7 @@ Index: addons/openacademy/views/openacademy.xml
===================================================================
--- addons.orig/openacademy/views/openacademy.xml 2014-08-28 14:21:46.543015785 +0200
+++ addons/openacademy/views/openacademy.xml 2014-08-28 14:21:46.539015785 +0200
-@@ -145,11 +145,24 @@
+@@ -145,11 +145,23 @@
@@ -44,10 +44,9 @@ Index: addons/openacademy/views/openacademy.xml
+ openacademy.session
+
+
-+
-+
-+
++ date_start="start_date" date_delay="hours"
++ default_group_by='instructor_id'>
++
+
+
+
diff --git a/doc/howtos/backend/exercise-state-workflow-actions b/doc/howtos/backend/exercise-state-workflow-actions
index 826ec5ce870..fe9a0c8a796 100644
--- a/doc/howtos/backend/exercise-state-workflow-actions
+++ b/doc/howtos/backend/exercise-state-workflow-actions
@@ -5,7 +5,7 @@ Index: addons/openacademy/views/session_workflow.xml
===================================================================
--- addons.orig/openacademy/views/session_workflow.xml 2014-08-26 17:26:17.339783114 +0200
+++ addons/openacademy/views/session_workflow.xml 2014-08-26 17:26:17.331783114 +0200
-@@ -6,24 +6,53 @@
+@@ -6,24 +6,50 @@
True
@@ -13,8 +13,7 @@ Index: addons/openacademy/views/session_workflow.xml
+ Set session to Draft
+
+
-+recs = self.browse(cr, uid, context['active_ids'], context=context)
-+recs.action_draft()
++model.search([('id', 'in', context['active_ids'])]).action_draft()
+
+
@@ -32,8 +31,7 @@ Index: addons/openacademy/views/session_workflow.xml
+ Set session to Confirmed
+
+
-+recs = self.browse(cr, uid, context['active_ids'], context=context)
-+recs.action_confirm()
++model.search([('id', 'in', context['active_ids'])]).action_confirm()
+
@@ -50,8 +48,7 @@ Index: addons/openacademy/views/session_workflow.xml
+ Set session to Done
+
+
-+recs = self.browse(cr, uid, context['active_ids'], context=context)
-+recs.action_done()
++model.search([('id', 'in', context['active_ids'])]).action_done()
+