diff --git a/addons/base_calendar/crm_meeting.py b/addons/base_calendar/crm_meeting.py
index 9c15de00006..ec71b350bd0 100644
--- a/addons/base_calendar/crm_meeting.py
+++ b/addons/base_calendar/crm_meeting.py
@@ -19,6 +19,8 @@
 #
 ##############################################################################
 
+import time
+
 from openerp.osv import fields, osv
 from openerp.tools.translate import _
 
@@ -110,12 +112,11 @@ class crm_meeting(base_state, osv.Model):
     # ----------------------------------------
 
     # shows events of the day for this user
-    def needaction_domain_get(self, cr, uid, domain=[], context={}):
-        return [('date','<=',time.strftime('%Y-%M-%D 23:59:59')), ('date_deadline','>=', time.strftime('%Y-%M-%D 00:00:00')), ('user_id','=',uid)]
+    def _needaction_domain_get(self, cr, uid, domain=[], context={}):
+        return [('date', '<=', time.strftime('%Y-%M-%D 23:59:59')), ('date_deadline', '>=', time.strftime('%Y-%M-%D 00:00:00')), ('user_id', '=', uid)]
 
     def message_post(self, cr, uid, thread_id, body='', subject=None, type='notification',
                         subtype=None, parent_id=False, attachments=None, context=None, **kwargs):
-        cal_event_pool = self.pool.get('calendar.event')
         if isinstance(thread_id, str):
             thread_id = get_real_ids(thread_id)
         return super(crm_meeting, self).message_post(cr, uid, thread_id, body=body, subject=subject, type=type, subtype=subtype, parent_id=parent_id, attachments=attachments, context=context, **kwargs)
diff --git a/addons/event/event.py b/addons/event/event.py
index 918b7d03925..2eadd7a7d34 100644
--- a/addons/event/event.py
+++ b/addons/event/event.py
@@ -48,7 +48,7 @@ class event_event(osv.osv):
     _name = 'event.event'
     _description = __doc__
     _order = 'date_begin'
-    _inherit = ['mail.thread','ir.needaction_mixin']
+    _inherit = ['mail.thread', 'ir.needaction_mixin']
 
     def name_get(self, cr, uid, ids, context=None):
         if not ids:
@@ -289,7 +289,7 @@ class event_registration(osv.osv):
     """Event Registration"""
     _name= 'event.registration'
     _description = __doc__
-    _inherit = ['ir.needaction_mixin','mail.thread']
+    _inherit = ['mail.thread', 'ir.needaction_mixin']
     _columns = {
         'id': fields.integer('ID'),
         'origin': fields.char('Source Document', size=124,readonly=True,help="Name of the sale order which create the registration"),
diff --git a/addons/hr_holidays/hr_holidays.py b/addons/hr_holidays/hr_holidays.py
index 63df9829aed..cca63e0712e 100644
--- a/addons/hr_holidays/hr_holidays.py
+++ b/addons/hr_holidays/hr_holidays.py
@@ -418,7 +418,7 @@ class hr_holidays(osv.osv):
     # OpenChatter and notifications
     # -----------------------------
 
-    def needaction_domain_get(self, cr, uid, ids, context=None):
+    def _needaction_domain_get(self, cr, uid, ids, context=None):
         emp_obj = self.pool.get('hr.employee')
         empids = emp_obj.search(cr, uid, [('parent_id.user_id', '=', uid)], context=context)
         dom = ['&', ('state', '=', 'confirm'), ('employee_id', 'in', empids)]
diff --git a/addons/hr_timesheet_sheet/hr_timesheet_sheet.py b/addons/hr_timesheet_sheet/hr_timesheet_sheet.py
index c30ea10c603..7299460554b 100644
--- a/addons/hr_timesheet_sheet/hr_timesheet_sheet.py
+++ b/addons/hr_timesheet_sheet/hr_timesheet_sheet.py
@@ -226,13 +226,15 @@ class hr_timesheet_sheet(osv.osv):
     # ------------------------------------------------
     # OpenChatter methods and notifications
     # ------------------------------------------------
-    
+
     def _needaction_domain_get(self, cr, uid, ids, context=None):
         emp_obj = self.pool.get('hr.employee')
         empids = emp_obj.search(cr, uid, [('parent_id.user_id', '=', uid)], context=context)
+        if not empids:
+            return False
         dom = ['&', ('state', '=', 'confirm'), ('employee_id', 'in', empids)]
         return dom
-hr_timesheet_sheet()
+
 
 class account_analytic_line(osv.osv):
     _inherit = "account.analytic.line"
diff --git a/addons/purchase/purchase.py b/addons/purchase/purchase.py
index 9a01910cd64..15596566ad2 100644
--- a/addons/purchase/purchase.py
+++ b/addons/purchase/purchase.py
@@ -805,13 +805,6 @@ class purchase_order(osv.osv):
                 wf_service.trg_validate(uid, 'purchase.order', old_id, 'purchase_cancel', cr)
         return orders_info
 
-    # --------------------------------------
-    # OpenChatter methods and notifications
-    # --------------------------------------
-
-    def needaction_domain_get(self, cr, uid, ids, context=None):
-        return [('state', '=', 'draft')]
-
 
 class purchase_order_line(osv.osv):
     def _amount_line(self, cr, uid, ids, prop, arg, context=None):
diff --git a/addons/sale/sale.py b/addons/sale/sale.py
index 616e1642bf0..314b1b31cb8 100644
--- a/addons/sale/sale.py
+++ b/addons/sale/sale.py
@@ -635,12 +635,6 @@ class sale_order(osv.osv):
     def action_done(self, cr, uid, ids, context=None):
         return self.write(cr, uid, ids, {'state': 'done'}, context=context)
 
-    # ------------------------------------------------
-    # OpenChatter methods and notifications
-    # ------------------------------------------------
-
-    def needaction_domain_get(self, cr, uid, ids, context=None):
-        return [('state', '=', 'draft'), ('user_id', '=', uid)]
 
 
 # TODO add a field price_unit_uos