diff --git a/models/operation.py b/models/operation.py
index a529288..f1b89e2 100644
--- a/models/operation.py
+++ b/models/operation.py
@@ -27,7 +27,7 @@ class opendons_operation(models.Model):
     _name = 'opendons.operation'
     _description = 'opération marketing : mailing, emailing evenements'
     _inherit = ['mail.thread']
-
+    #_order = "__last_update desc"
     #code=fields.Char(string='Code',required=True, translate=True,track_visibility='always')
     name=fields.Char(string='Name',required=True, translate=True,track_visibility='always')
     partner_count = fields.Integer(string="count",readonly=True)
@@ -91,6 +91,8 @@ class opendons_operation(models.Model):
         index=True,
         track_visibility='onchange'
     )
+    
+    
 
     
 
@@ -278,8 +280,13 @@ class opendons_segment(models.Model):
         #segment=self.env['opendons.segment'].search([('id','=',int(res.id))])
         operation=self.env['opendons.operation'].search([('id','=',int(res.operation_id))])
         #_logger.error('segment.id='+str(res.operation_id))
-
-        operation.write({'segment_count':len(operation.segment_ids)})
+        __last_update=fields.Date.context_today(self)
+        operation.write(
+            {
+                'segment_count':len(operation.segment_ids),
+                '__last_update':__last_update
+                }
+            )
         
         return res
     def write(self,vals):
@@ -297,6 +304,11 @@ class opendons_segment(models.Model):
                 
 
         res=super(opendons_segment, self).write(vals)
+
+        operation=self.env['opendons.operation'].search([('id','=',int(self.operation_id))])
+        __last_update=fields.Date.context_today(self)
+        operation.write({'__last_update':__last_update})
+
     
 
 class opendons_ensemble(models.Model):
@@ -387,7 +399,9 @@ class opendons_ensemble(models.Model):
         if len(segment.ensemble_ids)>1:
             i=1
             for ens in segment.ensemble_ids:
-                if i==1: mailing_domain=ens.mailing_domain[1:-1]
+                
+                if i==1 and ens.mailing_domain!=False: 
+                    mailing_domain=ens.mailing_domain[1:-1]
                 if i>1 :  
                     if ens.mailing_domain!=False:
                         mailing_domain=str_operator +mailing_domain+","+ens.mailing_domain[1:-1]
@@ -419,7 +433,14 @@ class opendons_ensemble(models.Model):
                 'mailing_domain':segment_domain,
             })
         
+        operation=self.env['opendons.operation'].search([('id','=',int(segment.operation_id))])
+        __last_update=fields.Date.context_today(self)
+        operation.write({'__last_update':__last_update})
+
         return res
+
+        
+
     def write(self,vals):
         
         res=super(opendons_ensemble, self).write(vals)
@@ -438,6 +459,11 @@ class opendons_ensemble(models.Model):
                 'ensemble_count':len(segment.ensemble_ids),
                 'mailing_domain':segment_domain
                 })
+        segment=self.env['opendons.segment'].search([('id','=',int(self.segment_id))])
+        operation=self.env['opendons.operation'].search([('id','=',int(segment.operation_id))])
+        __last_update=fields.Date.context_today(self)
+        operation.write({'__last_update':__last_update})
+
 
         res=super(opendons_ensemble, self).write(vals)
 
@@ -536,7 +562,7 @@ class opendons_request(models.Model):
     @api.model
     def create(self,vals):
            
-        partners=self.count_partner_request(vals)
+        #partners=self.count_partner_request(vals)
         
         if  vals['mailing_domain']=="[]" :
             vals['mailing_domain']="[[\"id\",\"!=\",False]]"
@@ -561,6 +587,10 @@ class opendons_request(models.Model):
              'mailing_domain':segment_domain
             })
         
+        operation=self.env['opendons.operation'].search([('id','=',int(segment.operation_id))])
+        __last_update=fields.Date.context_today(self)
+        operation.write({'__last_update':__last_update})
+        
        
         return res
     
@@ -579,11 +609,9 @@ class opendons_request(models.Model):
             
         
         res=super(opendons_request, self).write(vals)
-       
+        ensemble=self.env['opendons.ensemble'].search([('id','=',int(self.ensemble_id))])
+        segment=self.env['opendons.segment'].search([('id','=',int(ensemble.segment_id))])
         if mailing_domain_update==True:
-                
-        #     #mise à jour du nombre de requête pour l'ensemble lié
-             ensemble=self.env['opendons.ensemble'].search([('id','=',int(self.ensemble_id))])
 
              ensemble_domain=self.update_ensemble_domain(ensemble)
         #     partner_count=self.count_partners_ensemble(ensemble)
@@ -592,18 +620,16 @@ class opendons_request(models.Model):
             'mailing_domain':ensemble_domain
             })
 
-             segment=self.env['opendons.segment'].search([('id','=',int(ensemble.segment_id))])
+             
              segment_domain=ensemble.update_segment_domain(segment)
             
              segment.write({
                  'mailing_domain':segment_domain
                  })
             
-            # operation=self.env['opendons.operation'].search([('id','=',int(segment.operation_id))])
-            # partner_count=self.count_partners_operation(operation)
-            # operation.write({
-            #     'partner_count':partner_count
-            #     })
+        operation=self.env['opendons.operation'].search([('id','=',int(segment.operation_id))])
+        __last_update=fields.Date.context_today(self)
+        operation.write({'__last_update':__last_update})
 
 
         return res
diff --git a/views/operation.xml b/views/operation.xml
index b5c1d85..b42a97f 100644
--- a/views/operation.xml
+++ b/views/operation.xml
@@ -30,6 +30,7 @@
               <tree>
                 
                 <field name="id"/>
+                <field name="__last_update"/>
                 <field name="name"/>
                 <field name="chanel"/>
                 <field name="partner_count"/>