[IMP] sale: add 'confirmation_date' in reporting

What matters in sales reporting is the confirmation
date (signature, payment, etc), not the creation date.
All the sales reporting is based on order date
(= creation date). Most people need the confirmation
date (to grant commissions, etc.)

addons/sale/models/sales_team.py

@@ -69,7 +69,9 @@ class CrmTeam(models.Model):
             self.browse(datum['team_id'][0]).invoiced = datum['amount_untaxed_signed']
 
     def _graph_date_column(self):
-        if self.dashboard_graph_model in ['sales', 'invoices']:
+        if self.dashboard_graph_model == 'sales':
+            return 'confirmation_date'
+        elif self.dashboard_graph_model == 'invoices':
             return 'date'
         return super(CrmTeam, self)._graph_date_column()
 

addons/sale/report/sale_report.py

@@ -14,6 +14,7 @@ class SaleReport(models.Model):
 
     name = fields.Char('Order Reference', readonly=True)
     date = fields.Datetime('Date Order', readonly=True)
+    confirmation_date = fields.Datetime('Confirmation Date', readonly=True)
     product_id = fields.Many2one('product.product', 'Product', readonly=True)
     product_uom = fields.Many2one('product.uom', 'Unit of Measure', readonly=True)
     product_uom_qty = fields.Float('Qty Ordered', readonly=True)
@@ -58,6 +59,7 @@ class SaleReport(models.Model):
                     count(*) as nbr,
                     s.name as name,
                     s.date_order as date,
+                    s.confirmation_date as confirmation_date,
                     s.state as state,
                     s.partner_id as partner_id,
                     s.user_id as user_id,
@@ -100,6 +102,7 @@ class SaleReport(models.Model):
                     t.categ_id,
                     s.name,
                     s.date_order,
+                    s.confirmation_date,
                     s.partner_id,
                     s.user_id,
                     s.state,