[FIX] sale: product sold stat button

addons/sale/sale.py

@@ -1261,15 +1261,17 @@ class product_product(osv.Model):
     _inherit = 'product.product'
 
     def _sales_count(self, cr, uid, ids, field_name, arg, context=None):
-        SaleOrderLine = self.pool['sale.order.line']
-        return {
-            product_id: SaleOrderLine.search_count(cr,uid, [('product_id', '=', product_id)], context=context)
-            for product_id in ids
-        }
+        domain = [
+            ('state', 'in', ['waiting_date','progress','manual', 'shipping_except', 'invoice_except', 'done']),
+            ('product_id', 'in', ids),
+        ]
+        r = {}
+        for group in self.pool['sale.report'].read_group(cr, uid, domain, ['product_id','product_uom_qty'], ['product_id'], context=context):
+            r[group['product_id'][0]] = group['product_uom_qty']
+        return r
 
     _columns = {
         'sales_count': fields.function(_sales_count, string='# Sales', type='integer'),
-
     }
 
 class product_template(osv.Model):