add improve_performance_on_try_assign.diff

improve_performance_on_try_assign.diff

@@ -0,0 +1,43 @@
+diff -r 3239605d105d move.py
+--- a/trytond/trytond/modules/stock/move.py	Mon May 21 20:17:34 2018 +0200
++++ b/trytond/trytond/modules/stock/move.py	Fri Jul 20 12:16:25 2018 +0200
+@@ -850,6 +850,7 @@
+                     ])
+         else:
+             locations = list(set((m.from_location for m in moves)))
++
+         location_ids = [l.id for l in locations]
+         product_ids = list(set((m.product.id for m in moves)))
+         stock_date_end = Date.today()
+@@ -1446,12 +1447,27 @@
+                 if location not in location_ids:
+                     del quantities[key]
+ 
+-        # Round quantities
+-        default_uom = dict((p.id, p.default_uom) for p in
+-            Model.browse(list(ids)))
++        Uom = Pool().get('product.uom')
++        ttemplate = Template.__table__()
++        table = Model.__table__()
++        cursor = Transaction().connection.cursor()
++
++        if Model == Template:
++            cursor.execute(*ttemplate.select(ttemplate.id, 
++                ttemplate.default_uom, 
++                where=reduce_ids(ttemplate.id, ids)))
++        else:
++            cursor.execute(*ttemplate.join(table,
++                condition=table.template == ttemplate.id).select(
++                table.id, ttemplate.default_uom,
++                where=reduce_ids(table.id, ids)))
++
++        default_uom = dict((x[0], x[1]) for x in
++             cursor.fetchall())
++
+         for key, quantity in quantities.iteritems():
+             location = key[0]
+-            uom = default_uom[id_getter(key)]
++            uom = Uom(default_uom[id_getter(key)])
+             quantities[key] = uom.round(quantity)
+ 
+         return quantities

series

@@ -18,3 +18,4 @@ stock_consignment_create_invoice_lines_on_move_done.diff # [stock_consignment] T
 issue240_631.diff # [stock_lot] stock_by_locations get all locations with that lot.
 issue10467.diff # stock_lot: add lot to grouping if lot it's required on product
 purchase_request.diff # purchase_request: as shippment_date it's not required we need to ensure operation could be done
+improve_performance_on_try_assign.diff # [stock] change browse of product to get default_uom to pysql