Use untaxed amount in name_get of purchase orders

Add sum for qty in operation lines

purchase_usability/purchase.py

@@ -4,6 +4,7 @@
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
 from odoo import models, fields, api
+from odoo.tools.misc import formatLang
 
 
 class PurchaseOrder(models.Model):
@@ -54,6 +55,20 @@ class PurchaseOrder(models.Model):
             self, 'purchase.report_purchaseorder')
         return action
 
+    # Re-write native name_get() to use amount_untaxed instead of amount_total
+    @api.multi
+    @api.depends('name', 'partner_ref')
+    def name_get(self):
+        result = []
+        for po in self:
+            name = po.name
+            if po.partner_ref:
+                name += ' ('+po.partner_ref+')'
+            if po.amount_untaxed:
+                name += ': ' + formatLang(self.env, po.amount_untaxed, currency_obj=po.currency_id)
+            result.append((po.id, name))
+        return result
+
 
 class StockPicking(models.Model):
     _inherit = 'stock.picking'

stock_usability/stock_view.xml

@@ -32,6 +32,13 @@
         <button name="action_cancel" type="object" position="attributes">
             <attribute name="confirm">Are you sure you want to cancel this picking?</attribute>
         </button>
+        <!-- This sum is useful to check the 'number of items' to transfer... -->
+        <xpath expr="//field[@name='pack_operation_product_ids']/tree/field[@name='product_qty']" position="attributes">
+            <attribute name="sum">1</attribute>
+        </xpath>
+        <xpath expr="//field[@name='pack_operation_product_ids']/tree/field[@name='qty_done']" position="attributes">
+            <attribute name="sum">1</attribute>
+        </xpath>
     </field>
 </record>