[IMP] purchase_stock: improve usability of on-time delivery rate

Change how we show on-time delivery rate on the purchase form to
imporve usability.

Task 2265912
PR #52693

addons/purchase_stock/models/res_partner.py

@@ -33,4 +33,3 @@ class ResPartner(models.Model):
             on_time, ordered = numbers
             partner.on_time_rate = on_time / ordered * 100 if ordered else 100
         (self - seen_partner).on_time_rate = 100
-

addons/purchase_stock/views/purchase_views.xml

@@ -21,25 +21,17 @@
                     <field name="picking_ids" invisible="1"/>
                 </button>
             </xpath>
-            <xpath expr="//field[@name='partner_id']" position="replace">
-                <label for="partner_id"/>
-                <div>
-                    <field name="partner_id" widget="res_partner_many2one" context="{'res_partner_search_mode': 'supplier', 'show_vat': True}"
-                        placeholder="Name, TIN, Email, or Reference"
-                    />
-                    <div class="oe_edit_only">
-                        <button name="%(action_purchase_vendor_delay_report)d" type="action" class="oe_stat_button" context="{'search_default_partner_id': partner_id}">
-                            <field name="on_time_rate" class="text-muted" widget='percentpie'/>
-                        </button>
-                    </div>
-                </div>
-            </xpath>
             <xpath expr="//field[@name='currency_id']" position="after">
                 <field name="is_shipped" invisible="1"/>
             </xpath>
             <xpath expr="//field[@name='order_line']/tree//field[@name='date_planned']" position="after">
                 <field name="move_dest_ids" invisible="1"/>
             </xpath>
+            <xpath expr="//div[@name='date_planned_div']" position="inside">
+                <button name="%(action_purchase_vendor_delay_report)d" class="oe_link" type="action" context="{'search_default_partner_id': partner_id}" attrs="{'invisible': ['|', ('state', 'in', ['purchase', 'done']), ('partner_id', '=', False)]}">
+                    <span><field name="on_time_rate" widget="integer" class="oe_inline"/>% On-Time Delivery</span>
+                </button>
+            </xpath>
             <xpath expr="//div[@name='confirmation']" position="replace">
                 <div name="confirmation" class="oe_edit_only o_row" attrs="{'invisible': [('effective_date', '!=', False)]}" groups='purchase.group_send_reminder'>
                     <field name="receipt_reminder_email"/>