[FIX] account_invoice_change_currency: the custom_rate field has a ba…

…d position in supplier invoices. (OCA#458)

account_invoice_change_currency/views/account_invoice.xml

@@ -22,11 +22,18 @@
         <field name="model">account.invoice</field>
         <field name="inherit_id" ref="account.invoice_supplier_form"/>
         <field name="arch" type="xml">
-            <xpath expr="//form/header" position="inside">
-                - <field name="custom_rate" placeholder="Custom Rate" class="oe_inline" attrs="{'invisible': [('custom_rate', '=', 0)], 'readonly': [('state', '!=', 'draft')]}"/>
-                <button aria-label="Opened" type="object" name="action_account_change_currency" class="btn-link" states="draft" groups="account.group_account_manager">
-                    <i title="Update Currency: Will convert the amount lines to the new currency set" class="fa fa-fw fa-refresh"/>
-                </button>
+            <xpath expr="//field[@name='currency_id']" position="attributes">
+                <attribute name="invisible">1</attribute>
+            </xpath>
+            <xpath expr="//field[@name='currency_id']" position="after">
+                <label for="currency_id" groups="base.group_multi_currency"/>
+                <div groups="base.group_multi_currency">
+                    <field name="currency_id" options="{'no_create': True, 'no_open': True}" class="oe_inline"/>
+                    - <field name="custom_rate" placeholder="Custom Rate" class="oe_inline" attrs="{'invisible': [('custom_rate', '=', 0)], 'readonly': [('state', '!=', 'draft')]}"/>
+                    <button aria-label="Opened" type="object" name="action_account_change_currency" class="btn-link" states="draft" groups="account.group_account_manager">
+                        <i title="Update Currency: Will convert the amount lines to the new currency set" class="fa fa-fw fa-refresh"/>
+                    </button>
+                </div>
             </xpath>
         </field>
     </record>