Dear all,
I am using Odoo 12 and having problems on using xpath for 2 expressions.
The original code for the views I want to inherit and replace are:

1.
<t t-foreach="payments_vals" t-as="payment_vals">
<tr>
<td>
<i class="oe_form_field text-right oe_payment_label">Paid on <t t-esc="payment_vals['date']"/></i>
</td>
<td class="text-right">
<span t-esc="payment_vals['amount']" t-options='{"widget": "monetary", "display_currency": o.currency_id}'/>
</td>
</tr>
</t>

2.
<t t-if="len(payments_vals) > 0">
<tr class="border-black">
<td>
<strong>Amount Due</strong>
</td>
<td class="text-right">
<span t-field="o.residual"/>
</td>
</tr>
</t>

On the first code I want to use xpath to locate: <t t-foreach="payments_vals" t-as="payment_vals">
On the second case, I want to use xpath to locate: <t t-if="len(payments_vals) > 0">

Can anyone help me please?

Thank you all in advance

Best regards

PM