Hi there:
I am trying to show the date a change was made in a task. To do this, I need to inherit the template of the widget "mail_thread". That template hasn't an id in its definition. This is it:
<?xml version="1.0" encoding="UTF-8"?>
<template><!--
mail.Widget template used to namespace the css -->
<t t-name="mail.Root">
<div class="oe_mail">
</div>
</t>...
<span t-att-title="widget.date">
<t t-if="widget.timerelative" t-esc="widget.timerelative"/>
<t t-if="!widget.timerelative" t-raw="widget.display_date"/>
</span>
...
</template>
In my module, I need to replace the <span> tag in order to show the date.
So, how to inherit that template and replace the <span> tag?
I don't think you really want to change anything about the widget - that will change the way dates are displayed everywhere the widget is used. Don't you want to change one of the project.task views?