Generate html and render in qweb - odoo

Question

Is it possible generate html in .py file and render in qweb?
<openerp>
<data>
<record id="paperformat_time" model="report.paperformat">
<field name="name">Time</field>
<field name="font_size">10</field>
</record>
<report id="time_qweb" model="hr_timesheet_sheet.sheet" string="Time"
report_type="qweb-pdf" name="time.report_time" file="time.report_time" />
<record id="time_qweb" model="ir.actions.report.xml">
<field name="paperformat_id" ref="time.paperformat_time" />
</record>
</data>
</openerp>
qweb
<template id="report_time">
<t t-call="report.html_container">
<t t-foreach="docs" t-as="t">
<span t-esc="t.__compute_html()" />
<div class="page">
<span t-field="t.html_text " />
</div>
</t>
</t>
</template>
.py file
class Time(models.Model):
_inherit = 'hr_timesheet_sheet.sheet'
html_text = fields.Html(string = 'Html')
#api.one
def _compute_html(self):
html_value = "<h1>TEST</h1>"
html_value += "<h1>TEST 2</h1>"
self.html_text = html_value
eg.
html_value = "<h1> + employee_id.name + "</h1>"
html_value += "<h1> + employee_id.phone + "</h1>"
now I need html_value render in qweb in put in <div class="page"> put here html_value </div>
Now I save text in database, any better solution?................................

Answer 1

Yes you can if you have a variable that have html code if you use t-esc or t-field odoo will print it as text.
If you want to render it use. t-raw
<div t-raw="doc.some_attribute" > </div>
Or
<t t-raw="doc.some_attribute" > </t>

Answer 2

You can try this
<span t-raw="my_html_field"/>
Here my_html_field is your html formated data

Answer 3

Since Odoo version 15, t-raw is deprecated. You need to render the HTML in a safe way using Python, then parse that into XML. Reference
import markupsafe
...
class YourController(http.Controller):
...
#http.route(...)
def your_rendering_method(self):
...
return request.render("YOUR_TEMPLATE", {"YOUR_FIELD": markupsafe.Markup("<a href='https://www.stackoverflow.com'>Stack Overflow</a>")})
<t t-esc="YOUR_FIELD" />