I have created a custom report in odoo v12, and here is my report action


model="report.wizard"
string="Doc1"
report_type="qweb-pdf"
name="my_module.my_template"
file="my_module.my_template"
menu="False"
multi="False" attachment_use = "False"
paperformat="paperformat_euro_custom"
print_report_name="('Doc2-'+ object.partner_id.name +'.pdf')"/>
/>
Now when the report get printed I wanted to name a file like Doc2-partnet-name I always got the 'Doc1' name declared in the string. Is there any way to achieve this?

Thanks.