I had made one email template for sending mail, and initially my pdf is not store in attachment, i want to add dynamically.

Means once i click a button called send email , one function call that  internally call my email template and send msg to client, but in that mail i want to also attach my pdf which  automatically( its call generate pff method and attach in email)

Hi,

in function you call by pushing your button, when you call method send_mail of model email_template ((module email_template), add in context all informations you need to build your pdf and id of the email in a list with key 'add_pdf': [email_id, 'file_name.pdf', ....]. for function parameter 'force_send'  set value True, then the method send of mail_mail model module mail) will be called by inheriting the context.

In this function, variable attachments contains files to send with code:

# load attachment binary data with a separate read(), as prefetching all

# `datas` (binary field) could bloat the browse cache, triggerring

# soft/hard mem limits with temporary data.

attachment_ids = [a.id for a in mail.attachment_ids]

attachments = [(a['datas_fname'], base64.b64decode(a['datas']))

for a in ir_attachment.read(cr, SUPERUSER_ID, attachment_ids,

     ['datas_fname', 'datas'])]

you should override after this code in your module by overriding method send:

+ test if key 'add_pdf' is in the context

+ if yes test email_id of the key 'add_pdf' with current email_id of function send of the for loop.

+ if yes, call your function which genarates your pdf using informations you have in key 'add_pdf' and had tuple ('file_name.pdf', file) to the variable attachments list

bye

Hi,

You can refer the blog

https://www.cybrosys.com/blog/how-to-add-email-attachments-pdf-excel-in-odoo-16

This blog provides a step-by-step guide on how to add email attachments (PDF/Excel) in Odoo 16. It includes creating a new module, defining methods to generate and return the PDF report, and sending the email with the PDF report .

Regards

The answers provided here is for odoo 10 or below;

Here is a sample code done to generate Pdf and save to attachment using render_qweb_pdf for sending mail: 

@Maduka Sopulu Chris