Hi,

You can create an email template, with the help of this blog.

Creating Email Templates in Odoo 12

Hello,

You have to use create method of email.template object.

For e.g. if you want to create a template for sale order and want to send mail using that template than you have to write particular code inside your method

template_obj = self.pool.get('email.template')
group_model_id = self.pool.get('ir.model').search(cr, uid, [('model', '=', 'sale.order')])[0]
body_html = '''Message whatever you want to send'''
template_data = {
    'model_id': group_model_id,
    'name': 'Template Name',
    'subject' : 'Subject for your email',
    'body_html': body_html,
    'email_from' : '${object.user_id.email}',
    'email_to' : '${object.partner_id.email}',
}

template_id = template_obj.create(cr, uid, template_data, context=context)
template_obj.send_mail(cr, uid, template_id, ids[0], force_send=True, context=context)

It will send a mail with given values in dictionary.

Thanks.

HI,

For creating new template and sending the email using the same template from the python code, see this Videos

1. How To Create Email Template in Odoo

2. Send Email From Code Using Email Template in Odoo

Thanks

As far as I understood that question, you want to create a new mail, which will take some values from the current model and use that in HTML mail sent to the partner. You can easily do that, just go to the module base_calendar and look for example for _links_get function and its usage through the code.