Hello everyone I need your help.

I am working on a custom module in odoo 11 I have created an email template and I want to insert the current record into the template so when a user receives an email it should contain a link. for example I want to send an email to the user to notify him that a new bill has been created and attached the link of that bill in the message. How can I do that??? 
  

I have written this code but it does not work in my model 

@api.multi
def get_full_url(self):
    self.ensure_one()
    base_url = self.env["ir.config_parameter"].get_param("web.base.url")
    url_params = {
        'id': self.id,
        'view_type': 'form',
        'model': 'account.move',
        # 'menu_id': self.env.ref('module_name.menu_record_id').id,
        'action': self.env.ref('custom_accounting.email_template_journal_invoice_create_bill').id,
    }
    params = '/web?#%s' % url_encode(url_params)
    return base_url + params