def insert_record(self, request, model, values, custom, meta=None):
    model_name = model.sudo().model
    if model_name == 'mail.mail':
        values.update({'reply_to': values.get('email_from')})
    record = request.env[model_name].with_user(SUPERUSER_ID).with_context(mail_create_nosubscribe=True).create(
        values)

    if custom or meta:
        _custom_label = "%s\n___________\n\n" % _("Other Information:")  # Title for custom fields
        if model_name == 'mail.mail':
            _custom_label = "%s\n___________\n\n" % _("This message has been posted on your website!")
        default_field = model.website_form_default_field_id
        default_field_data = values.get(default_field.name, '')
        custom_content = (default_field_data + "\n\n" if default_field_data else '') + (
            _custom_label + custom + "\n\n" if custom else '') + (self._meta_label + meta if meta else '')

        # If there is a default field configured for this model, use it.
        # If there isn't, put the custom data in a message instead
        if default_field.name:
            if default_field.ttype == 'html' or model_name == 'mail.mail':
                custom_content = nl2br(custom_content)
            record.update({default_field.name: custom_content})
        else:
            values = {
                'body': nl2br(custom_content),
                'model': model_name,
                'message_type': 'comment',
                'no_auto_thread': False,
                'res_id': record.id,
            }
            mail_id = request.env['mail.message'].with_user(SUPERUSER_ID).create(values)

    return record.id