'Override this method without calling parent to redirect to rating website project page'

@api.multi
def action_view_all_rating(self):

    self.ensure_one()
    return {'type': 'ir.actions.act_url', 'name': 'Redirect    to    the    Website    Projcet    Rating    Page', 'target': 'self', 'url': ('/project/rating/%s' % (self.id,))}
