whole_func_string: function(searchName, field, value, w, req) {
        return w[field.target.field] = req.params[field.param];
      }
func_code_string: function(searchName, field, value, w, req) {
        return w[field.target.field] = req.params[field.param];
      }
func_documentation_string: if user from :userId is