code: function(user, object) {
      // XXX stringify for $oid mainly. may want to optimize for perf later
      return EJSON.stringify(object[this.ownerField]) === EJSON.stringify(user._id)
  //    return object[this.ownerField] === user._id
    }
docs: ***************************************************************************
  @method isOwner
  @description isOwner description
  @param {xxx} user -- xxx
  @param {xxx} object -- xxx
  @returns {xxx} -- xxx