关系字段查询未按预期工作

Question

我有一个事件 table，它有一个名为 "attendees" 的列，它是与 _User [多对多] 的关系类型。

我尝试了以下方法，根据活动的 objectId 获取所有参加活动的 _Users 的列表。在我下面的代码中，成功和错误回调被调用 not。（SUCCESS 或 ERROR 均未打印到错误日志中。）

Parse.Cloud.define("cancelEvent", function(request, response) {
    var query = new Parse.Query("Event");
    query.get(request.params.eventId, {
        success: function(event) {
            // event.set("status", "cancelled");
            // event.save();

            // notify attendees of cancellation
            var relation = event.relation("attendees");
            var innerQuery = relation.query();
            innerQuery.find({
                success: function(attendees) {
                    console.error("SUCCESS");
                },
                error: function(error) {
                    console.error("ERROR");
                }
            });

            event.save();
            response.success();
        },
        error: function(object, error) {
            console.error("Failed to cancel event.");
            response.error(error);
        }
    });
});

Answer 1

移动event.save(); response.success(); 像这样进入成功回调

Parse.Cloud.define("cancelEvent", function(request, response) {
    var query = new Parse.Query("Event");
    query.get(request.params.eventId, {
        success: function(event) {
            // event.set("status", "cancelled");
            // event.save();

            // notify attendees of cancellation
            var relation = event.relation("attendees");
            var innerQuery = relation.query();
            innerQuery.find({
                success: function(attendees) {
                    console.error("SUCCESS");

            event.save();
            response.success();

                },
                error: function(error) {
                    console.error("ERROR");
                }
            });

        },
        error: function(object, error) {
            console.error("Failed to cancel event.");
            response.error(error);
        }
    });
});

关系字段查询未按预期工作

Relation field query not working as expected

javascript

many-to-many

parse-platform