流星模板助手反应性不一致

Question

我有一个模板助手，用于显示带有反应式var schoolFindQuery的学校

    Template.schoolCompareCenterList.helpers({
  schools(){
    console.log("schoolFindQuery is :" + schoolFindQuery);
      let school =  Schools.find(JSON.parse(schoolFindQuery), {limit : 20});
      console.log("school count is : " + school.count());

        return school;
}
})

并且schoolFindQuery反应变量随按钮单击而变化，随按钮单击而被更新，并且ui也相应地变化。 奇怪的是，当订阅返回数据时没有问题，但是只要订阅返回任何数据，此后辅助程序代码就不会随着订阅更改而重新运行（即使我可以看到流星玩具的订阅），并且ui不显示任何数据。 我的订阅代码如下，

this.autorun(function() {


if(subscription)
  subscription.stop()


//This reactive variables set by buttons and by the ghelp of reactivty subscription rerun
    query = "{"
    if(_sTy__.get() != 0 && _sTy__ != null)
      query += "\"schoolType.schoolT\" : \"" +  _sTy__.get()+ "\","
    if (_sTy2__.get() != 0 && _sTy2__ != null)
      query += "\"schoolType.schoolTT\" : \""+  _sTy2__.get() +"\","
    if(regexSchoolName.get() != 0 && regexSchoolName.get() != null )
      query += "\"schoolName\" : {\"$regex\": \".*" + regexSchoolName.get() + ".*\", \"$options\": \"i\"},"

    query += "\"haveSchoolDetailInfo\" : true}"

    subscription = Meteor.subscribe("schoolCompare.infinite.publish", query,  20, 0);
    schoolFindQuery = query;})

提前致谢。

Answer 1

我建议您看一下本教程，其中介绍了会话变量，反应式字典和反应式变量： https : //blog.meteor.com/the-meteor-chef-reactive-dict-reactive-vars-and-session-variables-971584515a27 ＃.undr5c1f0