Question

我有一个模板帮助器，用于显示具有反应性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;
}
})

和schoolFindQuery响应变量随按钮点击而变化，按钮点击订阅续订，ui也相应更改。奇怪的是，当订阅返回数据没有问题，但每当订阅返回任何数据，之后Helper代码将不会重新运行订阅更改（即使我可以看到与流星玩具的订阅）和ui没有显示任何数据。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

我建议你看一下本教程，它解释了会话变量，Reactive Dict和Reactive Var：https://blog.meteor.com/the-meteor-chef-reactive-dict-reactive-vars-and-session-variables-971584515a27#.undr5c1f0

流星模板助手反应性不一致

1 个答案: