iron router syntax: onAfterAction

2
votes
Router.route('/courses/:_catalog', function () {
  var courseCatalog = this.params._catalog.toUpperCase();

  Meteor.subscribe("courseCatalog", courseCatalog);

  this.render('CourseDetail', {
    to: 'content',
    data: function () {
      return Courses.findOne({catalog: courseCatalog});
    }
  });
}, {
  onAfterAction: function() {
    if (!Meteor.isClient) {
      return;
    }
    debugger
    var course = this.data(); <======
    SEO.set({
      title: "course.catalog"
    });
  }
});

In the above code, please look at the debugger statement. I want to access the data but it seems I am doing something wrong because this.data doesn't exist. I also tried Courses.find().fetch() but I only get an empty array inside onAfterAction. What's the right syntax and what am I missing?

2
meteoriron-router

2 Answers

2
votes

It needs to be inside a this.ready() block:

  onAfterAction: function() {
    if (this.ready()) {
      var course = this.data(); 
      ...
    }
  }
0
votes

You need to subscribe to data first. Have a look at the waitOn function to do this. The server only sends the documents you subscribed to, and since you didn't subscribe, Courses.find().fetch() returns an empty array.

Also, don't put SEO stuff in onAfterAction. Put it in onRun which is guaranteed to only run once.