如何从流星的mongodb集合中获得特定结果

Question

I want to get some results that a certain field has the same value as a selectedItem value in my html. I'm using Meteor :

Template.Bd.helpers({
  'd': function () {
    return List.find({ 
      region: event.target.RegionValue.options[RegionValue.selectedIndex].text.value
    }).fetch();
  }        
});

Answer 1

I think I just have to put the function in the template events not in the helpers

'change Region': function(event) { 
        return List.find({r:event.target.Region.options[Region.selectedIndex].text.value}).fetch();
      console.log("changed");
    }

I avoided the bug but the code is still not working.