Meteor Webix Datatable Reactive

post_item.html

<!-- format for datatable id, title and url 
-->

<template name="postItem">
  <li data-id="{{_id}}"
      data-title="{{title}}"
      data-url='<a href="{{url}}" target="_blank">{{url}}</a>'
      >
  </li>
</template>

post_list.html

<template name="postslist">
  <div id="_postslist">
    <div data-id="postslist"
         data-view="datatable"
         data-type="line"
         data-autoheight=1>
      <config name="onClick" fa-comment-o="{{onClick}}"></config>

      <div data-view="column"
           data-hidden=1
           data-id="id"></div>

      <div data-view="column"
           data-fillspace=1
           data-id="title">
        <strong>{{t9n 'postslist.datatable.column.title'}}</strong>
      </div>

      <div data-view="column"
           data-fillspace=1
           data-id="url">
        <strong>{{t9n 'postslist.datatable.column.url'}}</strong>
      </div>
      

      <div data-view="column"
           data-template="<span style='cursor:pointer; text-align:center' class='webix_icon fa-comment-o'></span>"
           data-id="discuss">
        <strong>{{t9n 'postslist.datatable.column.discuss'}}</strong>
      </div>

      <ul data-view="data">
        {{#each posts}}
        {{> postItem}}
        {{/each}}
      </ul>
      
    </div>
  </div>
</template>

post_list.js

'use strict';

Template.postslist.onCreated(function() {
  this._component = undefined;
  Session.set('postsCount',0);
})
Template.postslist.onRendered(function() {
  var component =  webix.markup.init($('#_postslist')[0]);
  this._component = component;
  webix.event(window, 'resize', function(){
    if (component) component.resize();
  });
  /**
  * This is a Reactive function, it will fire whenever
  * the "postsCount" object changes
  * This reloads the data into the _component (datatable)
  * but the formatting described by "post_list.html" has vanished
  */
  this.autorun(function() {
    var postsCount = Posts.find({}, {sort: {submitted: -1}}).count();//reactive
    if (postsCount !== Session.get('postsCount')) {
      if (Template.instance()._component) {
        debugger;
        var data =  Posts.find({}, {sort: {submitted: -1}}).fetch();
        Template.instance()._component.clearAll();
        Template.instance()._component.define('data',data);
        Template.instance()._component.refresh();
      }
      Session.set('postsCount',postsCount);
    }
  });
});

Template.postslist.onDestroyed(function() {
  if (webix.ui.views['postslist']) {
    webix.ui.views['postslist'].destructor();
  }
});


Template.postslist.helpers({
  posts: function() {
    return Posts.find({}, {sort: {submitted: -1}});
  },
  onClick: function() {
    return "Helpers.postslist_onClickDiscuss";
  }
})