use Mongo.Collection.get if it exists to retrieve the fs collection, otherwise fallback to the former method

Author: jankapunkt

lib/client/fileUpload.js

@@ -11,8 +11,10 @@ Template.afFileUpload.onCreated(function () {
       atts: {}
     };
   }
-
-  this.collection      = Mongo.Collection.get(his.data.atts.collection); //Meteor.connection._mongo_livedata_collections[this.data.atts.collection];
+  console.log(this.data);
+  this.collection      = Mongo.Collection.get
+    ? Mongo.Collection.get(this.data.atts.collection)
+    : Meteor.connection._mongo_livedata_collections[this.data.atts.collection];
   this.uploadTemplate  = this.data.atts.uploadTemplate || null;
   this.previewTemplate = this.data.atts.previewTemplate || null;
 
@@ -45,7 +47,11 @@ Template.afFileUpload.helpers({
     return Template.instance().fileId.get() || this.value;
   },
   uploadedFile() {
-    return global[Template.instance().collectionName()].findOne({
+    var collectionName = Template.instance().collectionName();
+    var collection = Mongo.Collection.get
+      ? Mongo.Collection.get(collectionName)
+      : global[collectionName];
+    return collection.findOne({
       _id: Template.instance().fileId.get() || this.value
     });
   }
@@ -69,7 +75,11 @@ Template.afFileUpload.events({
   },
   'change [data-files-collection-upload]'(e, template) {
     if (e.currentTarget.files && e.currentTarget.files[0]) {
-      var upload = global[template.collectionName()].insert({
+      var collectionName = template.collectionName();
+      var collection = Mongo.Collection.get
+        ? Mongo.Collection.get(collectionName)
+        : global[template.collectionName()];
+      var upload = collection.insert({
         file: e.currentTarget.files[0],
         streams: 'dynamic',
         chunkSize: 'dynamic'