meteor sort find() how? - meteor

Question

I would like to make a ToDo list webapp in meteor, where users could define their own goals and sort them, so the higher a goal is, the bigger it's priority becomes.
I have two Collections:
meteor:PRIMARY> db.goals.find()
{ "_id" : "ZDCwfD4pWfD7sZ9DB", "gtext" : "Money", "createdAt" : ISODate("2015-12-26T13:15:59.563Z"), "owner" : "qDqGDaXjaHXNhX95u", "username" : "prsz", "order" : 0 }
{ "_id" : "B9oKRGssNWhjz57dP", "gtext" : "Procrastination", "createdAt" : ISODate("2015-12-26T13:16:06.272Z"), "owner" : "qDqGDaXjaHXNhX95u", "username" : "prsz", "order" : 3 }
{ "_id" : "famqG5vby9wBo37Ns", "gtext" : "Housework", "createdAt" : ISODate("2016-01-01T15:01:02.256Z"), "owner" : "qDqGDaXjaHXNhX95u", "username" : "prsz", "order" : 2 }
{ "_id" : "QKWJjTEwZQs5ErrPR", "gtext" : "Getting fit", "createdAt" : ISODate("2016-01-01T16:10:38.302Z"), "owner" : "qDqGDaXjaHXNhX95u", "username" : "prsz", "order" : 1 }
{ "_id" : "ByNyg9uRBH35XXgdi", "gtext" : "test1", "createdAt" : ISODate("2016-01-06T13:40:15.224Z"), "owner" : "JWdrC3bFgmHXHeDFf", "order" : 0 }
meteor:PRIMARY> db.tasks.find()
{ "_id" : "gNuyxHdyA6HN8JFsd", "text" : "clean up", "createdAt" : ISODate("2015-12-27T11:12:46.186Z"), "owner" : "qDqGDaXjaHXNhX95u", "username" : "prsz", "notes" : "", "priority" : "famqG5vby9wBo37Ns", "postponedate" : "", "checked" : false, "relatedgoal": { "order": 2, "_id": "famqG5vby9wBo37Ns" }}
{ "_id" : "6dEkaETWAkhsELP8r", "text" : "Sell something", "createdAt" : ISODate("2015-12-27T11:12:48.669Z"), "owner" : "qDqGDaXjaHXNhX95u", "username" : "prsz", "notes" : "", "priority" : "ZDCwfD4pWfD7sZ9DB", "postponedate" : "", "relatedgoal": { "order": 0, "_id": "ZDCwfD4pWfD7sZ9DB"} }
{ "_id" : "nCKz9oCkiExz4ekfK", "text" : "Win the lottery", "createdAt" : ISODate("2015-12-27T11:12:51.294Z"), "owner" : "qDqGDaXjaHXNhX95u", "username" : "prsz", "notes" : "", "priority" : "ZDCwfD4pWfD7sZ9DB", "postponedate" : "", "relatedgoal": { "order": 0, "_id": "ZDCwfD4pWfD7sZ9DB" } }
{ "_id" : "YvWxaxWM9qvGzkpEK", "text" : "read a magazine", "createdAt" : ISODate("2015-12-27T11:12:41.526Z"), "owner" : "qDqGDaXjaHXNhX95u", "username" : "prsz", "notes" : "", "priority" : "B9oKRGssNWhjz57dP", "postponedate" : "" "relatedgoal": { "order": 3, "_id": "B9oKRGssNWhjz57dP" }}
{ "_id" : "s53vn9tf8C5tyy27q", "text" : "task1", "createdAt" : ISODate("2016-01-06T13:39:36.673Z"), "owner" : "JWdrC3bFgmHXHeDFf", "notes" : "", "priority" : "ByNyg9uRBH35XXgdi", "postponedate" : "" }
{ "_id" : "bEWosRJK4ekAvSuJ6", "text" : "do some situps", "createdAt" : ISODate("2016-01-08T15:47:41.047Z"), "owner" : "qDqGDaXjaHXNhX95u", "username" : "prsz", "notes" : "", "priority" : "QKWJjTEwZQs5ErrPR", "relatedgoal": { "order": 1, "_id": "QKWJjTEwZQs5ErrPR" }}
My ultimate goal is to be able to sort the tasks by the order field of the related goal.
I'm using perak/meteor-joins to join the tasks collection with the related goal's oder field.
Now my problem is that I cannot get my find() to sort the goals by the oder field.
client.js:
Meteor.subscribe('Tasks');
Meteor.subscribe('Goals');
Template.body.helpers({
priorityTasks: function() {
return Tasks.find(
{postponedate: {$exists: false }},
{sort: {'relatedgoal.order': -1}}
)
}
});
I even tried, this but did not help either:
priorityTasks: function() {
return Tasks.find(
{postponedate: {$exists: false }},
{sort: {relatedgoal.order: 1}}
)
}),
Is there a way to sort the tasks by their order field?
I was thinking about a transform in the find method, but that's not reactive. I need a reactive solution.
Server.js:
Tasks = new Mongo.Collection("tasks");
Goals = new Mongo.Collection("goals");
Tasks.join(Goals, "priority", "relatedgoal", ["order"]);
Meteor.publish('Tasks',function() {
return Tasks.find({ owner: this.userId});
});
Meteor.publish('Goals',function() {
return Goals.find({ owner: this.userId});
});
Sortable.collections = ['goals'];
todo.html
<div class="container-fluid col-md-6">
<ul>
{{#each priorityTasks}}
{{> task}}
{{/each}}
</ul>
</div>
<template name="task">
<li>
<span class="text">
<a href="#modal-5" data-toggle="modal">
<strong>{{text}} - {{relatedgoal.order}}</strong>
</a>
<br>
{{postponedate}}
</span>
</li>
</template>

Answer 1

priorityTasks: function() {
return Tasks.find(
{
postponedate: {$exists: false }
}, {
sort: {'relatedgoal.order': 1}})
},
should work