CODEWITHSUNDEEP
meteorchart.js
user3639858
user3639858

Reputation: 27

How to create chart lists from a mongo collection elements in Meteor

I have a hard coded (but working) Meteor chart that includes 

labels: ["January", "February", "March", "April", "May", "June", "July"],

and

data: [random(), random(), random(), random(), random(), random(), random()]

Now, I want to generate the labels and data lists from a mongo collection.

The mongo collection looks like

meteor:PRIMARY> db.stutterRatings.find()
{ "_id" : "qokM4aGwJH9ppXDBL", "rating" : "4", "date" : ISODate("2015-09-24T10:02:50.945Z") }
{ "_id" : "nC4ut3xzmu2fHH93w", "rating" : "3", "date" : ISODate("2015-09-24T10:02:56.716Z") }
{ "_id" : "wathoLgoN5HH8K4Dx", "rating" : "9", "date" : ISODate("2015-09-24T10:10:09.768Z") }
{ "_id" : "24ndAsJQQv6Akbdr5", "rating" : "10", "date" : ISODate("2015-09-24T10:33:19.044Z") }

The date values will be used as labels and the rating values will be used as data. How do I do this?

Upvotes: 0

Views: 1549

Answers (1)

MrE
MrE

Reputation: 20788

1) fetch the data on the client: 

var dataset = Data.find({<--whatever-query-you-need-->},{fields: {labels:1, rating:1}}).fetch()

2) map the field to what you need:

var labels = dataset.map(function(d) { return d.label; }
var data = dataset.map(function(d) {return d.rating; }

if you use d3js you may be able to just pass the data to the enter function and then the mapping function to each axis.

Upvotes: 1

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