JBuilder JSON Array

Question

I'm using Ruby on Rails and Jbuilder gem.

I'm trying to get an attribute of a point like this:

{
"point":[33,11]
}

My model are like this

class Point < ActiveRecord::Base
attr_accessible :x, :y
end

I'm trying with this, but was not successfully, it returns the point as a string and I need it as integer.

json.point "[#{point.x},#{point.y}]"

Thanks!!!!

yes, but still not ok, it returns: "[33,11]" and I need [33,11] — Edu Lomeli
– Edu Lomeli, Commented Nov 17, 2012 at 1:38
I see , you can try a method , that accepts point.x and point.y and returns an array [point.x,point.y] (as you know , [] represents array in Ruby). — R Milushev
– R Milushev, Commented Nov 17, 2012 at 1:41

Jacob Brown · Accepted Answer · 2012-11-17 01:50:41Z

3

Building on Qumara's comment, you should call point.x.to_i and point.y.to_i.

You should also remove the quotes around your array parameter.

The line in question inside your JBuilder block should look like

json.point [point.x.to_i,point.y.to_i]

answered Nov 17, 2012 at 1:50

Jacob Brown

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1 Comment

It works! I have added a new method in the Point model to returns an array of the points, that is the same to your answer. Thanks!!