Chart.js for Rails

Integrate Chart.js into Rails Asset Pipeline

Installation

Add this line to your application's Gemfile:

gem 'chart-js-rails'

And then execute:

$ bundle

Or install it yourself as:

$ gem install chart-js-rails

Add this to your application.js file:

//= require chart

Usage

Example Line Chart (coffeescript/haml):

app.js.coffee:

jQuery ->
  data = {
    labels : ["January","February","March","April","May","June","July"],
    datasets : [
      {
        fillColor : "rgba(220,220,220,0.5)",
        strokeColor : "rgba(220,220,220,1)",
        pointColor : "rgba(220,220,220,1)",
        pointStrokeColor : "#fff",
        data : [65,59,90,81,56,55,40]
      },
      {
        fillColor : "rgba(151,187,205,0.5)",
        strokeColor : "rgba(151,187,205,1)",
        pointColor : "rgba(151,187,205,1)",
        pointStrokeColor : "#fff",
        data : [28,48,40,19,96,27,100]
      }
    ]
  }

myNewChart = new Chart($("#canvas").get(0).getContext("2d")).Line(data)

index.haml.html:

%canvas#canvas{:height => "450", :width => "600"}

Visit: http://www.chartjs.org/docs/ for more Chart.js usage