Lazy High Charts: change colors of a pie chart [rails 3] - ruby-on-rails-3

Question

I'm working in a rails 3 project, I want to change the pie chart colors that I generate with the LazyHighChart gem and I don;t know how to do that
This is my method controller
def set_pie_chart(data)
fixed_data = []
data.each_pair do |key, value|
fixed_data << [key.name, value]
end
#color = data.keys.map {|e| "#" + e.colour } # e.colour is like '333333'
#chart = LazyHighCharts::HighChart.new('pie') do |c|
c.chart({:defaultSeriesType=>"pie" , :margin=> [0, 0, 0, 0]})
series = {
type: 'pie',
name: 'total expenses',
data: fixed_data,
colors: ['green','red'] # intent
}
c.series(series)
c.colors = ['red','blue','black'] # intent
c.options[:colors] = ['green','blue','yellow'] # intent
c.options['colors'] = ['red','blue','yellow'] # intent
c.options[:title][:text] = nil
c.plot_options(:pie=>{
cursor: "pointer",
center: ['50%','37%'],
color: 'red', #intent
dataLabels: { enabled: false }
})
end
end
this method doesn't leave any error, what is the correct way or its not possible with this gem?
or what other good alternative gems could I use for my project?

Answer 1

I had the same problem and I solved it by putting the color options in my view. This is what I did:
#my_view_helper.rb
def chart_colors
html =
"[{linearGradient: [0, 0, 0, 200], stops: [[0, '#e28b02'],[1, '#f1bc70']]},
{linearGradient: [0, 0, 0, 200], stops: [[0, '#a5ba57'],[1, '#a8bb51']]},
{linearGradient: [0, 0, 0, 200], stops: [[0, '#1e93d6'],[1, '#35aff6']]},
{linearGradient: [0, 0, 0, 200], stops: [[0, '#c8cf99'],[1, '#cdcfa9']]},
{linearGradient: [0, 0, 0, 200], stops: [[0, '#709ab1'],[1, '#a7c5d0']]},
{linearGradient: [0, 0, 0, 200], stops: [[0, '#c76f4e'],[1, '#fba98e']]},
{linearGradient: [0, 0, 0, 200], stops: [[0, '#95d6e3'],[1, '#bbe8ed']]}]"
html
end
#my_view.html.haml
#chart
= high_chart("pie_1", #chart) do |c|
= "options.colors = #{chart_colors}".html_safe

Answer 2

#chart = LazyHighCharts::HighChart.new('pie') do |c|
c.colors(["red","green","blue"]);
end