require 'open_flash_chart'
class AuditsController < ApplicationController

  def drilldown
    @audits = Audit.find_for_drilldown(params)  # or find(:all), etc.
    #merge the drilldown_graph action and this controller with other params (such as date range)
    url = url_for(params.merge({'controller' => 'audits', 'action' => 'drilldown_graph'}))
    @graph = OpenFlashChart.swf_object(250,150,url)
  end

  def drilldown_graph
    @audits = Audit.find_for_drilldown(params)
    ofc = OpenFlashChart.new
    ofc.title("My Title", "{font-size: 16px;}")
    ofc.set_data(@audits.map{|a| a.percent.to_f})
    ofc.line_hollow(2,3,'#C06600', 'Audit Score', 12)
    ofc.set_x_labels(@audits.map{|a| a.audit_date.strftime('%m/%d')})
    ofc.set_x_label_style(9, '0x000000', 0, 3)
    ofc.x_axis_color('0x999999','0xe3e3e3')
    ofc.set_y_max(100)
    ofc.set_y_min(50)
    ofc.set_bg_color('#ffffff')
    ofc.set_y_label_steps(5)
    ofc.set_y_label_style(1, "#000000")
    ofc.y_axis_color('0x999999','0xe3e3e3')
    render :text => ofc.render
  end
end

# View (drilldown.rhtml)

<%= @graph %>