Rails - Jun 2006 - Strange problem with Gruff not always displaying graph

Hello,

I am having a strange problem with Gruff not always displaying the graph
on the page. On some pages, the graph is displayed fine. On others,
however, I just get the number relating to the id of the requested item
- in my case, report.

Does anyone know how to solve this problem?

I have the following in my controller:


def create_graph

     g = Gruff::Line.new(290)
     g.title = "Reports"

     g.theme = {
       :colors => [''#CC0000'', ''#00CC00'',
''#cc6633'', ''#cc9966'',
''#99cc99''],
       :marker_color => ''black'',
       :background_colors => [''#FAFAFA'',
''#FAFAFA'']
     }

      report_number = []
      labels = []

     @report = User.find(session[:user]).reports.find(params[:id])
     @records = @report.report_items.find(:all, :conditions => [
"report_context = ''Required''" ] )

      for report_items in @records
        report_number << report_item.amount.to_i
    labels << report_item.date
      end

      g.data("Reports", report_number)
      g.labels = labels

      send_data(g.to_blob,
    :disposition => ''inline'',
    :type => ''image/png'',
    :filename => "report_img.png")

end


Then, in the view, I have the following:

<%= image_tag url_for(:controller => ''reports'', :action
=>
''create_graph'', :id => @report) %>

Why would the image appear for some of the report pages and not the
others?

Any help on this would be great.

Thanks

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Posted via http://www.ruby-forum.com/.

Problem sorted, thanks


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