Name error when trying to include a file

Rails
1

So im trying to use a plugin called open flash chart lazy. Its a chart
plugin that renders charts in flash (I think). Heres my controller:

class ChartsController < ApplicationController
include OpenFlashChartLazy
layout “default”
before_filter :login_required

def index

workout_calories_array = Array.new
spinclass_calories_array = Array.new

workout_calories.each do |w|
workout_calories_array << [w.created_at.to_date,
w.calories_burned]
end
spinclass_calories.each do |sc|
spinclass_calories_array << [sc.created_at.to_date,
sc.calories_burned]
end

line_graph = OpenFlashChartLazy::Line.new(“Calories”)
workout_calories_serie =
OpenFlashChartLazy::Serie.new([workout_calories_array],{:title=>“Workouts”})
spinclass_calories_serie =
OpenFlashChartLazy::Serie.new([spinclass_calories_array],{:title=>“Spin
classes”})

Heres the error from the server:

Processing ApplicationController#index (for 127.0.0.1 at 2010-10-09
21:47:29) [GET]

NameError (uninitialized constant ChartsController::OpenFlashChartLazy):
app/controllers/charts_controller.rb:3

Rendered rescues/_trace (33.4ms)
Rendered rescues/_request_and_response (0.4ms)
Rendering rescues/layout (internal_server_error)

Thanks, jakx12.

line_graph.add_serie(workout_calories_serie)
line_graph.add_serie(spinclass_calories_serie)
line_graph.x_axis.labels.rotate=“vertical”
line_graph.bg_colour="#FFFFFF"
line_graph.x_axis.colour="#808080"
line_graph.x_axis[“grid-colour”]="#A0A0A0"
line_graph.x_axis.stroke=0.5

line_graph.y_axis.colour="#808080"
line_graph.y_axis.stroke=0.5
line_graph.y_axis[“grid-colour”]="#A0A0A0"
line_graph.to_json

render :text => line_graph.to_graph_json
end

end

2

On 9 October 2010 21:58, Zack N. [email protected] wrote:

So im trying to use a plugin called open flash chart lazy. Its a chart
plugin that renders charts in flash (I think). Heres my controller:

Not answering the question I know, but unless you are really keen on
flash you might to look at the flot javascript library which works
well for me. Google Code Archive - Long-term storage for Google Code Project Hosting.

Colin

3

Do you even know how Ruby work ?
Why do you try to include it in your controller ?

Read the documentation first:
http://github.com/peterpunk/open_flash_chart_lazy/
http://ofcl.onrails.com.ar/

This error might occur because you installed the plugin wrong, or you
might have forgotten to `require’ some files.

Robert Pankowecki

4

Thanks guys, I fixed it, it was todo with how the plugin installed.

Colin, I dont mind what plugin I use aslong as it works well. Are there
any quick guides or tutorials you could recommend on flot with rails
because I dont mind giving it a go, but I need it working relatively
fast.

Thanks.

5

On 10 October 2010 14:30, Zack N. [email protected] wrote:

Thanks guys, I fixed it, it was todo with how the plugin installed.

Colin, I dont mind what plugin I use aslong as it works well. Are there
any quick guides or tutorials you could recommend on flot with rails
because I dont mind giving it a go, but I need it working relatively
fast.

The flot website has many examples. There is a Rails plugin,
flotilla, which makes life fairly easy. I don’t know whether it is
compatible with Rails 3 if that is an issue for you.

I tried Open Flash Chart (not the lazy version, not sure of the
difference) and thought that the architecture is completely wrong. It
makes the chart in the controller whereas it should of course be in
the view. The controller should just provide the data to be charted
and the view should format it and draw it. That is how it works in
flotilla.

I found flot to be quicker drawing graphs with many points (though
that may not be true on IE as there flot has to use a canvas emulator)

Of course if you are developing a public site you have the major
decision of whether to insist the users have flash enabled or
javascript enabled.

Colin

6

Colin L. wrote:

On 10 October 2010 14:30, Zack N. [email protected] wrote:

Thanks guys, I fixed it, it was todo with how the plugin installed.

Colin, I dont mind what plugin I use aslong as it works well. Are there
any quick guides or tutorials you could recommend on flot with rails
because I dont mind giving it a go, but I need it working relatively
fast.

The flot website has many examples. There is a Rails plugin,
flotilla, which makes life fairly easy. I don’t know whether it is
compatible with Rails 3 if that is an issue for you.

I tried Open Flash Chart (not the lazy version, not sure of the
difference) and thought that the architecture is completely wrong. It
makes the chart in the controller whereas it should of course be in
the view. The controller should just provide the data to be charted
and the view should format it and draw it. That is how it works in
flotilla.

I found flot to be quicker drawing graphs with many points (though
that may not be true on IE as there flot has to use a canvas emulator)

Of course if you are developing a public site you have the major
decision of whether to insist the users have flash enabled or
javascript enabled.

Colin

Thanks for the reply. I actually reverted to open flash chart and my
other post on the rails forum is about it. I changed plugins because the
other one is a more updated version I think. Yeah, flotilla looks good,
but iv got a test bar chart working with openflashchart and am now
trying to get a line chart working so i’ll stick with that. Thanks,

Zack.