Warning: toplevel constant Configuration referenced by ActiveRecord::Base::Configuration

Rails
1

Hi,

I am facing the error msg mention in subject, and my theme doesn’t
change.

*** init.rb ********
require File.join(File.dirname(FILE), “lib”, “fedena_theme”)
FedenaPlugin.register = {
:name=>“fedena_theme”,
:description=>“Fedena Theme”
}

******* /// the line 52 in init.rb showing error /////////////****
52. current_theme =
ActiveRecord::Base::Configuration.get_config_value “Color”

*****fedena_theme.rb **********

TestPlugin

require ‘action_view/helpers/asset_tag_helper’

class FedenaTheme
COLORS = {1 => {:color => “#701288”,:accent_color =>
“#4e0d5f”,:border_color => “#8d41a0”,:sort_order => 16},
2 => {:color => “#39a6ef”,:accent_color =>
“#2874a7”,:border_color => “#61b8f2”,:sort_order => 24},
3 => {:color => “#006290”,:accent_color =>
“#004465”,:border_color => “#3381a6”,:sort_order => 26}
}
FONTS ={1 =>{:text => “Arial”, :value => “Arial”},2 =>{:text =>
“Verdana”, :value => “Verdana, Arial”},3 =>{:text => “Comic Sans MS”,
:value => “Comic Sans MS, Arial”},4 =>{:text => “Georgia”, :value =>
“Georgia, Times new Roman”},5 => {:text => “Times new Roman”, :value =>
“Times new Roman”},6 => {:text => “Trebuchet MS”, :value => “Trebuchet
MS, Arial”},7 => {:text => “Garamond”, :value => “Garamond, Times new
Roman”}}
unloadable

def self.general_settings_form
“configuration/theme_select”
end

def self.available_themes
directory = “#{Rails.public_path}/themes”
themes = Dir.entries(directory).select {|entry| File.directory?
File.join(directory,entry) and !(entry ==’.’ ||
entry == ‘…’) }
return [[‘Default’, ‘default’]]+themes.collect { |theme|
[theme.titleize, theme] }
end

def self.selected_theme
Configuration.get_config_value(“Color”)
end

def self.selected_color_value
val = selected_theme
COLORS[val.to_i][:color]
end

end

********* Errors showing
/vendor/plugins/fedena_theme/init.rb:52: warning: toplevel
constant Configuration referenced by ActiveRecord::Base::Configuration

Please help, I dont understand the error and how to resolve this. I
upgraded my App from Rails 2.3.5 to 2.3.10

2

The simplest way to trigger this warning (it’s not Rails-related BTW) is
this:

$ irb
irb(main):001:0> class Foo
irb(main):002:1> end
=> nil
irb(main):003:0> Foo::Array.new
(irb):3: warning: toplevel constant Array referenced by Foo::Array
=> []

So it seems that in addition to ActiveRecord::Base:Configuration
there’s
another class called Configuration defined at the top level.

Did you define this class? If not, does any of your dependencies define
this class?

Best regards

Greg Navis
I help small tech companies to scale Heroku-hosted Rails apps.
Free, biweekly scalability newsletter for SaaS CEOs
http://www.gregnavis.com/newsletter/

3

Greg Navis wrote in post #1183062:

The simplest way to trigger this warning (it’s not Rails-related BTW) is
this:

$ irb
irb(main):001:0> class Foo
irb(main):002:1> end
=> nil
irb(main):003:0> Foo::Array.new
(irb):3: warning: toplevel constant Array referenced by Foo::Array
=> []

So it seems that in addition to ActiveRecord::Base:Configuration
there’s
another class called Configuration defined at the top level.

Did you define this class? If not, does any of your dependencies define
this class?

As I told before in Rails 2.3.5 it was working fine, even though was
showing this warning as well but even then I could change the theme, but
in 2.3.10 its not changing the theme.

The themes plugin code is here:

4

On 25 April 2016 at 16:08, Naveed A. [email protected] wrote:

=> []
in 2.3.10 its not changing the theme.
That does not answer the question.

If you search your code for Configuration does it find anything?

Colin

5

Colin L. wrote in post #1183067:

On 25 April 2016 at 16:08, Naveed A. [email protected] wrote:

=> []
in 2.3.10 its not changing the theme.
That does not answer the question.

If you search your code for Configuration does it find anything?

Colin

Yes I have a Configuration Model/Controler below are the links to
controller, and model

6

Colin L. wrote in post #1183079:

On 26 April 2016 at 05:10, Naveed A. [email protected] wrote:

Yes I have a Configuration Model/Controler below are the links to
controller, and model

In that case your simplest solution may be to change the name of the
model.

Colin

If I change the model name, then I have to make a lot of changes in
many other Controllers and where its been called
and the migration too.
so I get a lot of error messages.

Can u get any idea from the below tree diagram that if there any change
possible can make it resolve the problem. I changed the configration
folded name in fedena_theme app views but didnt do anything

The Configration model’s file tree is
App
|-Views
|_Configuration.rb

And this plugin fedena themes files tree is

App -Vendor - Plugins- fedena_theme
:
:_ views
:_Configuration
: _theme_select.html
:_themes

7

On 26 April 2016 at 05:10, Naveed A. [email protected] wrote:

Yes I have a Configuration Model/Controler below are the links to
controller, and model

In that case your simplest solution may be to change the name of the
model.

Colin

8

On 26 April 2016 at 13:13, Naveed A. [email protected] wrote:

If I change the model name, then I have to make a lot of changes in
many other Controllers and where its been called
and the migration too.
so I get a lot of error messages.

A few global search and replace changes should do it. You don’t need
to change the controller or table name if you don’t want to. I assume
you have the source under a source control system such as git, and
that you have good automated test coverage, which will make sure you
catch everything.

Colin