From: steffen_kory@...
Date: 2007-11-16T23:53:55+09:00
Subject: Re: railroad problem

It looks like it is looking for a class called Pd and not PD.

Try "class Pd < ActiveRecord::Base".


On Fri, 16 Nov 2007 23:36:00 +0900, srinivasan.anand wrote
> Hi all,
> 
>             Got struck up with this. Please help.
> 
> The actual requirement is that I am trying to generate a model 
> diagram thru the railroad which I have installed in my machine. I 
> use both oracle and postgre db's in the db connection (database.yml 
> file).
> 
> "puredisk_development:
> 
>   adapter: postgresql
> 
>   database: ca
> 
>   port: 10085
> 
>   username: ***
> 
>   password: ***
> 
> reporting_development:
> 
>   adapter: oracle
> 
>   username: ***
> 
>   password: ***
> 
>   database: ***
> 
> "
> 
> The error which I am getting when I am running the command "railroad 
> -M -v -o models" is
> 
> /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support
> /dependencies.rb:249:in `load_missing_constant': Expected
> config/../app/models/pd.rb to define Pd (LoadError)
> 
>         from
> /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support
> /dependencies.rb:452:in `const_missing'
> 
>         from
> /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support
> /dependencies.rb:464:in `const_missing'
> 
>         from
> /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support
> /inflector.rb:250:in `constantize'
> 
>         from
> /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support
> /core_ext/string/inflections.rb:148:in `constantize'
> 
>         from
> /usr/local/lib/ruby/gems/1.8/gems/railroad-0.4.0/lib/railroad/models_dia
> gram.rb:25:in `generate'
> 
>         from
> /usr/local/lib/ruby/gems/1.8/gems/railroad-0.4.0/lib/railroad/models_dia
> gram.rb:24:in `each'
> 
>         from
> /usr/local/lib/ruby/gems/1.8/gems/railroad-0.4.0/lib/railroad/models_dia
> gram.rb:24:in `generate'
> 
>         from
> /usr/local/lib/ruby/gems/1.8/gems/railroad-0.4.0/bin/railroad:40
> 
>         from /usr/local/bin/railroad:16:in `load'
> 
>         from /usr/local/bin/railroad:16
> 
> This "pd.rb" in the error uses the postgre db conection.
> 
> The contents of the pd.rb file are
> 
> "
> 
> class PD < ActiveRecord::Base
> 
>   connection = "puredisk_#{ENV['RAILS_ENV']}"
> 
>   establish_connection connection.to_sym
> 
> end
> 
> class PD::Policy < PD; set_table_name 'policy'; end
> 
> class PD::Dsinpolicies < PD; set_table_name 'dsinpolicies'; end
> 
> class PD::Dataselection < PD; set_table_name 'dataselection'; end
> 
> class PD::Agent < PD; set_table_name 'agent'; end
> 
> class PD::Job < PD; set_table_name 'job'; end
> 
> class PD::Policyrun < PD; set_table_name 'policyrun'; end
> 
> class PD::Dstemplate < PD; set_table_name 'dataselectiontemplate'; end
> 
> class PD::Policytype < PD; set_table_name 'policytype'; end
> 
> "
> 
> And the rails_env is "development"
> 
> Thanks in advance ..
> 
> Regards,
> 
> Anand.
> 
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