search for: subclasses_of

ActiveSupport provides a method Object.subclasses_of, shown below: def subclasses_of(*superclasses) subclasses = [] ObjectSpace.each_object(Class) do |k| next if (k.ancestors & superclasses).empty? || superclasses.include?(k) || k.to_s.include?("::") || subclasses.include?(k) subclasses << k end su...

ActiveSupport provides a method Object.subclasses_of, to give the subclasses of a given class. However, it ignores any subclass within a module, so : class A end class B < A end Object.subclasses_of(A) # returns [B] module C class D < A end end Object.subclasses_of(A) # returns [B], even though C::D is also a subclass of A class E &l...

I would like to get at all models in a rails application to be able to add a field to every one of them as part of a migration. Something like the following: Appmodels.each { |x| add_column x.table_name.to_s, :foo, :text } I understand I can get the table name using ActiveRecord::Base#table_name, but how do I get all the models into an array that I can use in the above manner? -- Cheers, Hasan

We''re migrating a Rails 2.3.x application to Rails 3 and RSpec 2.x. In Rails 2.3.x we were using https://github.com/freelancing-god/after_commit to provide after_commit functionality (now provided by Rails 3). The plugin version of after_commit came with some helpers to make testing with `use_transactional_fixtures = true` work. From: https://github.com/freelancing-god/after_commit

Hey :) I''m trying to create a method for making a sitemap dynamically. It works great for flat sites where you simply have your controllers in the app/controllers directory. In this case, I can extract the controller names like, @controllers ObjectSpace.subclasses_of(ActionController::Base).each do |obj| @controllers["#{obj.controller_name}"] = obj end However, now I''ve divided the site into modules, that is, I have for instance both Store::ItemsController and Manage::ItemsController, which reside in app/controllers/store and app/con...

Anyone know a pretty way to get a list of all Models? That is, a list of all classes which inherit from ActiveRecord:Base I can''t seem to figure it out! The best I''ve got is to list the /app/models directory... but, that is *dirty*. -hampton. -------------- next part -------------- An HTML attachment was scrubbed... URL:

...sc "Load fixtures into the current environment''s database and display invalid objects" task :validate do Rake::Task[''db:fixtures:load''].invoke Dir.glob(RAILS_ROOT + ''/app/models/*.rb'').each { |file| require file } Object.subclasses_of(ActiveRecord::Base).each do |klass| klass.find(:all).reject(&:valid?).each do |record| puts "#{record.class}: id=#{record.id}" p record.errors.full_messages puts end rescue nil end end end end -------------- next part ---------...

Anybody know how to get a list of all your model classes from a rails environment? I''d like to do something like "ActiveRecord::Base.subclasses" but that gives me: pcollins@horatio:~/proj/foobox$ script/console Loading development environment. >> ActiveRecord::Base.subclasses NoMethodError: protected method `subclasses'' called ... Anybody know how to do

Hi! I got a class named EinsatzFilter which I serialized to session. Before saving to session it works afterwards I keep getting the message: "undefined method `to_s'' for #<Person:0x38c6ab8>". "Person" is a from ActiveRecord::Base inherited class. Code: class EinsatzFilter include ApplicationHelper attr_reader :personen, :monat, :projekte, :kunde

How can I get a list of all model classes in the domain of a Rails application (all models, both in "app/models" and in components/somedir/model.rb)? Thanx in advance for your precious help! Edoardo "Dado" Marcora

Hi I am trying to use the RSS classes from "rss/2.0" and everything works but I want to know what attributes and properties I can get at from each of the classes I am getting back. For example, the class has a "channel" which I can tell has a "title" attribute (because it works when I query it :) but I would really like a list of every attribute that is

I''m studying the Agile Development with Rails book. In the chapter that first sets up the depot application (page 68), there is this bit of code from a view: <% for product in @products %> <tr> <% for column in Product.content_columns %> <td><%=h product.send(column.name) %></td> <% end %> etc... I am trying to absorb both Ruby and

i got the rails recipes book, i have now an auth system for users without problems, now i want to made a role based acces for my app, im following the "Role Based Authorization" recipe of the book but i cant make it to work even when the tables created and correctly added data manually definig the roles and rights. als i dont know how to define a right for use all the actions in a

Hello everyone, Do you feel it? The little shiver down your spine when you think of "namespacing" in rails? To some thats a common feeling, to people like myself who enforce absolute organization have already thought about the need for namespaces in rails. Now I do understand this is an ongoing effort... to some degree. Controllers and routes, from my experiences work well, that being,

DevTower Beta3! (0.3) I''m proud to announce some major changes and improvements to DevTower in this beta release! First and foremost, DevTower is now a full plugin. Also, DevTower works (only) with Rails 1.1. ==== ABOUT ===== DevTower used to synchronize the development of Ruby On Rails applications with developers working simultaniously on multiple systems with Subversion. DevTower