similar to: polymorphic has_many from ActiveRecord::Base????

I have the acts_as_commentable and a bunch of others added to pretty much every model, is there a way to automaically add these to EVERY model ? I tried the following but it fails with an error... ActiveRecord::Base.class_eval do has_many :notes, :as => :model_with_notes, :dependent => true end fails with.... /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.6/lib/active_record/

Hi, i am using Savage Beast 2.3 plugin for the forum and i got and error undefined method `has_many'' for Object:Class C:/forum/vendor/plugins/savage-beast/lib/savage_beast/user_init.rb: 9:in `included'' C:/forum/vendor/plugins/savage-beast/lib/savage_beast/user_init.rb: 7:in `class_eval'' C:/forum/vendor/plugins/savage-beast/lib/savage_beast/user_init.rb: 7:in

I am trying to inherit from a ActiveRecord class defined in a plugin. The problem is that ActiveRecord thinks I am doing an STI and is looking up a table that doesn''t exist. Currently, I have a method in the parent class that looks like this: def self.fix_table_name class_eval do set_table_name(Inflector.tableize(self.to_s)) end end The problem is that this method

hi, here is a snippet code in ROR''s attribure_accessor.rb. the usage of class_eval is different with "class_eval(string, <, file, <line>>)" somewhat, i don''t understand this usage, who can explain it more detail to me? def cattr_writer(*syms) syms.flatten.each do |sym| class_eval(<<-EOS, __FILE__, __LINE__) unless defined?

i keep getting this AssociationTypeMismatch error. i think this could be a bug related to ruby/rails when using mixins. heres a short version of my code: # user.rb require ''friend_invitation'' require ''friendship'' class User < ActiveRecord::Base include FriendInvitationUser, FriendshipUser ... end # friendship.rb ... module FriendshipUser def

In some of my unit tests, I find the need to set today to a different value than the actual today. For example, to test the model method "balance_of_today", which takes no argument, I want to have Date.today be a specific date for the purpose of testing. In other words, I want to do something like this: mock_today(Date.new(2008, 2, 1)) do ... test code... end My implementation for

I would like to apply logical delete in my application(Instead of permanently deleting a record just have been marked as deleted). I have Added *available* column to all tables with default value *true*. Now I want common place to write the following code for all models. 1. Write the instance method which make ''available'' column value false when user clicks on

Hi, I was trying to create an abstract class and a subclass which inherit that abstract class. However, seems like I cannot instantiate the subclass too. Below is my code: //abstractclass2.rb class Abstractclass2 < ActiveRecord::Base self.abstract_class = true end //subclass.rb class Subclass < Abstractclass2 end When I test drive it in rails console, I got the following error:

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

I''m writing my own plugin and all the plugins I''ve seen use class_eval in the method that is called in the including module. For example: http://wiki.rubyonrails.com/rails/pages/HowToWriteAnActsAsFoxPlugin module Foo module Acts #:nodoc: module Fox #:nodoc: def self.included(base) base.extend(ClassMethods) end # declare the class level

I am trying to write a plugin, ''acts_as_commentable'', for my models - Image, Book, Music and so on, I do not want to use polymorphic association, so very model should have its own comment class. Here is my code acts_as_commentable.rb module Commentable def self.included(base) base.extend(ClassMethods) end module ClassMethods def

Hi. I''m trying to monkey patch the rails_admin gem. First, I tried to add a file in config/initializers containing: RailsAdmin::MainController.class_eval do def get_sort_hash CODE HERE... end end It was only loaded once, and then the method from the gem was always executed instead of mine. I also tried to add the code in lib/ with the correct line in config/application.rb to load

Hey everyone, I''m interested in extending ActiveRecord::Base. I have a special "easier" find function that I want to include in all classes. How can I include this in all classes? Can I just create a model object that does something like this: class ExtendedAR < ActiveRecord::Base def self.special_find ... end end and then all my other classes

Hi, Four tables: users, user_counties, uk_counties and us_counties. Each user has many counties, and each county has many users, so I decided to make user_counties a polymorph, so it can have counties from different countries (each country requires a completely different set of tables with a completely different set of properties, that''s why there''s one table for uk_counties and

Josh Susser tells in his blog that the opposite direction of polymorphic will get into trouble together with has_many through. This is the url: http://blog.hasmanythrough.com/articles/2006/04/03/polymorphic-through I do that according to Josh Susser''s procedure: class Tagging < ActiveRecord::Base belongs_to :tag belongs_to :taggable, :polymorphic => true belongs_to

Hi. I have a couple of best practices questions regarding polymorphic associations, naming join tables and user permissions. Currently I have implemented the user authentication model from the rails recipes book. Basically it goes something like this: MODEL CLASSES: class User < ActiveRecord::Base has_and_belongs_to_many :roles end class Role < ActiveRecord::Base

Hi, Let''s say I''ve the following Models and their relative associations: Seat ---- belongs_to :booking Booking ------- has_many :seats has_many :debits, :as => :chargeable Debits ------ belongs_to :chargeable, :polymorphic => true Why >> seat.booking.debits nil while >> Booking.find(seat.booking_id).debits [] ? Thanks. Cheers, Marco

Hi everyone. Ive part of a project that I need to refactor, and im having some difficultly deciding which path to take. Perhaps someone can help, I think its primarily a design question. A Spec consists of many Nests and many Parts. Nests contain Parts. Here''s what I have, which works well currently: --------------------------------------------------- class Spec <<

Hi All, I have the following arrangement: class PickAndPackRequest < ActiveRecord::Base has_many :transactions, :as => :request has_many :postings, :through => :transactions end class Transaction < ActiveRecord::Base belongs_to :request, :polymorphic => true has_many :postings end class Posting < ActiveRecord::Base belongs_to :transaction end But when I ask for

I''m looking for a way to make this work (I think the code is more explanatory at this point): ## THIS WORKS has_many :images, :as => :imageable, :dependent => :destroy, :order => ''position ASC'' # @product.images => # ## THIS DOESNT has_one :featured_image, :as => :imageable, :conditions => "position = 1" # @product.featured_image =>