similar to: [PATCH] #6040 STI and Polymorphism docs

Hi all, I need to model simple typed polymorphic relations: ''John'' [''works_for''] ''Bill'' ''John'' [''speaks_for''] ''Microsoft'' ''Microsoft'' [''hold_shares_of''] ''Apple'' I''m having a hard time combining : - S.T.I.

Hello everyone, I am racking my brain with a modelling question and can''t wrap my around the benefits of STI or Polymorphisms. I am trying to model Questions and Answer behavior but I think I am not using rails full power here. I have (in simple terms) Question has_one Answer Answer belongs_to Question I also have Topic has_many Posts Post belongs_to Topic Now i am

Ticket 4052 (http://dev.rubyonrails.org/ticket/4052) just came through trac, which introduces the need for a better way to access fixtures. I believe the basic problem is the same as 3935 (http://dev.rubyonrails.org/ticket/3935) in that the accessor method which is constructed by the fixture call can''t infer the class name from the table name. The band-aid in 3935 was to allow you to

Hi, lets say I have a a table, "Linkings" that I am using for polymorphic associations. One of the associations is to the "person" table, and there are several other associations. "Person" has 2 types, "slacker" and "suckup". It is modelled as such: class Linking < ActiveRecord::Base belongs_to :person belongs_to :linkable, :polymorphic

I would like to associate a ‘product’ model with 3 models inherited from ‘image’: part, action and accessory. I have it working with Has_many :through relating products to images through attachments, I then have to determine the ‘type’ of the STI extension. This means i have to go product.images. While this is ok, i can see it getting tricky when i want to go products.images <<

Can I get some feedback on ticket 5838? I''ve got a patch and testcase that works. Rick seems to be opposed to the patch because I''m not solving all the join issues, but I''d argue that you should at the very least get the sort of object your asked for back. Account.find_by_sql() should -never- return something other than Account objects. -- Kevin Clark

Hi, Review would be appreciated on this patch which stops find returning incorrect results when multi-level STI models are eagerly loaded: http://dev.rubyonrails.org/ticket/10624 -- We develop, watch us RoR, in numbers too big to ignore. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails:

Hi, I am having a problem saving a new model that has an associated child model. If a new ticket is being created and will have one comment to go with it then I tried this in my action @ticket = Ticket.new(params[:ticket]) @comment = Comment.new(params[:comment]) @ticket.comments << @comment if @ticket.save @notice = "Ticket added. Thanks for

I am having trouble with an many to many polymorphic association with STI involved. The problem is described clearly in the following StackOverflow question, so I will leave this thread short: http://stackoverflow.com/questions/6582074/activerecord-has-many-through-polymorphic-associations-with-sti I am posting here hoping to get advice/direction/a solution for this, as I''ve so far been

I''m stumped on how to get past this. It''s Rails 2.0.2. I have a class, Show. Using STI, I''m using that as a base class, and have DayShow and NightShow that inherit from it. ### class Show < ActiveRecord::Base end class DayShow < Show end ### In my shows/edit.html.erb, I have: <% form_for(@show) do |f| %> However, when I use it with a @show that has

If I define an association (in my case a polymorphic one) in an STI parent class, and try to eagerly load it in a subclass, I get the following error: ActiveRecord::ConfigurationError: Association name ''myassoc'' was not found; perhaps you misspelled it? If I redefine the same association again in the STI subclass, it works. Is this a bug or what? -- You received this message

I have a MasterEvent model. It has attributes that is required by another model Event. The user selects the MasterEvent model and I create the Event model by merging the attributes of the selected MasterEvent with the attributes that were presented for the Event model in the form. I have association declarations in the MasterEvent and Event models. If I use STI does the subclasses inherit the

I''ve made a inheritance rework some weeks ago that would possible fix it since it only loads the inheritance support in the class that''ll use it. In STI case, it would load only if the class that descends directly from AR has been inherited and the column specified in the inheritance_column is available. People here told me to wait until next release so we can dig into this, but

Hello, I''m creating my own Tumblr [tumblr.com] like rails app. It''s like a blog, but in this case a blog post could be of a certain type, i.e. a regular post, a video, a link, a photo, a song(info). Well now, it''s clear that they share a lot of similar functionality: title, created_at/updated_at, commentable, probably has an author_id, etc.. But besides that they are

I''ve been running into a problem where ActiveRecord 2.3.5 isn''t deserializing a serialized column in derived classes: http://pastie.org/856463 I''ve been able to replicate this test with Ruby 1.8.6p369, 1.8.7p72, and 1.8.7p174 on different systems, any thoughts? Dustin Lundquist -- You received this message because you are subscribed to the Google Groups

There is a dedicated section about eager loading in the docs. A coworker discovered eager loading does not work in polymorphic associations the hard way :-) so I''ve written a patch that documents it: http://dev.rubyonrails.org/ticket/10610 There are at least a couple of tickets that implement something that would change that though: http://dev.rubyonrails.org/ticket/9640

I have the following polymorphic association set up with acts_as_relation (https://github.com/hzamani/acts_as_relation) Model code: class Email < ActiveRecord::Base belongs_to :detail validates_presence_of :address end class Detail < ActiveRecord::Base acts_as_superclass has_many :emails accepts_nested_attributes_for :emails, allow_destroy: true

Hi, I''m currently having the situation where I have to implement a polymorphic has_and_belongs_to_many by introducing an in between model that handles all the "has_many :as" and "belongs_to :polymorphic" association implementations... and is not doing anything else. Thing I don''t like it here is, I am unnecessarily loading AR instances only to execute SQL

Hi. I am currently developing a small course system for student and teachers. The system is divided in sections and sections have many messages, comments, documents and schedules. Pretty easy to set up using ROR, just add some belongs_to and has_many relations. But everything becomes much more complicated when the section items (message, comment and so on...) all has comments. And they can also be

Hi, I''m interested in using a currency conversion web service in my rails app. Does anyone have a free service that they use and like? I found this one http://www.webservicex.net/WS/WSDetails.aspx?CATID=2&WSID=10 I''ve tried to make a simple, plain Ruby script to connect to this and get a conversion rate without success. How do I integrate a webservice into my rails app? I