similar to: Looking for Help/Advice on StackOverflow Question - Polymorphic Association with STI

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 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 <<

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

Hey guys, I''ve been thinking lately about polymorphic associations, and I wonder: is there a noticeable or tangible performance "hit" from doing polymorphic associations when you''ve got your database under really high query load? So for example, maybe I have a "message" model, a "user" model and an "administrator" model, without any

Hello, is it possible to setup a model/table schema like this: Groupable --> Membership <-- Group ^ ^ | | User UserGroup I tried the following but failed: Groupable (table with ''type'' column) has_many :memberships, :as => :groupable has_many :groups, :through => :memberships

If anybody on edge familiar with this could help, that would be "great" :) I have different types of things I want to be "reviewable". So, instead of having a slew of HABTM... this new Polymorphic Associations schtick seemed like the best solution. I have everything setup as I thought it should be (so I think)... but it doesn''t appear to be working correctly. Here

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

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 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.

im having an issue where my my polymorphic associations arent being deleted when using accepts nested attributes there are other accepts_nested_attributes being used and they are deleting fine, just the polymorphic association before i go down the path of intense thrashing at this...is this a known issue or problem? -- Posted via http://www.ruby-forum.com/. -- You received this message because

Hi all. I''m having a problem naming a polymorphic relationship. Here''s my thinking... First, an analogy. You''re walking through the mall. Through a window you see a game you''re interested. I''m attempting to model the relationship between your interest and the game you''re interested in. I have an InterestList. It''s job is to maintain

Hi, I''m new to rails/ruby and not a sw programmer in the first place. I''d like to use polymorphic associations to create tags/marks into several dictionary tables (i.e japanese to english and japanese to french) that share the same model. In that model I introduced a :target field to select the database in a find query, i.e: def self.find(*args) for i in args if

I am unable to call a polymorphic scope using the searchlogic plugin as it keeps on returning ''undefined method''. I am certain it is only a problem within my project as I created a test project and I was able to call a polymorphic scope using the searchlogic plugin. I am hoping someone can provide a suggestion on how to debug this issue. My project consists of several gems, and

Running into an interesting problem that at first glance appears to be a bug in the AR association code. However, it''s explicitly coded this way so I''m not so sure. I have some code like this: class Address < ActiveRecord::Base belongs_to :addressable, :polymorphic => true end class Person < ActiveRecord::Base has_many :addresses, :as => :addressable,

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

Hi, Why is it that polymorphic associations only work with the :has_many and :belongs_to relationships? Why can''t it be a :has_one? Matt

Hey all, Could use a few eyes on a couple of very simple patches at https://rails.lighthouseapp.com/projects/8994/tickets/6262 if any has some time. The issue (from the ticket description): If you define a polymorphic belongs_to association and it has conditions on it, those conditions cause a NameError when you try to access the target object, of the style saying "hey, there''s no

I have 3 models . Doctor, Patient and User with following associations class Doctor < ActiveRecord::Base has_many :patients, :dependent => :destroy has_one :user, :as => :userable accepts_nested_attributes_for :user end class Patient < ActiveRecord::Base belongs_to :doctor has_one :user, :as => :userable accepts_nested_attributes_for :user end class User <

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