similar to: Table relationships with single table inheritance

I''ve been searching the web, wikis, and more, and I haven''t turned up examples of how to have multiple entities in a single-table inheritance related to anything. I have an addresses table, but multiple entities can have Addresses: both Person (which has 2 addresses) and Retailer. I''ve been told that I need to use single-table inheritance, and this was my attempt:

Hi, I have a simple program that tries to do something really basic. First, I have a company Model : ------------------------------------- class Company < ActiveRecord::Base has_one :billingAddress, :foreign_key=>"id", :class_name=>"Address" end Then I have the address Model : -------------------------------------- class Address< ActiveRecord::Base belongs_to

I have the following models: class Order < ActiveRecord::Base belongs_to :billing_address belongs_to :shipping_address accepts_nested_attributes_for :billing_address accepts_nested_attributes_for :shipping_address, :reject_if => proc { |attributes| attributes[''has_shipping_address''] != ''1'' } def after_initialize self.build_billing_address

I am having a problem with using SIngle Table Inheritance with a has_one relationship, and I am at a loss of what could be causing it. Below is the related code and the error message. class User < ActiveRecord::Base has_one :wishlist end class List < ActiveRecord::Base belongs_to :user end class Wishlist < List has_and_belongs_to_many :items, :class_name =>

I''m trying to figure out the Rails way to model the following problem: I have 2 tables. One (let''s call it location) contains a single address. The other (let''s call it company) contains 3 address. I''m trying to figure out the best way to model this. I''ve created an address table, a set up the model as follows: class Address <

Hello, I have a form that submits data to two related models/tables. One is Customer the other is Address. Validation for Customer works fine but not for the Address. Class Customer < ActiveRecord::Base has_one :address validates_presence_of :login, :password, :email validates_associated :address end Class Address < ActiveRecord::Base belongs_to :customer validates_presence_of

Hi, Correct me if I am wrong but there doesn''t seem to be an easy way to add validation outside the pre-built ones (validates_presence_of, validates_lenght_of, etc.). Ideally there should be something like: Class Person < ActiveRecord::Base validates :my_method, :on => create, :message => ''was not valid'' def my_method(param) false unless

I''ve got some problems right now using the new model for relationships in fixtures (by label, not by id) and STI. What I''ve got, is a couple of models: Attachment --> FileDownload Version Version has_one file_download with file_download_id on the versions table In my fixtures, I have two FileDownloads in my attachments.yml like so: hemingway_alpha_zip: size: 100

I have a people table with four types of people: clients, spouses, children, and others all setup using single-table inheritance with a foreign key back to a household record. A Household has_one client and spouse, and has_many children and others. I want to use a single "Household.find(@session [:household_id], :include => [:client, :spouse, :children, :others])"

Hi Everyone, I hope I get some feedback on my question. Here it goes. I have a situation here, I have a company table and then using Single Table inheritance it is of 3 types: class Company < ActiveRecord::Base end class Vendor < Company end class Customer < Company end class Agent < Company end Now I have a active record Association class QuoteSheet < ActiveRecord::Base

Hi there I''m in the process of developing an e-commerce Rails app but am getting a little stuck on what models I should be working with on the order/checkout side of things. The app requires users to be registered and authenticated to checkout. So I already have a User model and an Order model (which belongs to a User). The Order model is largely similar to that used in the Agile Rails

Hello, I posted a similar email, earlier in the week, but I still must not be getting it. I have a customer that aggregates two addresses; a shipping address and a billing address. Addresses can also be referenced by other objects in a similar way, so I would really like to avoid putting the keys referencing the customer or other objects in the addresses table. Addresses are exclusively

I''m wondering whether I''m wasting my time trying to verify that an addition I''ve made to legacy code is in fact setting a new attribute on a model. Substruct''s (http://dev.subimage.com/projects/substruct) OrderHelper contains this method: 1 def create_order_from_post 2 @use_separate_shipping_address = params[:use_separate_shipping_address]

Please tell me if this train of thinking makes sense, I need help on solving this association model problem: I am doing an app that creates and manages stereoscopic images, one stereoscopic image is formed by two photos, say photo1 and photo2 The user uploads photo1 and then photo2 and gets a preview if he likes the preview he/she authorizes it and gets a final stereoscopic image All this

I have an AR::Base descendant with a complex object graph beneath it, like so: ArtisanQuoteInput has_one QuoteInput and then QuoteInput has several objects attached to it. Note that the relationship between ArtisanQuoteInput and QuoteInput is polymorphic, so the relationship in A is written has_one :quote_input, :as => :program_quote_input If @artisan_quote_input is an instance of

Hello, is there something wrong with using has_one to implement Class Table Inheritance ? Eg. class Person < ActiveRecord::Base # attributes : eg. name, string end class Contact < Person # attributes : has_one :Person belongs_to :Company end Of course for a such simple case I could use Single Table Inheritance but this is only an example and I don''t like too much the

I am using RoR ActiveRecord polymorphic inheritance and was wondering if it''s possible to access the base class'' association methods in the invocation of either to_xml or to_json without having to depict the base class data in the serialized string. Here are my classes: # base class class Asset < ActiveRecord::Base belongs_to :resource, :polymorphic => true

I am not sure if this is a bug in ActiveRecord or is this the intended behavior. If it is then it does not make sense to me. In a nutshell: If you change an aggregate object attribute created via composed_of method (see Agile Web Development - Second Edition Chapter 17 page 313 onwards) and then save the model, the change to the model (composite attribute specifically) will not be saved UNLESS

I have one table, called "people". Within this table, there are type "users", "managers".... etc. So, basic STI. Now, I want a "user" to have one manager, but a "manager" to have many "users". Since I don''t want to use HABTM... how do I set this relationship up seeing that :has_one, :belongs_to and :has_many don''t

I am very confused about where to put the belongs_to and the has_one (and other relationship identifiers). I have read the RDoc and the agile book many times about this and I think i still see it backwards. Let me outline my app so you have an understanding... I have 2 tables: Schools { id, school_name, address_id } and Addresses { street1, street2, city, state, zip, country } *** this