Colin, I figured out most of it. But stayed stuck on a detail.
My app now has Account, User, and Role models. The Role model links the
Account and User models. User has_many roles, and has_many accounts through
roles. User accepts_nested_properties for accounts.
Everything works except for setting an extra attribute on the Role model.
The Role model has a role_type column that I want to set when the records
are created. It keeps showing up blank though.
Basically, when the User and the Account objects are created, I want the
Role model that joins them to have "owner" in the role_type column. But
it's showing up blank. I feel like I am mixing up "ownership" with "roles",
yet it seems natural to store the in the same table. I thought I could use
inheritance to simplify it, but it's causing more headaches. I can't change
the type column arbitrarily if I wanted to change the role of a use for
My questions are: How do I set the role_type column? And is it stupid? It
doesn't seem like a good way to set up something meant to be secure in such
Should I use inheritance instead and create separate associations for each
class User < ActiveRecord::Base
attr_accessible :name, :email, :password, :password_confirmation,
has_many :accounts, through: :roles
class Account < ActiveRecord::Base
has_many :users, through: "roles"
class Role < ActiveRecord::Base
attr_accessible :account_id, :user_id, :role_type
@user = User.new
@role = @user.roles.build(role_type: "owner")
@account = @user.accounts.build
@user = User.new(params[:user])
<%= simple_form_for @user do |f| %>
<%= f.simple_fields_for :accounts do |account_form| %>
<%= account_form.input :title %>
<% end %>
<%= f.input :name %>
<%= f.submit 'Sign up', class: 'btn btn-primary' %>
<% end %>
On Tuesday, March 6, 2012 12:39:46 PM UTC-3, Colin Law wrote:
On 4 March 2012 17:25, Mohamad El-Husseini wrote:
I'm a bit unsure how to model a relationship in ActiveRecord. It's a
"has many through" with nested attributes. I already asked on SO but no
luck so far. I would appreciate it if you could have a look and point me in
the right direction. Feel to answer here or there! The question is here:http://stackoverflow.com/questions/9555888/what-active-record-association-do-i-use-in-this-scenario
I won't repeat myself, as the question does a good job of explaining,
but I want to create users through accounts, and model the relationship
through a relationship table.
Better to repeat the question here. I cannot answer the questions
without quoting it here which would mean I would have to copy bits
from the link and paste them in here, which is too much effort. Also
many will not be bothered to take the time to go and look somewhere
else for your question.
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