Is it possible to set an additional attribute on the join model when using accepts_nested_attributes_for?
I have User, Account, and Role models. The Account model accepts nested properties for users. This way users can create their account and user records at the same time.
class AccountsController < ApplicationController
def new
@account = Account.new
@user = @account.users.build
end
end
The above will work, but the user.roles.type defaults to member. At the time of registration, I need user.roles.type to default to admin. This does not work:
class AccountsController < ApplicationController
def new
@account = Account.new
@role = @account.role.build
# Role.type is protected; assign manually
@role.type = "admin"
@user = @account.users.build
end
end
Accounts#new
<%= simple_form_for(@account, html: { class: 'form-horizontal' }) do |f| %>
<legend>Account Details</legend>
<%= render 'account_fields', f: f %>
<%= f.simple_fields_for :users do |user_form| %>
<legend>Personal Details</legend>
<%= render 'users/user_fields', f: user_form %>
<% end %>
<%= f.submit t('views.accounts.post.create'), class: 'btn btn-large btn-primary' %>
<% end %>
Models:
class User < ActiveRecord::Base
has_many :roles
has_many :accounts, through: :roles
end
class Account < ActiveRecord::Base
has_many :roles
has_many :users, through: :roles
accepts_nested_attributes_for :users
end
# user_id, account_id, type [admin|moderator|member]
class Role < ActiveRecord::Base
belongs_to :user
belongs_to :account
after_initialize :init
ROLES = %w[owner admin moderator member]
private
def init
self.type = "member" if self.new_record?
end
end
Inheritance could solve this issue but I find it complicates things. I need roles to be dynamic so users can add their own admins and mods, and so on. I think I'm running into these issues because I'm not modeling my data modeling correctly.
