Here are the models

class User < ActiveRecord::Base
  has_many :companies, :through => :positions
  has_many :positions

class Company < ActiveRecord::Base
  has_many :positions
  has_many :users, :through => :positions

class Position < ActiveRecord::Base
  belongs_to :company
  belongs_to :user
  attr_accessible :company_id, :user_id, :regular_user
end

And my schema

create_table "positions", :force => true do |t|
  t.integer  "company_id"
  t.integer  "user_id"
  t.datetime "created_at",                     :null => false
  t.datetime "updated_at",                     :null => false
  t.boolean  "regular_user", :default => true
end

I have these params

Parameters: {"user"=>{"id"=>"", "first_name"=>"some", "last_name"=>"name",
"phone_number"=>"", "email"=>"something@gmail.com", "active"=>"true", 
"company_ids"=>["186"], "role_ids"=>["2"], "notification_ids"=>["1", "2", "3"]}}

THE PROBLEM I am running into is the positions.regular_user is always true when i do

@user.update_attributes(params[:user])  

or the

@user = User.new(params[:user])
if @user.save

pprobably because it defaults to true.... But i need to change to false if role_ids is > 3

any ideas on how to change the default flag