You can’t use a has_many :through like that, you have to do it like this: @company = Company.last @user = User.create( params[:user] ) @company.company_users.create( :user_id => @user.id ) Then you will have the association defined correctly. update In the case of the comment below, as you already have accepts_nested_attributes_for, your parameters would have to come … Read more
I would suggest to avoid using default_scope, especially on something like price on another table. Every time you’ll use that table, join and ordering will take place, possibly giving strange results in complex queries and anyway making your query slower. There’s nothing wrong with a scope of its own, it’s simpler and it’s even clearer, … Read more
Looks like I figured it out! Here’s what I got: My models: class Product < ActiveRecord::Base has_many :categorizations, dependent: :destroy has_many :categories, through: :categorizations accepts_nested_attributes_for :categorizations, allow_destroy: true validates :name, presence: true def initialized_categorizations # this is the key method [].tap do |o| Category.all.each do |category| if c = categorizations.find { |c| c.category_id == category.id … Read more
I think you can simply do this: @cust = Customer.new(params[:customer]) @cust.houses << House.find(params[:house_id]) Or when creating a new house for a customer: @cust = Customer.new(params[:customer]) @cust.houses.create(params[:house]) You can also add via ids: @cust.house_ids << House.find(params[:house_id])
Edit: Rails 3.1 supports nested associations. E.g: has_many :tasks has_many :assigments, :through => :tasks has_many :users, :through => :assignments There is no need for the solution given below. Refer to this screencast for more details. Original Answer You are passing a has_many :through association as a source for another has_many :through association. I don’t think … Read more
How about adding something like this into your User model? has_many :active_events, :through => :event_users, :class_name => “Event”, :source => :event, :conditions => [‘event_users.active = ?’,true] After that you should be able to get active events for a user just by calling: User.first.active_events