nested-attributes

Currently, an Item belongs_to a Company and has_many ItemVariants . I'm trying to use nested fields_for to add ItemVariant fields through the Item form, however using :item_variants does not display the form. It is only displayed when I use the singular. I have check my associations and they seem to be correct, could it possibly have something to do with item being nested under Company, or am I missing something else? Thanks in advance. Note: Irrelevant code has been omitted from the snippets below. EDIT: Don't know if this is relevant, but I'm using CanCan for Authentication. routes.rb

I have two models: class Shift < ActiveRecord::Base attr_accessible :ranges_attributes has_many :ranges accepts_nested_attributes_for :ranges, allow_destroy: true end class Range < ActiveRecord::Base belongs_to :shift validates :shift, presence: true end When, in my controller, I want to create a shift with ranges I'm getting: Shift.create! params[:shift] #ActiveRecord::RecordInvalid Exception: Validation failed: Shift ranges shift can't be blank If I remove validates :shift, presence: true from Range model this works beautifully. I'm able to create a new shift with his children. ActiveRecord

Models: class Topic < ActiveRecord::Base has_many :posts, :dependent => :destroy validates :name, :presence => true, :length => { :maximum => 32 } attr_accessible :name, :post_id end class Post < ActiveRecord::Base belongs_to :topic, :touch => true has_many :comments, :dependent => :destroy accepts_nested_attributes_for :topic attr_accessible :name, :title, :content, :topic, :topic_attributes end View: <%= simple_form_for :post, :url => { :controller => :posts, :action => "create" } do |f| %> <h1>Create a Post</h1> <%= f.input :name, :label => false, :placeholder => "Name" %> <%= f.input

I get ActiveRecord::RecordNotFound: Couldn't find Client with ID=3 for Order with ID= when trying to submit an Order form for an existing client. This happens through the form or the console by typing: Order.new(:client_attributes => { :id => 3 }) payment_form.html.erb : <%= semantic_form_for @order, :url => checkout_purchase_url(:secure => true) do |f| %> <%= f.inputs "Personal Information" do %> <%= f.semantic_fields_for :client do |ff| %> <%= ff.input :first_name %> <%= ff.input :last_name %> <!-- looks like semantic_fields_for auto-inserts a hidden field for client ID --> <% end %> <% end

I've watched the RailsCast, another nested attributes video, lots of SO posts, and fought with this for a while, but I still can't figure it out. I hope it's something tiny. I have two models, User (created by Devise), and Locker (aka, a product wishlist), and I'm trying to create a Locker for a User when they sign up. My login form has a field for the name of their new Locker (aptly called :name ) that I'm trying to assign to the locker that gets created upon new user registration. All I'm ever greeted with is: WARNING: Can't mass-assign protected attributes: locker I've tried every

I have been trying to figure this one out for a few days now. I am using Rails 4 (with the updated mass assignment technique) and trying to use nested attributes with a many-to-many relationship. My record is saving to the DB but everything is nil and I'm getting an "Unpermitted parameters: school, alumnis, prospects" error in my logs. Here's what I have: referral.rb class Referral < ActiveRecord::Base belongs_to :school belongs_to :alumni belongs_to :prospect end alumni.rb class Alumni < ActiveRecord::Base has_many :referrals has_many :prospects, through: :referrals accepts_nested_attributes