Question

I’m seeing a lot of stuff about saving with nested forms, but all of them have the opposite relationship than mine. Customer Info belongs_to User, but I want to update the user email from Customer Info. Right now the view is working, it’s just not saving.

I have the following relationships defined:

class User < ActiveRecord::Base
    has_one :customer_info, dependent: :destroy
  accepts_nested_attributes_for :customer_info
end

class CustomerInfo < ActiveRecord::Base
  belongs_to :user
  attr_accessible :user, :email
  accepts_nested_attributes_for :user
end

And the following nested form:

%h1 Editing customer_info

= form_for @customer_info, :validate => true do |f|
  - if @customer_info.errors.any?
    #error_explanation
      %h2= "#{pluralize(@customer_info.errors.count, "error")} prohibited this user from being saved:"
      %ul
        - @customer_info.errors.full_messages.each do |msg|
          %li= msg

  %h2 Your Profile

  = fields_for @user do |i|
    .field
      = i.label :email, 'Email'
      = i.text_field :email

  .field
    = f.label :username, "Username"
    = f.text_field :username

  .actions
    = f.submit 'Next'

Answer 1

Turns out it actually was saving through something I did along the way, I was just using devise, so it wasn’t letting me just change the email in the database, I had to confirm.

Thanks to Ahmad for encouraging me to CHECK OUT THE CONSOLE to get a better idea of what was happening.