Nested one-to-one forms question

Rails
1

Hello, I must admit I’m new to rails (I actually come from the .net
world, but I’ve been meaning to expand for some time now)

I’m trying to create a user registration page (just getting my feet wet
really) and I’ve hit a wall. I’m pretty sure I’m doing this wrong, so I
need some straightening out :slight_smile:

My db looks something like this:

UserAccount: Name, Email, Website, Status
Password: Key, Question, Answer

and my models:

class UserAccount < ActiveRecord::Base
validates_presence_of :Name, :Email
validates_uniqueness_of :Name, :Email

has_one :Password

accepts_nested_attributes_for :Password
end

class Password < ActiveRecord::Base
belongs_to :user_account

attr_accessor :password_confirmation
validates_confirmation_of :password
end

and the form that I’m trying to produce:

<% form_for(@user_account) do |f| %>
<%= f.error_messages %>

Required 
<p>
  <%= f.label :Name %><br />
  <%= f.text_field :Name %>
</p>

<% f.fields_for :Password do |fp| %>
  <p>
    <%= fp.label :Password %><br />
    <%= fp.password_field :key %>
  </p>
  <p>
    <%= fp.label :password_confirmation %><br />
    <%= fp.password_field :password_confirmation %>
  </p>
<% end %>
<p>
  <%= f.label :Email %><br />
  <%= f.text_field :Email %>
</p>
Optional

<%= f.label :Website %>
<%= f.text_field :Website %>

<%= f.label :Status %>
<%= f.text_area :Status %>

<%= f.submit 'Create' %>

<% end %>

Now, as is, the browser doesn’t render the password at all. I think
that it is because “fields_for” is expecting a one-to-many relationship
and finding a one-to-one relationship (?), but if I take out the line
accepts_nested_attributes_for :Password I get the following error:

ActiveRecord::AssociationTypeMismatch in User accountsController#create
Password(#57105720) expected, got HashWithIndifferentAccess(#30298510)

I’m really stuck and I probably look really dumb, so that’s why i’m here
:slight_smile:

Thank you for ANY advice and sorry for my poor design/implementation

2

whoa, I guess I better explain what I’m trying to do.

What I want to do is be able to create a User and a Password object with
the same form. I’m going to add the question part later (once this is
done)

I figure that since User has a single instance of a Password, I could
gain access to it just like an attribute, and render the text_fields
with :Password.Key or :Password.Question, but that doesn’t work either.

So if I can be shown how to edit 2 models (or just a model and its sub
model) with the same form, that would be excellent

Thanks!

3

Joel Day wrote:

whoa, I guess I better explain what I’m trying to do.

What I want to do is be able to create a User and a Password object with
the same form. I’m going to add the question part later (once this is
done)

I figure that since User has a single instance of a Password, I could
gain access to it just like an attribute, and render the text_fields
with :Password.Key or :Password.Question, but that doesn’t work either.

So if I can be shown how to edit 2 models (or just a model and its sub
model) with the same form, that would be excellent

Thanks!

Basically in your controller have the new action create 2 new instances:

@user_account = User.new
@user_account.password.build

form_new needs these new instances, specially the password one. That is
why its not rendering it.