Rails - Jul 2006 - Validating two models

Hi,

I have a model Account wich "has_one" model called UserData. Both
models
use validation.

# Model contains user name, email etc.
class Account < ActiveRecord::Base
  has_one :user_data, :foreign_key => "user_id"

  validates_presence_of :email
end

# Model contains firstname, lastname etc.
class UserData < ActiveRecord::Base
  set_table_name("user_data")

  validates_length_of :firstname, :lastname, :maximum => 10
end


I save the model in the AccountController like that:

  @account = Account.new(params[:account])
  @account.user_data = UserData.new(params[:user_data])
  @user_data = @account.user_data
  @account.save

Now I got the validation errors for Account, but not for UserData. How 
can I get these errors for both models?

Thanks
  Steffen

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On 7/29/06, Steffen Binas <steffen@kitefish.com>
wrote:
>
> Hi,
>
> I have a model Account wich "has_one" model called UserData. Both
models
> use validation.
>
> # Model contains user name, email etc.
> class Account < ActiveRecord::Base
>   has_one :user_data, :foreign_key => "user_id"
>
>   validates_presence_of :email
> end
>
> # Model contains firstname, lastname etc.
> class UserData < ActiveRecord::Base
>   set_table_name("user_data")
>
>   validates_length_of :firstname, :lastname, :maximum => 10
> end
>
>
> I save the model in the AccountController like that:
>
>   @account = Account.new(params[:account])
>   @account.user_data = UserData.new(params[:user_data])
>   @user_data = @account.user_data
>   @account.save
>
> Now I got the validation errors for Account, but not for UserData. How
> can I get these errors for both models?
>
> Thanks
>   Steffen
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails

In your view include a call to error_messages_for for both objects

<%= error_messages_for ''account'' %>
<%= error_messages_for ''user_data'' %>

The error messages for will look up an instance variable with the name
provided, query the AR object for it''s errors and display them.  You
can
list as many as you like.
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I tried this already. But it only works if I explicitly save  
"user_data". But user_data is implicitely saved by
"@account.save"
because it is in an "account has_one user_data" relationship.

When saving explicitly I have the problem that account may be saved but  
user_data is not because of validation errors. Maybe I need a  
transaction here? What would be the syntax?
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On 31 Jul 2006 07:56:10 -0000, Steffen Binas
<devlists-rubyonrails@devlists.com> wrote:
> I tried this already. But it only works if I explicitly save
> "user_data". But user_data is implicitely saved by
"@account.save"
> because it is in an "account has_one user_data" relationship.
>
> When saving explicitly I have the problem that account may be saved but
> user_data is not because of validation errors. Maybe I need a
> transaction here? What would be the syntax?
user_data.valid? could help you out on the validation, but you
definitely want a transaction here, unless you want to allow accounts
without user_data.  I like to enforce this referential integrity at
the DB as well.