Rails - Oct 2005 - Partial validations in Wizards

Hi, all.

I need to implement registration wizard for ror app. Nothing special just
several sequent screens
1. Please enter your name, login password, email
2. enter date of birth, location
3. Something else
It is rather usual situation.

User comes to first screen and fills field press submit. Method
''step1'' of
register controller invoked.
The problem there with validation: I need only validate specific fields, not
all.
I am using now following code
@user = Character.new(params[:character])
@user.errors.add(''plan'') unless 1..4 === @character.plan
@user.errors.add_on_blank(%w(firstname lastname country))
But I fell like it is violation of DRY principle because I already have
validate rules in model.

What is the best pattern in this situation??

And one more question: where better to save data between wizard steps?? In
session or save to hidden fields? What do you advise me??
--
anatol


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In the model

def validate
   validate1
   validate2
   validate3
   validate4
end

def validate1
   # Check things that can be validated in step1
end

def validate2
   # Check things that can be validated in step2
end

def validate3
   # Check things that can be validated in step3
end

def validate4
   # Check things that can be validated in step4
end

Store the data in the session. That way the end user cannot modify it  
along the way.

-- 
-- Tom Mornini

On Oct 19, 2005, at 11:16 AM, Anatol Pomozov wrote:
> Hi, all.
>
> I need to implement registration wizard for ror app. Nothing  
> special just several sequent screens
>   1. Please enter your name, login password, email
>   2. enter date of birth, location
>   3. Something else
> It is rather usual situation.
>
> User comes to first screen and fills field press submit. Method  
> ''step1'' of register controller invoked.
> The problem there with validation: I need only validate specific  
> fields, not all.
> I am using now following code
>     @user = Character.new(params[:character])
>     @user.errors.add(''plan'') unless 1..4 ===
@character.plan
>     @user.errors.add_on_blank(%w(firstname lastname country))
> But I fell like it is violation of DRY principle because I already  
> have validate rules in model.
>
> What is the best pattern in this situation??
>
> And one more question: where better to save data between wizard  
> steps?? In session or save to hidden fields? What do you advise me??
> -- 
> anatol
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>