Rails - Oct 2005 - Change model validation depending on controller?

For some reason I can''t solve this one ... I''m trying to skip
a
custom validation on a model when a certain controller accesses it.   
Is this possible?  I''m thinking that I would need something this, but  
I can''t figure out the syntax:

def validate
     unless current_controller == ''admin/users''
       errors.add(''password'', ''and confirmation do
not match'') unless
password_confirmation == password
     end
end


TIA

On Oct 26, 2005, at 4:56 PM, cleaner416 wrote:
> For some reason I can''t solve this one ... I''m trying to
skip a
> custom validation on a model when a certain controller accesses  
> it.  Is this possible?  I''m thinking that I would need something  
> this, but I can''t figure out the syntax:
>
> def validate
>     unless current_controller == ''admin/users''
>       errors.add(''password'', ''and confirmation
do not match'')
> unless password_confirmation == password
>     end
> end
>
>
It looks like you''re doing this a little backwards... at least,  
you''re causing the model to "control" the controller by
imposing a
rule that says "Only certain controllers can skip this validation".

If I were to tackle this problem, I would do it in one of two ways:  
role-based permissions, or else an "admin_mode" attribute in your  
model.  To accomplish the latter (probably the simpler of the two):

class User < ActiveRecord::Base
	attr_accessor :admin_mode

	# [other stuff in the model goes here]

	def not_admin_mode
		(not admin_mode)
	end

	validates_confirmation_of :password, :if => :not_admin_mode
end

Then in the controller, I would do the following before attempting to  
save:

class Admin::UsersController < ApplicationController
	def update
		@user = User.find(params[:id])
		@user.admin_mode = true # Note that this attribute will NOT be  
saved in the db
		if @user.save
			# Success
		else
			# Failure
		end
	end
end

Duane Johnson
(canadaduane)

On 27-okt-2005, at 1:56, cleaner416 wrote:
> For some reason I can''t solve this one ... I''m trying to
skip a
> custom validation on a model when a certain controller accesses  
> it.  Is this possible?  I''m thinking that I would need something  
> this, but I can''t figure out the syntax:
>
> def validate
>     unless current_controller == ''admin/users''
>       errors.add(''password'', ''and confirmation
do not match'')
> unless password_confirmation == password
>     end
> end
This is wrong.
If your form doesn''t SEND the confirmation in the first place it will  
not be required by ActiveRecord validation.
Which transforms your code into the view:

<%= password_field ''user'', ''password''
%>
<% unless controller.controller_name == ''admin/users'' %>
   <%= password_field ''user'',
''password_confirmation'' %>
<% end %>
-- 
Julian "Julik" Tarkhanov