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Hi I'm trying to setup a validation that is only called in a specific form view, to do this I'm trying to create a hidden_field for a virtual attribute on the form and set this to a value, then validate :if the virtual attribute equals the value. So far I have: ## user model validates_presence_of :password_confirmation, :if => :confirmation_validation attr_accessible :email, :password, :password_confirmation, :remember_me, :name, :avatar, :username, :bio, :confirmation_validation def confirmation_validation # not sure what goes here??? end ## form view <%= form_for(resource, :validate => true, :as => resource_name, :url => registration_path(resource_name), :html => { :method => :put }, :html => {:multipart => true}) do |f| %> <%= devise_error_messages! %> <%= f.label :password %> (leave blank if you don't want to change it) <%= f.password_field :password %> <%= f.label :password_confirmation %> <%= f.password_field :password_confirmation %> <% f.hidden_field :confirmation_validation, :value => 100%> <%= f.submit "Update" %> <% end %>

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