active-form is a plugin that makes it easy to have model objects that support the ActiveRecord Validations but are not backed by database tables. The plugin is designed to make it possible to use the ActiveForm derived classes in a very similar manner to the ActiveRecord::Base derived objects.
Originally described at;
www.realityforge.org/articles/2005/12/02/validations-for-non-activerecord-model-objects
class Search < ActiveForm
attr_accessor :text validates_length_of :text, :maximum=>30
end
class NavigatorController < ApplicationController
def search
@search = Search.new(params[:search])
if @search.valid?
...do search here...
end
end
end
<%= start_form_tag(:action => ‘search’) %> <%= error_messages_for(‘search’) %> <%= text_field(‘search’, ‘text’, {“maxlength” => 30}) %> <button type=“submit”>Save</button> <%= end_form_tag %>
License: Released under the MIT license.
Peter Donald <peter at realityforge dot org>. Dae San Hwang for fix to work with Rails 1.1. Trevor Squires for suggestion to use Reloadable::Subclasses rather than dispatcher hack for Rails 1.1. Tim Lucas for patch to allow bulk addition of attributes. Geoff Schmidt for adding support for Callbacks. Sean Christman for attributes getter. Jack Christensen for attributes setter. Troy Anderson for fixing human_attribute_name for localizations.