Add validations directly to instances of your AR model, not just at the class-level
patmaddox/instance_validations
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InstanceValidations =================== ActiveRecord lets you define validations at the class level. This plugin lets you define validations for ActiveRecord instances. Take the following ActiveRecord class: class Chicken < ActiveRecord::Base include InstanceValidations # Has two columns, name and home_town. Only validate name validates_presence_of :name end All instances of Chicken will require a name in order to be valid. If you don't define any instance validations, you'll get the expected behavior: chicken = Chicken.new chicken.valid? => false, will have an error on name If you do specify instance validations, the class validations are ignored and only instance validations are used: chicken_without_a_name = Chicken.new class << chicken_without_a_name validates_presence_of :home_town end chicken_without_a_name.valid? # => false, will have an error on home_town but not name chicken_without_a_name.home_town = "Roostershire" chicken_without_a_name.valid? # => true Written by Pat Maddox. Released under the MIT License. svn://evang.eli.st/public/plugins/instance_validations
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Add validations directly to instances of your AR model, not just at the class-level
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