Flowdock
method

validates_acceptance_of

Importance_2
v2.3.2 - Show latest stable - 0 notes - Class: ActiveModel::Validations::ClassMethods
validates_acceptance_of(*attr_names) public

Encapsulates the pattern of wanting to validate the acceptance of a terms of service check box (or similar agreement). Example:

  class Person < ActiveRecord::Base
    validates_acceptance_of :terms_of_service
    validates_acceptance_of :eula, :message => "must be abided"
  end

If the database column does not exist, the :terms_of_service attribute is entirely virtual. This check is performed only if :terms_of_service is not nil and by default on save.

Configuration options:

  • :message - A custom error message (default is: "must be accepted")
  • :on - Specifies when this validation is active (default is :save, other options :create, :update)
  • :allow_nil - Skip validation if attribute is nil. (default is true)
  • :accept - Specifies value that is considered accepted. The default value is a string "1", which makes it easy to relate to an HTML checkbox. This should be set to true if you are validating a database column, since the attribute is typecasted from "1" to true before validation.
  • :if - Specifies a method, proc or string to call to determine if the validation should occur (e.g. :if => :allow_validation, or :if => Proc.new { |user| user.signup_step > 2 }). The method, proc or string should return or evaluate to a true or false value.
  • :unless - Specifies a method, proc or string to call to determine if the validation should not occur (e.g. :unless => :skip_validation, or :unless => Proc.new { |user| user.signup_step <= 2 }). The method, proc or string should return or evaluate to a true or false value.
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