Module: CheckedAttributes::ClassMethods

Defined in:
lib/checked_attributes.rb

Overview

Creates the attr_checked method

Instance Method Summary collapse

Instance Method Details

#attr_checked(attribute, &validation) ⇒ Object

attr_checked evaluates whether the value is valid



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# File 'lib/checked_attributes.rb', line 13

def attr_checked(attribute, &validation)
  define_method "#{attribute}=" do |value|
    raise ArgumentError unless validation.call(value)
    instance_variable_set("@#{attribute}", value)
  end

  define_method attribute do
    instance_variable_get "@#{attribute}"
  end
end