activemodel/test/models/custom_reader.rb


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# frozen_string_literal: true
class CustomReader
  include ActiveModel::Validations

  def initialize(data = {})
    @data = data
  end

  def []=(key, value)
    @data[key] = value
  end

  def read_attribute_for_validation(key)
    @data[key]
  end
end