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rails--rails/activemodel/test/models/topic.rb

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# frozen_string_literal: true
class Topic
include ActiveModel::Validations
include ActiveModel::Validations::Callbacks
include ActiveModel::AttributeMethods
include ActiveSupport::NumberHelper
attribute_method_suffix "_before_type_cast"
define_attribute_method :price
def self._validates_default_keys
super | [ :message ]
end
attr_accessor :title, :author_name, :content, :approved, :created_at
attr_accessor :after_validation_performed
attr_writer :price
after_validation :perform_after_validation
def initialize(attributes = {})
attributes.each do |key, value|
send "#{key}=", value
end
end
def condition_is_true
true
end
def condition_is_false
false
end
def perform_after_validation
self.after_validation_performed = true
end
def my_validation
errors.add :title, "is missing" unless title
end
def my_validation_with_arg(attr)
errors.add attr, "is missing" unless send(attr)
end
def price
number_to_currency @price
end
def attribute_before_type_cast(attr)
instance_variable_get(:"@#{attr}")
end
end