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Versions: 5
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Contents
# frozen_string_literal: true
require "paper_trail/attribute_serializers/attribute_serializer_factory"
module PaperTrail
# :nodoc:
module AttributeSerializers
# The `CastAttributeSerializer` (de)serializes model attribute values. For
# example, the string "1.99" serializes into the integer `1` when assigned
# to an attribute of type `ActiveRecord::Type::Integer`.
class CastAttributeSerializer
def initialize(klass)
@klass = klass
end
private
# Returns a hash mapping attributes to hashes that map strings to
# integers. Example:
#
# ```
# { "status" => { "draft"=>0, "published"=>1, "archived"=>2 } }
# ```
#
# ActiveRecord::Enum was added in AR 4.1
# http://edgeguides.rubyonrails.org/4_1_release_notes.html#active-record-enums
def defined_enums
@defined_enums ||= (@klass.respond_to?(:defined_enums) ? @klass.defined_enums : {})
end
def deserialize(attr, val)
if defined_enums[attr] && val.is_a?(::String)
# Because PT 4 used to save the string version of enums to `object_changes`
val
elsif PaperTrail.active_record_gte_7_0? && val.is_a?(ActiveRecord::Type::Time::Value)
# Because Rails 7 time attribute throws a delegation error when you deserialize
# it with the factory.
# See ActiveRecord::Type::Time::Value crashes when loaded from YAML on rails 7.0
# https://github.com/rails/rails/issues/43966
val.instance_variable_get(:@time)
else
AttributeSerializerFactory.for(@klass, attr).deserialize(val)
end
end
def serialize(attr, val)
AttributeSerializerFactory.for(@klass, attr).serialize(val)
end
end
end
end
Version data entries
5 entries across 5 versions & 2 rubygems