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module AttrJson
# A little wrapper to provide an object that provides #dump and #load method for use
# as a coder second-argument for [ActiveRecord Serialization](https://api.rubyonrails.org/classes/ActiveRecord/AttributeMethods/Serialization/ClassMethods.html),
# that simply delegates to #serialize and #deserialize from a ActiveModel::Type object.
#
# Created to be used with an AttrJson::Model type (AttrJson::Type::Model), but hypothetically
# could be a shim from anything with serialize/deserialize to dump/load instead.
#
# class ValueModel
# include AttrJson::Model
# attr_json :some_string, :string
# end
#
# class SomeModel < ApplicationRecord
# serialize :some_json_column, ValueModel.to_serialize_coder
# end
#
# Note when used with an AttrJson::Model, it will dump/load from a HASH, not a
# string. It assumes it's writing to a Json(b) column that wants/provides hashes,
# not strings.
class SerializationCoderFromType
attr_reader :type
def initialize(type)
@type = type
end
# Dump and load methods to support ActiveRecord Serialization
# too.
def dump(value)
type.serialize(value)
end
# Dump and load methods to support ActiveRecord Serialization
# too. https://api.rubyonrails.org/classes/ActiveRecord/AttributeMethods/Serialization/ClassMethods.html
def load(value)
type.deserialize(value)
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems