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Contents
# frozen_string_literal: true
require "active_model"
module StoreModel
module Types
# Implements ActiveModel::Type::Value type for handling an instance of StoreModel::Model
class OneBase < ActiveModel::Type::Value
attr_reader :model_klass
# Returns type
#
# @return [Symbol]
def type
raise NotImplementedError
end
# Casts +value+ from DB or user to StoreModel::Model instance
#
# @param value [Object] a value to cast
#
# @return StoreModel::Model
def cast_value(_value)
raise NotImplementedError
end
# Determines whether the mutable value has been modified since it was read
#
# @param raw_old_value [Object] old value
# @param new_value [Object] new value
#
# @return [Boolean]
def changed_in_place?(raw_old_value, new_value)
cast_value(raw_old_value) != new_value
end
protected
def raise_cast_error(_value)
raise NotImplementedError
end
def model_instance(_value)
raise NotImplementedError
end
private
# rubocop:disable Style/RescueModifier
def decode_and_initialize(value)
decoded = ActiveSupport::JSON.decode(value) rescue nil
model_instance(decoded) unless decoded.nil?
rescue ActiveModel::UnknownAttributeError => e
handle_unknown_attribute(decoded, e)
end
# rubocop:enable Style/RescueModifier
def handle_unknown_attribute(value, exception)
attribute = exception.attribute.to_sym
value_symbolized = value.symbolize_keys
value_symbolized = value_symbolized[:attributes] if value_symbolized.key?(:attributes)
cast_value(value_symbolized.except(attribute)).tap do |configuration|
configuration.unknown_attributes[attribute.to_s] = value_symbolized[attribute]
end
end
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems