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Contents
module EasyML
module Concerns
module Configurable
extend ActiveSupport::Concern
included do
is_model = ancestors.include?(ActiveRecord::Base)
self.filter_attributes += [:configuration] if is_model
class_attribute :configuration_attributes, instance_writer: false, default: []
after_initialize :read_from_configuration if is_model
before_save :store_in_configuration if is_model
end
class_methods do
def add_configuration_attributes(*attrs)
self.configuration_attributes += attrs
self.configuration_attributes = self.configuration_attributes.uniq
# Define attr_accessor for each configuration attribute
attrs.each do |attr|
attr_accessor attr unless method_defined?(attr)
end
end
end
private
def read_from_configuration
return unless configuration
self.class.configuration_attributes.each do |attr|
next unless configuration.key?(attr.to_s)
instance_variable_set("@#{attr}", configuration[attr.to_s])
end
end
def store_in_configuration
serialized = self.class.configuration_attributes.each_with_object({}) do |attr, hash|
value = public_send(attr)
hash[attr] = serialize_value(value)
end
self.configuration = (configuration || {}).merge(serialized)
end
def serialize_value(value)
return value if basic_type?(value)
return value.to_h if value.respond_to?(:to_h)
return value.as_json if value.respond_to?(:as_json)
value.to_s
end
def basic_type?(value)
[String, Symbol, Integer, Float, TrueClass, FalseClass, NilClass, Hash, Array].any? { |type| value.is_a?(type) }
end
end
end
end
Version data entries
92 entries across 92 versions & 1 rubygems