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Contents
module ActiveRecord
class Base
def self.reflect_on_all_aggregations
base_class.instance_eval { @aggregations ||= [] }
end
def self.reflect_on_aggregation(attribute)
reflect_on_all_aggregations.detect { |aggregation| aggregation.attribute == attribute }
end
end
module Aggregations
class AggregationReflection
attr_reader :klass_name
attr_reader :attribute
attr_reader :mapped_attributes
attr_reader :constructor
def construct(args)
end
def initialize(owner_class, macro, name, options = {})
owner_class.reflect_on_all_aggregations << self
@owner_class = owner_class
@constructor = options[:constructor] || :new
@klass_name = options[:class_name] || name.camelize
@attribute = name
if options[:mapping].respond_to? :collect
@mapped_attributes = options[:mapping].collect &:last
else
ReactiveRecord::Base.log("improper aggregate definition #{@owner_class}, :#{name}, class_name: #{@klass_name} - missing mapping", :error)
@mapped_attributes = []
end
end
def klass
@klass ||= Object.const_get(@klass_name)
end
def serialize(object)
if object.nil?
object # return dummy value if that is what we got
else
@mapped_attributes.collect { |attr| object.send(attr) }
end
end
def deserialize(array)
if array.nil?
array # return dummy value if that is what we got
elsif @constructor.respond_to?(:call)
@constructor.call(*array)
else
klass.send(@constructor, *array)
end
end
end
end
end
Version data entries
30 entries across 30 versions & 2 rubygems