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Contents
require 'ostruct'
require 'active_support/core_ext/string/inflections'
module Lol
# DynamicModel extends OpenStruct adding the following features:
# - nested generation ({a: {}}) results in DynamicModel(a: DynamicModel)
# - parsing of date/time when property name ends with _at or _date and the value is a number
class DynamicModel < OpenStruct
def initialize(hash={})
raise ArgumentError, 'An hash is required as parameter' unless hash.is_a? Hash
@table = {}
@hash_table = {}
hash.each do |k,v|
key = k.to_s.underscore
set_property key, v
new_ostruct_member(key)
end
end
def to_h
@hash_table
end
def as_json opts={}
@table.as_json
end
private
def date_key? key
key.match(/^(.+_)?(at|date)$/)
end
def set_property key, v
if date_key?(key) && v.is_a?(Fixnum)
@table[key.to_sym] = @hash_table[key.to_sym] = value_to_date v
else
@table[key.to_sym] = convert_object v
@hash_table[key.to_sym] = v
end
end
def value_to_date v
Time.at(v / 1000)
end
def convert_object obj
if obj.is_a? Hash
self.class.new obj
elsif obj.respond_to?(:map)
obj.map { |o| convert_object o }
else
obj
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems