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Contents
module RubyPsigate
# In your class, you can define the instance variables you want to wrap in a hash output
#
# Usage:
#
# hashable :billing, [:name, :address, :city, :state, :country, :zipcode]
#
# What this will do is create a hash like this when you call the class' instance #to_hash(:billing)
# { :name => "Bob", :address => "1234 West St", :city => "North York", :state => "NY", :country => "USA", zipcode => "12345"}
#
# If you don't specify a "name", you can simply call #to_hash:
#
# hashable [:name, :address, :city, :state, :country, :zipcode]
# instance#to_hash will yield the same output as above
#
module HashVariables
def self.included(klass)
klass.extend ClassMethods
klass.send(:include, InstanceMethods)
end
module ClassMethods
def hashable(*args)
@hashable_attributes ||= {}
if args[0].is_a?(Symbol) && args[1].is_a?(Array)
@hashable_attributes[args[0]] = args[1]
elsif args[0].is_a?(Array)
@hashable_attributes[:default] = args[0]
else
raise ArgumentError
end
end
def hashable_attributes
@hashable_attributes
end
end
module InstanceMethods
def to_hash(name=nil)
return_hash = {}
if name.nil?
attributes = self.class.hashable_attributes[:default]
else
attributes = self.class.hashable_attributes[name.to_sym]
end
attributes.each do |a|
key = "#{a}"
value = self.send(a.downcase)
return_hash[key.to_sym] = value
end
return_hash
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems