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Contents
require 'active_support/concern'
module Ardm
module ActiveRecord
module Inheritance
extend ActiveSupport::Concern
included do
# ActiveRecord would prefer that you not use the column "type"
# for anything other than single table inheritance.
# The solution is to point ActiveRecord elsewhere.
unless respond_to?(:inheritance_column=)
class_attribute :inheritance_column
end
self.inheritance_column = "override-active-record-default-sti-column-type"
end
module ClassMethods
def new(attrs={}, *a, &b)
type = attrs && attrs.stringify_keys[inheritance_column.to_s]
if type && type != name && type != self
#puts "STI found for #{type} #{self}"
con = type.is_a?(Class) ? type : type.constantize
if con < self
con.new(attrs, *a, &b)
else
raise "Tried to create subclass from #{type} (from key #{inheritance_column}) that is not a subclass of #{name}."
end
else
#puts "No STI found for #{self} (#{attrs.inspect})"
super
end
end
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems