gistfile1.txt

Single Table Inheritance
READ
"(id = 4b44589b7d209c282d000001)"
READ
"(id = 4b44589b7d209c282d000002)"
READ
"(id = 4b44589b7d209c282d000003)"
READ
"(id = 4b44589b7d209c282d000004)"
- should have a type property that reflects the class
- should parent should return an instance of the child when type is explicitly specified
READ
"(type = \"Person\" AND type IN [\"Person\", \"Male\", \"Father\", \"Son\"])"
[#<Person @id="4b44589b7d209c282d000001" @name=nil @job=nil @type=Person>, #<Person @id="4b44589b7d209c282d000005" @name=nil @job=nil @type=Person>]
(type = "Father" AND type IN ["Father"])
true
READ
"(type IN [\"Father\"])"
- should discriminate types during reads (FAILED - 1)

1)
'Single Table Inheritance should discriminate types during reads' FAILED
expected: [#<Father @id="4b44589c7d209c282d00000a" @name=nil @job=nil @type=Father>, #<Father @id="4b44589c7d209c282d00000b" @name=nil @job=nil @type=Father>],
     got: [#<Father @id="4b44589b7d209c282d000003" @name=nil @job=nil @type=Father>, #<Father @id="4b44589c7d209c282d000007" @name=nil @job=nil @type=Father>, #<Father @id="4b44589c7d209c282d00000a" @name=nil @job=nil @type=Father>, #<Father @id="4b44589c7d209c282d00000b" @name=nil @job=nil @type=Father>] (using ==)
./spec/sti_spec.rb:48:

Finished in 0.277598 seconds

module DataMapper
  module Types
    class Discriminator < DataMapper::Type
      primitive String
      def self.load(value, property)
        typecast(value, property)
      end

      def self.dump(value, property)
        value.name
      end

      def self.typecast(value, property)
        Object.const_get(Extlib::Inflection.classify(value)) if value
      end
    end
  end
end