add color model, have it and species descend from PetAttribute

app/models/color.rb

@@ -0,0 +1,3 @@
+class Color < PetAttribute
+  fetch_objects!
+end

app/models/pet_attribute.rb

@@ -0,0 +1,31 @@
+class PetAttribute
+  attr_accessor :id, :name
+  
+  def self.all
+    @objects
+  end
+  
+  def self.find(id)
+    @objects[id-1]
+  end
+  
+  def self.find_by_name(name)
+    @objects_by_name[name.downcase]
+  end
+  
+  private
+  
+  def self.fetch_objects!
+    @objects = []
+    @objects_by_name = {}
+    
+    filename = "#{to_s.downcase.pluralize}.txt"
+    
+    File.open(Rails.root.join('config', filename)).each do |line|
+      name = line.chomp.downcase
+      @objects << @objects_by_name[name] = species = new
+      species.id = @objects.size
+      species.name = name
+    end
+  end
+end

app/models/species.rb

@@ -1,16 +1,5 @@
-require 'yaml'
-
-class Species
-  attr_accessor :id, :name
-  
-  @objects = []
-  @objects_by_name = {}
-  File.open(Rails.root.join('config', 'species.txt')).each do |line|
-    name = line.chomp.downcase
-    @objects << @objects_by_name[name] = species = Species.new
-    species.id = @objects.size
-    species.name = name
-  end
+class Species < PetAttribute
+  fetch_objects!
   
   StandardColors = %w(blue green yellow red)
   StandardHashes = YAML::load_file(Rails.root.join('config', 'standard_type_hashes.yml'))
@@ -18,16 +7,4 @@ class Species
   def hash_for_color(color)
     StandardHashes[name][color]
   end
-  
-  def self.all
-    @objects
-  end
-  
-  def self.find(id)
-    @objects[id-1]
-  end
-  
-  def self.find_by_name(name)
-    @objects_by_name[name.downcase]
-  end
 end

config/colors.txt

@@ -0,0 +1,88 @@
+Alien
+Apple
+Asparagus
+Aubergine
+Avocado
+Baby
+Biscuit
+Blue
+Blueberry
+Brown
+Camouflage
+Carrot
+Checkered
+Chocolate
+Chokato
+Christmas
+Clay
+Cloud
+Coconut
+Custard
+Darigan
+Desert
+Disco
+Durian
+Electric
+Faerie
+Fire
+Garlic
+Ghost
+Glowing
+Gold
+Gooseberry
+Grape
+Green
+Grey
+Halloween
+Ice
+Invisible
+Island
+Jelly
+Lemon
+Lime
+Mallow
+Maraquan
+Msp
+Mutant
+Orange
+Pea
+Peach
+Pear
+Pepper
+Pineapple
+Pink
+Pirate
+Plum
+Plushie
+Purple
+Quigukiboy
+Quigukigirl
+Rainbow
+Red
+Robot
+Royalboy
+Royalgirl
+Shadow
+Silver
+Sketch
+Skunk
+Snot
+Snow
+Speckled
+Split
+Sponge
+Spotted
+Starry
+Strawberry
+Striped
+Thornberry
+Tomato
+Tyrannian
+Usukiboy
+Usukigirl
+White
+Yellow
+Zombie
+Onion
+Magma
+Relic

spec/models/color_spec.rb

@@ -0,0 +1,18 @@
+require 'spec_helper'
+
+describe Color do
+  specify "should find by id, report name" do
+    Color.find(1).name.should == 'alien'
+    Color.find(2).name.should == 'apple'
+  end
+  
+  specify "should find by name, report id" do
+    Color.find_by_name('alien').id.should == 1
+    Color.find_by_name('apple').id.should == 2
+  end
+  
+  specify "name should be case-insensitive" do
+    Color.find_by_name('Alien').id.should == 1
+    Color.find_by_name('alien').id.should == 1
+  end
+end