Initial commit

.document

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+lib/**/*.rb
+bin/*
+- 
+features/**/*.feature
+LICENSE.txt

.gitignore

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+coverage
+rdoc
+doc
+.yardoc
+.bundle
+pkg
+Gemfile.lock

.rspec

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+--color
+--format documentation

Gemfile

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+source :rubygems
+
+gem "activesupport", ">= 3.0.0"
+gem "activemodel", ">= 3.0.0"
+gem "i18n"
+
+group :development, :test do
+  gem "activerecord", ">= 3.0.0"
+  gem "bundler"
+  gem "jeweler"
+  gem "rspec", ">= 2.5.0"
+  gem "watchr"
+end

LICENSE.txt

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+Copyright (c) 2011 Chris Baker
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.rdoc

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+= attr_enumerator
+
+Description goes here.
+
+== Contributing to attr_enumerator
+
+* Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet
+* Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it
+* Fork the project
+* Start a feature/bugfix branch
+* Commit and push until you are happy with your contribution
+* Make sure to add tests for it. This is important so I don't break it in a future version unintentionally.
+* Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.
+
+== Copyright
+
+Copyright (c) 2011 Chris Baker. See LICENSE.txt for
+further details.
+

Rakefile

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+require 'rubygems'
+require 'bundler'
+begin
+  Bundler.setup(:default, :development)
+rescue Bundler::BundlerError => e
+  $stderr.puts e.message
+  $stderr.puts "Run `bundle install` to install missing gems"
+  exit e.status_code
+end
+require 'rake'
+
+require 'jeweler'
+Jeweler::Tasks.new do |gem|
+  # gem is a Gem::Specification... see http://docs.rubygems.org/read/chapter/20 for more options
+  gem.name = "attr_enumerator"
+  gem.homepage = "http://github.com/chrisb87/attr_enumerator"
+  gem.license = "MIT"
+  gem.summary = %Q{Enumerated attributes for ActiveModel}
+  gem.description = %Q{Enumerated attributes for ActiveModel}
+  gem.email = "[email protected]"
+  gem.authors = ["Chris Baker"]
+end
+Jeweler::RubygemsDotOrgTasks.new
+
+require 'rspec/core'
+require 'rspec/core/rake_task'
+RSpec::Core::RakeTask.new(:spec) do |spec|
+  spec.pattern = FileList['spec/**/*_spec.rb']
+end
+
+RSpec::Core::RakeTask.new(:rcov) do |spec|
+  spec.pattern = 'spec/**/*_spec.rb'
+  spec.rcov = true
+end
+
+task :default => :spec
+
+require 'rake/rdoctask'
+Rake::RDocTask.new do |rdoc|
+  version = File.exist?('VERSION') ? File.read('VERSION') : ""
+
+  rdoc.rdoc_dir = 'rdoc'
+  rdoc.title = "attr_enumerator #{version}"
+  rdoc.rdoc_files.include('README*')
+  rdoc.rdoc_files.include('lib/**/*.rb')
+end

VERSION

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+0.1.0

attr_enumerator.gemspec

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+# Generated by jeweler
+# DO NOT EDIT THIS FILE DIRECTLY
+# Instead, edit Jeweler::Tasks in Rakefile, and run 'rake gemspec'
+# -*- encoding: utf-8 -*-
+
+Gem::Specification.new do |s|
+  s.name = %q{attr_enumerator}
+  s.version = "0.1.0"
+
+  s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
+  s.authors = ["Chris Baker"]
+  s.date = %q{2011-03-15}
+  s.description = %q{Enumerated attributes for ActiveModel}
+  s.email = %q{[email protected]}
+  s.extra_rdoc_files = [
+    "LICENSE.txt",
+    "README.rdoc"
+  ]
+  s.files = [
+    ".document",
+    ".rspec",
+    "Gemfile",
+    "LICENSE.txt",
+    "README.rdoc",
+    "Rakefile",
+    "VERSION",
+    "attr_enumerator.gemspec",
+    "lib/attr_enumerator.rb",
+    "spec/attr_enumerator_spec.rb",
+    "spec/spec_helper.rb",
+    "watchr.rb"
+  ]
+  s.homepage = %q{http://github.com/chrisb87/attr_enumerator}
+  s.licenses = ["MIT"]
+  s.require_paths = ["lib"]
+  s.rubygems_version = %q{1.3.7}
+  s.summary = %q{Enumerated attributes for ActiveModel}
+  s.test_files = [
+    "spec/attr_enumerator_spec.rb",
+    "spec/spec_helper.rb"
+  ]
+
+  if s.respond_to? :specification_version then
+    current_version = Gem::Specification::CURRENT_SPECIFICATION_VERSION
+    s.specification_version = 3
+
+    if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
+      s.add_runtime_dependency(%q<activesupport>, [">= 3.0.0"])
+      s.add_runtime_dependency(%q<activemodel>, [">= 3.0.0"])
+      s.add_runtime_dependency(%q<i18n>, [">= 0"])
+      s.add_development_dependency(%q<activerecord>, [">= 3.0.0"])
+      s.add_development_dependency(%q<bundler>, [">= 0"])
+      s.add_development_dependency(%q<jeweler>, [">= 0"])
+      s.add_development_dependency(%q<rspec>, [">= 2.5.0"])
+      s.add_development_dependency(%q<watchr>, [">= 0"])
+    else
+      s.add_dependency(%q<activesupport>, [">= 3.0.0"])
+      s.add_dependency(%q<activemodel>, [">= 3.0.0"])
+      s.add_dependency(%q<i18n>, [">= 0"])
+      s.add_dependency(%q<activerecord>, [">= 3.0.0"])
+      s.add_dependency(%q<bundler>, [">= 0"])
+      s.add_dependency(%q<jeweler>, [">= 0"])
+      s.add_dependency(%q<rspec>, [">= 2.5.0"])
+      s.add_dependency(%q<watchr>, [">= 0"])
+    end
+  else
+    s.add_dependency(%q<activesupport>, [">= 3.0.0"])
+    s.add_dependency(%q<activemodel>, [">= 3.0.0"])
+    s.add_dependency(%q<i18n>, [">= 0"])
+    s.add_dependency(%q<activerecord>, [">= 3.0.0"])
+    s.add_dependency(%q<bundler>, [">= 0"])
+    s.add_dependency(%q<jeweler>, [">= 0"])
+    s.add_dependency(%q<rspec>, [">= 2.5.0"])
+    s.add_dependency(%q<watchr>, [">= 0"])
+  end
+end
+

lib/attr_enumerator.rb

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+require 'active_model'
+require 'active_support'
+
+module AttrEnumerator
+  extend ActiveSupport::Concern
+
+  DEFAULT_OPTIONS = {
+    :constant => true, 
+    :prefix => '', 
+    :message => :invalid
+  }
+
+  module ClassMethods
+    def attr_enumerator(field, enumerators, opts={})
+      options = opts.reverse_merge(DEFAULT_OPTIONS)
+
+      unless !(constant = options.delete(:constant))
+        constant = field.to_s.pluralize.upcase if constant == true
+        const_set(constant.to_s, enumerators).freeze unless const_defined?(constant)
+      end
+
+      prefix = options.delete(:prefix)
+      enumerators.each do |enumerator|
+        define_method(prefix + enumerator.underscore.parameterize('_') + '?') do
+          self.send(field) == enumerator
+        end
+      end
+
+      validates_inclusion_of field, options.merge({ :in => enumerators })
+    end
+  end
+end
+
+ActiveRecord::Base.class_eval { include AttrEnumerator } if defined? ActiveRecord

spec/attr_enumerator_spec.rb

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+require File.expand_path(File.dirname(__FILE__) + '/spec_helper')
+require 'ostruct'
+
+describe "AttrEnumerator" do
+  before(:each) do
+    class TestModel < OpenStruct
+      include ActiveModel::Validations
+      include AttrEnumerator
+    end
+  end
+
+  after(:each) do
+    Object.send(:remove_const, :TestModel)
+  end
+
+  def instance(fields={})
+    @instance ||= TestModel.new(fields)
+  end
+
+  describe "enum constant" do
+    it "should create a constant with possible values" do
+      TestModel.attr_enumerator :color, ['red', 'blue']
+      TestModel::COLORS.should == ['red', 'blue']
+    end
+
+    it "should allow for a custom constant name" do
+      TestModel.attr_enumerator :color, ['red', 'blue'], :constant => :POSSIBLE_COLORS
+      TestModel::POSSIBLE_COLORS.should == ['red', 'blue']
+    end
+
+    it "should allow for not generating the constant" do
+      TestModel.attr_enumerator :color, ['red', 'blue'], :constant => false
+      TestModel.constants.should_not include('COLORS')
+    end
+
+    it "should define the standard constant when using option :constant => true" do
+      TestModel.attr_enumerator :color, ['red', 'blue'], :constant => true
+      TestModel::COLORS.should == ['red', 'blue']
+    end
+  end
+
+  describe "convinience methods" do
+    it "should create convinience methods for each enum type" do
+      TestModel.attr_enumerator :color, ['red', 'blue']
+      instance.color = 'red'
+
+      instance.should respond_to :red?
+      instance.red?.should be_true
+
+      instance.should respond_to :blue?
+      instance.blue?.should be_false
+    end
+
+    it "should allow for prefixing the convinience methods" do
+      TestModel.attr_enumerator :color, ['red', 'blue'], :prefix => 'colored_'
+      instance.color = 'red'
+
+      instance.should respond_to :colored_red?
+      instance.colored_red?.should be_true
+
+      instance.should respond_to :colored_blue?
+      instance.colored_blue?.should be_false
+    end
+
+    it "should handle strangely formated choices" do
+      TestModel.attr_enumerator :choices, \
+      ['choice one', 'choice-two', 'CHOICE THREE', 'ChoiceFour', 'choice%five', 'choice☺six', 'choice_seven.']
+
+      instance.should respond_to :choice_one?
+      instance.should respond_to :choice_two?
+      instance.should respond_to :choice_three?
+      instance.should respond_to :choice_four?
+      instance.should respond_to :choice_five?
+      instance.should respond_to :choice_six?
+      instance.should respond_to :choice_seven?
+    end
+  end
+
+  describe "validation" do
+    it "should have a default message" do
+      TestModel.attr_enumerator :color, ['red', 'blue']
+      instance.should_not be_valid
+      instance.errors.should == {:color => ['is invalid']}
+    end
+
+    it "should allow for a custom message" do
+      TestModel.attr_enumerator :color, ['red', 'blue'], :message => 'custom message'
+      instance.should_not be_valid
+      instance.errors.should == {:color => ['custom message']}
+    end
+
+    it "should handle allow_blank" do
+      TestModel.attr_enumerator :color, ['red', 'blue'], :allow_blank => true
+      instance.color = ''
+      instance.should be_valid
+    end
+
+    it "should handle allow_nil" do
+      TestModel.attr_enumerator :color, ['red', 'blue'], :allow_nil => true
+      instance.color = nil
+      instance.should be_valid
+    end
+  end
+
+  describe "ActiveRecord" do
+    it "should respond to attr_enumerator" do
+      ActiveRecord::Base.should respond_to :attr_enumerator
+    end
+  end
+end

spec/spec_helper.rb

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+$LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
+$LOAD_PATH.unshift(File.dirname(__FILE__))
+require 'rspec'
+require 'active_record'
+require 'attr_enumerator'
+
+# Requires supporting files with custom matchers and macros, etc,
+# in ./support/ and its subdirectories.
+Dir["#{File.dirname(__FILE__)}/support/**/*.rb"].each {|f| require f}
+
+RSpec.configure do |config|
+
+end

watchr.rb

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+def run(cmd)
+  full_command = "bundle exec rspec #{cmd}"
+  puts(full_command)
+  system(full_command)
+end
+
+def run_all
+  run("spec")
+end
+
+watch( '^lib/(.*)\.rb'         ) { |m| run("spec/%s_spec.rb" % m[1]) }
+watch( '^spec/spec_helper\.rb' ) { run_all }
+watch( '^spec.*/.*_spec\.rb'   ) { |m| run(m[0]) }