1 require 'ruby-debug' and Debugger.start if ENV['USER'] == 'eweaver'
3 class TaggingGenerator < Rails::Generator::NamedBase
4 default_options :skip_migration => false
5 default_options :self_referential => false
6 attr_reader :parent_association_name
7 attr_reader :taggable_models
9 def initialize(runtime_args, runtime_options = {})
10 @parent_association_name = (runtime_args.include?("--self-referential") ? "tagger" : "tag")
11 @taggable_models = runtime_args.reject{|opt| opt =~ /^--/}.map do |taggable|
12 ":" + taggable.underscore.pluralize
14 @taggable_models += [":tags"] if runtime_args.include?("--self-referential")
15 @taggable_models.uniq!
17 verify @taggable_models
19 runtime_args.unshift("placeholder")
24 puts "** Warning: only one taggable model specified; tests may not run properly." if models.size < 2
25 models.each do |model|
26 model = model[1..-1].classify
27 next if model == "Tag" # don't load ourselves when --self-referential is used
28 self.class.const_get(model) rescue puts "** Error: model #{model[1..-1].classify} could not be loaded." or exit
33 # add the extension require in environment.rb
34 phrase = "require 'tagging_extensions'"
35 filename = "#{RAILS_ROOT}/config/environment.rb"
36 unless (open(filename) do |file|
37 file.grep(/#{Regexp.escape phrase}/).any?
39 open(filename, 'a+') do |file|
40 file.puts "\n" + phrase + "\n"
47 m.class_collisions class_path, class_name, "#{class_name}Test"
49 m.directory File.join('app/models', class_path)
50 m.directory File.join('test/unit', class_path)
51 m.directory File.join('test/fixtures', class_path)
52 m.directory File.join('test/fixtures', class_path)
53 m.directory File.join('lib')
55 m.template 'tag.rb', File.join('app/models', class_path, "tag.rb")
56 m.template 'tag_test.rb', File.join('test/unit', class_path, "tag_test.rb")
57 m.template 'tags.yml', File.join('test/fixtures', class_path, "tags.yml")
59 m.template 'tagging.rb', File.join('app/models', class_path, "tagging.rb")
60 m.template 'tagging_test.rb', File.join('test/unit', class_path, "tagging_test.rb")
61 m.template 'taggings.yml', File.join('test/fixtures', class_path, "taggings.yml")
63 m.template 'tagging_extensions.rb', File.join('lib', 'tagging_extensions.rb')
65 unless options[:skip_migration]
66 m.migration_template 'migration.rb', 'db/migrate',
67 :migration_file_name => "create_tags_and_taggings"
75 "Usage: #{$0} generate tagging [TaggableModelA TaggableModelB ...]"
80 opt.separator 'Options:'
81 opt.on("--skip-migration",
82 "Don't generate a migration file for this model") { |v| options[:skip_migration] = v }
83 opt.on("--self-referential",
84 "Allow tags to tag themselves.") { |v| options[:self_referential] = v }
87 # Useful for generating tests/fixtures
89 taggable_models[0][1..-1].classify
93 taggable_models[1][1..-1].classify rescue model_one