require 'active_support/core_ext/module/introspection' require 'rails/generators/base' require 'rails/generators/generated_attribute' module Rails module Generators class NamedBase < Base argument :name, :type => :string class_option :skip_namespace, :type => :boolean, :default => false, :desc => "Skip namespace (affects only isolated applications)" class_option :old_style_hash, :type => :boolean, :default => false, :desc => "Force using old style hash (:foo => 'bar') on Ruby >= 1.9" def initialize(args, *options) #:nodoc: @inside_template = nil # Unfreeze name in case it's given as a frozen string args[0] = args[0].dup if args[0].is_a?(String) && args[0].frozen? super assign_names!(self.name) parse_attributes! if respond_to?(:attributes) end no_tasks do def template(source, *args, &block) inside_template do super end end end protected attr_reader :file_name alias :singular_name :file_name # Wrap block with namespace of current application # if namespace exists and is not skipped def module_namespacing(&block) content = capture(&block) content = wrap_with_namespace(content) if namespaced? concat(content) end def indent(content, multiplier = 2) spaces = " " * multiplier content = content.each_line.map {|line| "#{spaces}#{line}" }.join end def wrap_with_namespace(content) content = indent(content).chomp "module #{namespace.name}\n#{content}\nend\n" end def inside_template @inside_template = true yield ensure @inside_template = false end def inside_template? @inside_template end def namespace @namespace ||= if defined?(Rails) && Rails.application Rails.application.class.parents.detect { |n| n.respond_to?(:_railtie) } end end def namespaced? !options[:skip_namespace] && namespace end def file_path @file_path ||= (class_path + [file_name]).join('/') end def class_path inside_template? || !namespaced? ? regular_class_path : namespaced_class_path end def regular_class_path @class_path end def namespaced_class_path @namespaced_class_path ||= begin namespace_path = namespace.name.split("::").map {|m| m.underscore } namespace_path + @class_path end end def class_name (class_path + [file_name]).map!{ |m| m.camelize }.join('::') end def human_name @human_name ||= singular_name.humanize end def plural_name @plural_name ||= singular_name.pluralize end def i18n_scope @i18n_scope ||= file_path.gsub('/', '.') end def table_name @table_name ||= begin base = pluralize_table_names? ? plural_name : singular_name (class_path + [base]).join('_') end end def uncountable? singular_name == plural_name end def index_helper uncountable? ? "#{plural_table_name}_index" : plural_table_name end def singular_table_name @singular_table_name ||= (pluralize_table_names? ? table_name.singularize : table_name) end def plural_table_name @plural_table_name ||= (pluralize_table_names? ? table_name : table_name.pluralize) end def plural_file_name @plural_file_name ||= file_name.pluralize end def route_url @route_url ||= class_path.collect{|dname| "/" + dname }.join('') + "/" + plural_file_name end # Tries to retrieve the application name or simple return application. def application_name if defined?(Rails) && Rails.application Rails.application.class.name.split('::').first.underscore else "application" end end def assign_names!(name) #:nodoc: @class_path = name.include?('/') ? name.split('/') : name.split('::') @class_path.map! { |m| m.underscore } @file_name = @class_path.pop end # Convert attributes array into GeneratedAttribute objects. def parse_attributes! #:nodoc: self.attributes = (attributes || []).map do |key_value| name, type = key_value.split(':') Rails::Generators::GeneratedAttribute.new(name, type) end end def pluralize_table_names? !defined?(ActiveRecord::Base) || ActiveRecord::Base.pluralize_table_names end # Add a class collisions name to be checked on class initialization. You # can supply a hash with a :prefix or :suffix to be tested. # # ==== Examples # # check_class_collision :suffix => "Observer" # # If the generator is invoked with class name Admin, it will check for # the presence of "AdminObserver". # def self.check_class_collision(options={}) define_method :check_class_collision do name = if self.respond_to?(:controller_class_name) # for ScaffoldBase controller_class_name else class_name end class_collisions "#{options[:prefix]}#{name}#{options[:suffix]}" end end # Returns Ruby 1.9 style key-value pair if current code is running on # Ruby 1.9.x. Returns the old-style (with hash rocket) otherwise. def key_value(key, value) if options[:old_style_hash] || RUBY_VERSION < '1.9' ":#{key} => #{value}" else "#{key}: #{value}" end end end end end