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rails--rails/railties/lib/rails/generators/resource_helpers.rb
2009-11-03 18:22:05 -08:00

73 lines
2.5 KiB
Ruby

require 'rails/generators/active_model'
module Rails
module Generators
# Deal with controller names on scaffold and add some helpers to deal with
# ActiveModel.
#
module ResourceHelpers
mattr_accessor :skip_warn
def self.included(base) #:nodoc:
base.send :attr_reader, :controller_name, :controller_class_name, :controller_file_name,
:controller_class_path, :controller_file_path
base.send :class_option, :force_plural, :type => :boolean, :desc => "Forces the use of a plural ModelName"
end
# Set controller variables on initialization.
#
def initialize(*args) #:nodoc:
super
if name == name.pluralize && !options[:force_plural]
unless ResourceHelpers.skip_warn
say "Plural version of the model detected, using singularized version. Override with --force-plural."
ResourceHelpers.skip_warn = true
end
name.replace name.singularize
assign_names!(self.name)
end
@controller_name = name.pluralize
base_name, @controller_class_path, @controller_file_path, class_nesting, class_nesting_depth = extract_modules(@controller_name)
class_name_without_nesting, @controller_file_name, controller_plural_name = inflect_names(base_name)
@controller_class_name = if class_nesting.empty?
class_name_without_nesting
else
"#{class_nesting}::#{class_name_without_nesting}"
end
end
protected
# Loads the ORM::Generators::ActiveModel class. This class is responsable
# to tell scaffold entities how to generate an specific method for the
# ORM. Check Rails::Generators::ActiveModel for more information.
#
def orm_class
@orm_class ||= begin
# Raise an error if the class_option :orm was not defined.
unless self.class.class_options[:orm]
raise "You need to have :orm as class option to invoke orm_class and orm_instance"
end
begin
"#{options[:orm].to_s.classify}::Generators::ActiveModel".constantize
rescue NameError => e
Rails::Generators::ActiveModel
end
end
end
# Initialize ORM::Generators::ActiveModel to access instance methods.
#
def orm_instance(name=file_name)
@orm_instance ||= @orm_class.new(name)
end
end
end
end