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module Rails
module Generators
# Deal with controller names on scaffold and add some helpers to deal with
# ActiveModel.
#
module ResourceHelpers
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]
say "Plural version of the model detected, using singularized version. Override with --force-plural."
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
active_model = "#{options[:orm].to_s.classify}::Generators::ActiveModel"
# If the orm was not loaded, try to load it at "generators/orm",
# for example "generators/active_record" or "generators/sequel".
begin
klass = active_model.constantize
rescue NameError
require "rails/generators/#{options[:orm]}"
end
# Try once again after loading the file with success.
klass ||= active_model.constantize
rescue Exception => e
raise Error, "Could not load #{active_model}, skipping controller. Error: #{e.message}."
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
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