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require 'rails'
require 'rom/rails/inflections'
require 'rom/rails/configuration'
require 'rom/rails/controller_extension'
require 'rom/rails/active_record/configuration'
Spring.after_fork { ROM::Rails::Railtie.disconnect } if defined?(Spring)
module ROM
module Rails
class Railtie < ::Rails::Railtie
COMPONENT_DIRS = %w(relations mappers commands).freeze
MissingGatewayConfigError = Class.new(StandardError)
# Make `ROM::Rails::Configuration` instance available to the user via
# `Rails.application.config` before other initializers run.
config.before_configuration do |_app|
config.rom = Configuration.new
end
initializer 'rom.configure_action_controller' do
ActiveSupport.on_load(:action_controller) do
ActionController::Base.send(:include, ControllerExtension)
ActionController::API.send(:include, ControllerExtension) if defined?(ActionController::API)
end
end
initializer 'rom.adjust_eager_load_paths' do |app|
paths =
auto_registration_paths.inject([]) do |result, root_path|
result.concat(COMPONENT_DIRS.map { |dir| ::Rails.root.join(root_path, dir).to_s })
end
app.config.eager_load_paths -= paths
end
rake_tasks do
load "rom/rails/tasks/db.rake" unless active_record?
end
# Reload ROM-related application code on each request.
config.to_prepare do |_config|
ROM.env = Railtie.create_container
end
console do |_app|
Railtie.configure_console_logger
end
# Behaves like `Railtie#configure` if the given block does not take any
# arguments. Otherwise yields the ROM configuration to the block.
#
# @example
# ROM::Rails::Railtie.configure do |config|
# config.gateways[:default] = [:yaml, 'yaml:///data']
# config.auto_registration_paths += [MyEngine.root]
# end
#
# @api public
def configure(&block)
config.rom = Configuration.new unless config.respond_to?(:rom)
if block.arity == 1
block.call(config.rom)
else
super
end
end
def create_configuration
ROM::Configuration.new(gateways)
end
# @api private
def create_container
configuration = create_configuration
auto_registration_paths.each do |root_path|
configuration.auto_registration(::Rails.root.join(root_path), namespace: false)
end
ROM.container(configuration)
end
# @api private
def gateways
if active_record?
load_active_record_config.each do |name, spec|
config.rom.gateways[name] ||= [:sql, spec[:uri], spec[:options]]
end
end
if config.rom.gateways.empty?
::Rails.logger.warn "It seems that you have not configured any gateways"
config.rom.gateways[:default] = [ :memory, "memory://test" ]
end
config.rom.gateways
end
# Attempt to infer all configured gateways from activerecord
def load_active_record_config
ROM::Rails::ActiveRecord::Configuration.new.call
end
def load_initializer
load "#{root}/config/initializers/rom.rb"
rescue LoadError
# do nothing
end
# @api private
def disconnect
container.disconnect unless container.nil?
end
# @api private
def root
::Rails.root
end
def container
ROM.env
end
def auto_registration_paths
config.rom.auto_registration_paths + [root]
end
# @api private
def active_record?
defined?(::ActiveRecord)
end
# @api private
def std_err_out_logger?
ActiveSupport::Logger.logger_outputs_to?(::Rails.logger, STDERR, STDOUT)
end
# @api private
def configure_console_logger
return if active_record? || std_err_out_logger?
console = ActiveSupport::Logger.new(STDERR)
::Rails.logger.extend ActiveSupport::Logger.broadcast console
end
end
end
end
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