set_load_path:添加config里的一些路徑到$LOAD_PATH并且uniq
initializer :set_load_path, before: :bootstrap_hook do
_all_load_paths.reverse_each do |path|
$LOAD_PATH.unshift(path) if File.directory?(path)
end
$LOAD_PATH.uniq!
end
設(shè)置好自動(dòng)加載的路徑和自動(dòng)加載一次的路徑,并且freeze防止被錯(cuò)誤修改.
initializer :set_autoload_paths, before: :bootstrap_hook do
ActiveSupport::Dependencies.autoload_paths.unshift(*_all_autoload_paths)
ActiveSupport::Dependencies.autoload_once_paths.unshift(*_all_autoload_once_paths)
# Freeze so future modifications will fail rather than do nothing mysteriously
config.autoload_paths.freeze
config.eager_load_paths.freeze
config.autoload_once_paths.freeze
end
add_routing_paths: 設(shè)置routes文件的路徑
initializer :add_routing_paths do |app|
routing_paths = paths["config/routes.rb"].existent
if routes? || routing_paths.any?
app.routes_reloader.paths.unshift(*routing_paths)
app.routes_reloader.route_sets << routes
end
end
add_locales:設(shè)置好i18n的路徑
initializer :add_locales do
config.i18n.railties_load_path << paths["config/locales"]
end
add_view_paths:設(shè)置好view文件的path
initializer :add_view_paths do
views = paths["app/views"].existent
unless views.empty?
ActiveSupport.on_load(:action_controller) { prepend_view_path(views) if respond_to?(:prepend_view_path) }
ActiveSupport.on_load(:action_mailer) { prepend_view_path(views) }
end
end
load_environment_config: 設(shè)置好環(huán)境配置文件的路徑
initializer :load_environment_config, before: :load_environment_hook, group: :all do
paths["config/environments"].existent.each do |environment|
require environment
end
end
prepend_helpers_path:設(shè)置好幫助文件的路徑
initializer :prepend_helpers_path do |app|
if !isolated? || (app == self)
app.config.helpers_paths.unshift(*paths["app/helpers"].existent)
end
end
load_config_initializers: 加載app的initializers文件
initializer :load_config_initializers do
config.paths["config/initializers"].existent.sort.each do |initializer|
load_config_initializer(initializer)
end
end
engines_blank_point：額外的一些設(shè)置
initializer :engines_blank_point do
# We need this initializer so all extra initializers added in engines are
# consistently executed after all the initializers above across all engines.
end
