Class: ActiveAdmin::Application

Inherits:
Object
  • Object
show all
Includes:
AssetRegistration, Settings, Settings::Inheritance
Defined in:
lib/active_admin/application.rb

Constant Summary collapse

BeforeLoadEvent =

Event that gets triggered on load of Active Admin

'active_admin.application.before_load'.freeze
AfterLoadEvent = 
'active_admin.application.after_load'.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from AssetRegistration

#clear_javascripts!, #clear_stylesheets!, #javascripts, #register_javascript, #register_stylesheet, #stylesheets

Methods included from Settings

#read_default_setting

Constructor Details

#initialize ⇒ Application

Returns a new instance of Application.



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# File 'lib/active_admin/application.rb', line 19

def initialize
  @namespaces = {}
end

Instance Attribute Details

#namespaces ⇒ Object (readonly)

Returns the value of attribute namespaces.



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# File 'lib/active_admin/application.rb', line 18

def namespaces
  @namespaces
end

Instance Method Details

#files ⇒ Object

Returns ALL the files to be loaded



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# File 'lib/active_admin/application.rb', line 185

def files
  load_paths.flatten.compact.uniq.map{ |path| Dir["#{path}/**/*.rb"] }.flatten
end

#load(file) ⇒ Object 



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# File 'lib/active_admin/application.rb', line 178

def load(file)
  super
rescue ActiveRecord::StatementInvalid => exception
  raise DatabaseHitDuringLoad.new exception
end

#load! ⇒ Object

Loads all ruby files that are within the load_paths setting. To reload everything simply call ‘ActiveAdmin.unload!`



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# File 'lib/active_admin/application.rb', line 168

def load!
  unless loaded?
    ActiveAdmin::Event.dispatch BeforeLoadEvent, self # before_load hook
    files.each{ |file| load file }                    # load files
    namespace(default_namespace)                      # init AA resources
    ActiveAdmin::Event.dispatch AfterLoadEvent, self  # after_load hook
    @@loaded = true
  end
end

#loaded? ⇒ Boolean

Whether all configuration files have been loaded

Returns:

  • (Boolean) 


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# File 'lib/active_admin/application.rb', line 155

def loaded?
  @@loaded ||= false
end

#namespace(name) {|namespace| ... } ⇒ Object

Creates a namespace for the given name

Yields the namespace if a block is given

Yields:



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# File 'lib/active_admin/application.rb', line 128

def namespace(name)
  name ||= :root

  if namespaces[name]
    namespace = namespaces[name]
  else
    namespace = namespaces[name] = Namespace.new(self, name)
    ActiveAdmin::Event.dispatch ActiveAdmin::Namespace::RegisterEvent, namespace
  end

  yield(namespace) if block_given?

  namespace
end

#prepare! ⇒ Object

Runs after the app’s AA initializer



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# File 'lib/active_admin/application.rb', line 112

def prepare!
  remove_active_admin_load_paths_from_rails_autoload_and_eager_load
  attach_reloader
end

#register(resource, options = {}, &block) ⇒ Object

Registers a brand new configuration for the given resource.



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# File 'lib/active_admin/application.rb', line 118

def register(resource, options = {}, &block)
  ns = options.fetch(:namespace){ default_namespace }
  namespace(ns).register resource, options, &block
end

#register_page(name, options = {}, &block) ⇒ Object

Register a page

@&block The registration block.

Parameters:

  • name (String) —

    The page name



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# File 'lib/active_admin/application.rb', line 149

def register_page(name, options = {}, &block)
  ns = options.fetch(:namespace){ default_namespace }
  namespace(ns).register_page name, options, &block
end

#router ⇒ Object 



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# File 'lib/active_admin/application.rb', line 189

def router
  @router ||= Router.new(self)
end

#routes(rails_router) ⇒ Object

One-liner called by user’s config/routes.rb file



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# File 'lib/active_admin/application.rb', line 194

def routes(rails_router)
  load!
  router.apply(rails_router)
end

#setup! ⇒ Object

Runs before the app’s AA initializer



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# File 'lib/active_admin/application.rb', line 107

def setup!
  register_default_assets
end

#unload! ⇒ Object

Removes all defined controllers from memory. Useful in development, where they are reloaded on each request.



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# File 'lib/active_admin/application.rb', line 161

def unload!
  namespaces.values.each &:unload!
  @@loaded = false
end