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Contents
module ExpressAdmin
# Provide menus for Express Admin addon engines.
#
# To use:
#
# 1) include ExpressAdmin::Menu::Loader in your engine.rb
# 2) add a config/menu.yml defining the menu structure
#
# Example:
#
# title: 'Blog'
# path: 'express_blog.admin_blog_posts_path'
# items:
# -
# title: 'Posts'
# path: 'express_blog.admin_blog_posts_path'
# -
# title: 'Categories'
# path: 'express_blog.admin_blog_categories_path'
module Menu
# Return the top level MenuItem for the addon or defined in the supplied path.
#
# Accepts an addon_name such as :express_admin or a path to a yaml file
# containing a menu definition.
def self.[](addon_name)
@menus ||= {}
@menus[addon_name.to_sym] ||= begin
menu_yml_path =
if addon = Gem.loaded_specs[addon_name]
File.join(addon.full_gem_path, 'config', 'menu.yml')
else
File.join(Rails.root, 'config', 'menu.yml')
end
from(menu_yml_path)
end
end
def self.from(yaml_path)
raise "unable to locate #{yaml_path}" unless File.exists?(yaml_path)
MenuItem.new YAML.load_file(yaml_path).with_indifferent_access
end
class MenuItem
attr :title, :path, :position, :items
def initialize(hash)
@title = hash[:title]
@path = hash[:path]
@position = hash[:position] || 99
@items = (hash[:items]||[]).map {|item| MenuItem.new(item)}
end
end
module Loader
def self.included(base)
class << base
def addon_name
self.to_s.split('::')[-2].underscore.to_sym
end
end
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems