app/helpers/active_admin/breadcrumb_helper.rb
# frozen_string_literal: true
module ActiveAdmin
module BreadcrumbHelper
ID_FORMAT_REGEXP = /\A(\d+|[a-f0-9]{24}|(?:[a-f0-9]{8}-(?:[a-f0-9]{4}-){3}[a-f0-9]{12}))\z/.freeze
# Returns an array of links to use in a breadcrumb
def build_breadcrumb_links(path = request.path, html_options = {})
config = active_admin_config.breadcrumb
if config.is_a?(Proc)
instance_exec(controller, &config)
elsif config.present?
default_breadcrumb_links(path, html_options)
end
end
def default_breadcrumb_links(path, html_options = {})
# remove leading "/" and split up the URL
# and remove last since it's used as the page title
parts = path.split("/").select(&:present?)[0..-2]
parts.each_with_index.map do |part, index|
# 1. try using `display_name` if we can locate a DB object
# 2. try using the model name translation
# 3. default to calling `titlecase` on the URL fragment
if ID_FORMAT_REGEXP.match?(part) && parts[index - 1]
parent = active_admin_config.belongs_to_config.try :target
config = parent && parent.resource_name.route_key == parts[index - 1] ? parent : active_admin_config
name = display_name config.find_resource part
end
name ||= I18n.t "activerecord.models.#{part.singularize}", count: 2.1, default: part.titlecase
# Don't create a link if the resource's show action is disabled
if !config || config.defined_actions.include?(:show)
link_to name, "/" + parts[0..index].join("/"), html_options
else
name
end
end
end
end
end