Example crumbs DSL

crum.rb

# lib/breadcrumbs/admin_breadcrumbs.rb

AdminBreadcrumbs = Crumbs.build do
  framework :rails
  namespace :admin

  crumb 'welcome#index' do
    link 'Дашборд'
  end

  crumb 'users#index' do
    link 'Сотрудники'
    parent 'welcome#index'
  end

  crumb 'users#show' do |user|
    link user.title
    parent 'users#index'
  end

  crumb 'users#edit' do |user|
    link 'Редактировать'
    parent 'users#show', user
  end
end

# some layout

AdminBreadcrumbs.draw(params)

# admin/users/index.slim
AdminBreadcrumbs.expose

# admin/users/show.slim
AdminBreadcrumbs.expose(@user)