Module: ShowBreadcrumb

Defined in:
lib/has_breadcrumb/show_breadcrumb.rb

Instance Method Summary collapse

Instance Method Details

View helper to generate breadcrumbs



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# File 'lib/has_breadcrumb/show_breadcrumb.rb', line 10

def breadcrumb(obj, action = nil, options = {})
  crumb_html = ""
  crumbs = collect_crumbs(obj)

  if options.has_key?(:forced_parent)
    crumb_link = url_for :controller => options[:forced_parent].class.to_s.underscore.pluralize, :action => "show", :id => options[:forced_parent].id
    crumb_html = link_to options[:forced_parent].breadcrumb_name, crumb_link
  elsif crumbs.length == 1
    crumb_link = url_for :controller => obj.class.to_s.underscore.pluralize
    crumb_html = link_to obj.class.model_name.human.pluralize, crumb_link
  end

  crumbs.reverse.each do |crumb_obj|
    unless crumb_obj.id.nil?
      crumb_html += ' > ' if crumb_html.length > 0
      crumb_link = url_for :controller => crumb_obj.class.to_s.underscore.pluralize, :action => "show", :id => crumb_obj.id
      crumb_html += link_to crumb_obj.breadcrumb_name, crumb_link
    end
  end

  crumb_html += ' > ' + action + ' ' + obj.class.model_name.human.titleize if !action.nil?
  crumb_html.html_safe
end

#collect_crumbs(obj, crumbs = []) ⇒ Object

Recursive function to lookup through parent breadcrumbs



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# File 'lib/has_breadcrumb/show_breadcrumb.rb', line 3

def collect_crumbs(obj, crumbs=[])
  crumbs << obj
  crumbs = collect_crumbs(obj.breadcrumb_parent, crumbs) unless obj.breadcrumb_parent.nil?
  crumbs
end