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Contents
module ActiveAdmin
class MenuItem
# Use this to get to the routes
include Rails.application.routes.url_helpers
attr_accessor :name, :url, :priority, :parent, :display_if_block
def initialize(name, url, priority = 10, options = {})
@name, @url, @priority = name, url, priority
@children = []
@cached_url = {} # Stores the cached url in a hash to allow us to change it and still cache it
@display_if_block = options.delete(:if)
yield(self) if block_given? # Builder style syntax
end
def add(name, url, priority=10, options = {}, &block)
item = MenuItem.new(name, url, priority, options, &block)
item.parent = self
@children << item
end
def children
@children.sort
end
def parent?
!parent.nil?
end
def dom_id
name.downcase.gsub( " ", '_' ).gsub( /[^a-z0-9_]/, '' )
end
def url
case @url
when Symbol
generated = send(@url) # Call the named route
else
generated = @url
end
@cached_url[@url] ||= generated
end
# Returns an array of the ancestory of this menu item
# The first item is the immediate parent fo the item
def ancestors
return [] unless parent?
[parent, parent.ancestors].flatten
end
# Returns the child item with the name passed in
# @blog_menu["Create New"] => <#MenuItem @name="Create New" >
def [](name)
@children.find{ |i| i.name == name }
end
def <=>(other)
result = priority <=> other.priority
result = name <=> other.name if result == 0
result
end
# Returns the display if block. If the block was not explicitly defined
# a default block always returning true will be returned.
def display_if_block
@display_if_block || lambda { |_| true }
end
end
end
Version data entries
12 entries across 12 versions & 4 rubygems