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Versions: 13
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Contents
module PandaCms
class Menu < ApplicationRecord
self.table_name = "panda_cms_menus"
after_save :generate_auto_menu_items, if: -> { kind == "auto" }
has_many :menu_items, -> { order(lft: :asc) }, foreign_key: :panda_cms_menu_id, class_name: "PandaCms::MenuItem", inverse_of: :menu
belongs_to :start_page, class_name: "PandaCms::Page", foreign_key: "start_page_id", inverse_of: :page_menu, optional: true
accepts_nested_attributes_for :menu_items, reject_if: :all_blank, allow_destroy: true
validates :name, presence: true, uniqueness: {case_sensitive: false}
validates :kind, presence: true, inclusion: {in: ["static", "auto"]}
validate :validate_start_page
def generate_auto_menu_items
return false if kind != "auto"
# NB: Transactions are not distributed across database connections
transaction do
menu_items.destroy_all
menu_item_root = menu_items.create(text: start_page.title, panda_cms_page_id: start_page.id)
generate_menu_items(parent_menu_item: menu_item_root, parent_page: start_page)
end
end
private
def generate_menu_items(parent_menu_item:, parent_page:)
parent_page.children.each do |page|
menu_item = menu_items.create(text: page.title, panda_cms_page_id: page.id, parent: parent_menu_item)
if page.children
generate_menu_items(parent_menu_item: menu_item, parent_page: page)
end
end
end
#
# Validate that the start page is set if the menu is of kind auto
#
# @return nil
# @visibility private
#
def validate_start_page
if kind == "auto" && start_page.nil?
errors.add(:start_page, "can't be blank")
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems