Orbit/app/models/item.rb

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class Item
include Mongoid::Document
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include Mongoid::Timestamps
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include Mongoid::Tree
include Mongoid::Tree::Ordering
field :name
field :path
field :is_published, :type => Boolean, :default => false
field :enabled_for, :type => Array, :default => nil
field :menu_enabled_for, :type => Array, :default => nil
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has_one :i18n_variable, :as => :language_value, :autosave => true, :dependent => :destroy
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validates_format_of :name, :with => /^[0-9a-zA-Z\-_]+$/
validates :name, :exclusion => { :in => LIST[:forbidden_item_names] }
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validates_uniqueness_of :name, :scope => :parent_id
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validates_presence_of :name
validates_associated :parent, :children
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before_destroy :destroy_children
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after_rearrange :rebuild_path
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def self.find_by_name(item_name)
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Item.first(:conditions => { :name => item_name, :is_published => true })
end
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def visible_children
objects = self.children
a = []
if objects
objects.each do |object|
a << object if object.menu_enabled_for.nil? ? true : object.menu_enabled_for.include?(I18n.locale.to_s)
end
end
a
end
def shift_to(new_parent, position)
unless self.parent_id.to_s.eql?(new_parent) && self.position.eql?(position.to_i)
new_parent = Item.find(new_parent)
current_position_sibling = find_by_parent_and_position(new_parent, position.to_i)
if current_position_sibling
current_position_sibling.at_bottom? ? move_below(current_position_sibling) : move_above(current_position_sibling)
elsif self.parent != new_parent
self.parent = new_parent
save!
end
end
end
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protected
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def rebuild_path
self.path = (self.ancestors_and_self - [Item.root]).collect{|x| x.name unless x.root?}.join('/')
end
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def find_by_parent_and_position(parent, position)
parent.children.detect{|child| child.position == position}
end
# Enable the validation for parent_id
def validates_presence_of_parent_id?
true
end
end