62 lines
1.7 KiB
Ruby
62 lines
1.7 KiB
Ruby
class Item
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include MongoMapper::Document
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key :_type, String
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key :name, String, :required => true, :index => true
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key :full_name, String, :required => true, :index => true
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key :parent_name, String, :index => true
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key :parent_id, ObjectId, :index => true
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key_i18n :title, String, :required => true
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key :position, Integer, :required => true
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key :is_published, Boolean, :required => true, :default => true, :index => true
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validates_format_of :name, :with => /^[a-zA-Z\-_]+$/
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validates_uniqueness_of :name, :scope => :parent_id
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belongs_to :parent, :class_name => "Item", :foreign_key => :parent_id
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many :children, :class_name => "Item", :foreign_key => :parent_id, :dependent => :destroy
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before_validation :setup_default_value
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def self.find_by_name(item_name)
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Item.find(:first, :conditions => { :name => item_name, :is_published => true })
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end
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def ancestors
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node, nodes = self, []
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nodes << node = node.parent while !node.parent.blank?
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nodes.reverse
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end
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def url
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urls = ancestors.map{ |a| a.name } << self.name
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urls.delete("root")
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"/#{urls.join("/")}"
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end
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protected
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def setup_default_value
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if self.position.blank?
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max_page = Page.find(:last, :order => 'position')
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self.position = (max_page)? max_page.position.to_i + 1 : 1
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end
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if self.parent_name.blank?
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self.parent_name = nil
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self.parent_id = nil
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else
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self.parent_id = Item.find_by_name( self.parent_name ).id
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end
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full_node = self.ancestors.map{ |a| a.name }.push( self.name )
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full_node.shift if full_node.size >= 2
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self.full_name = full_node.join("/")
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end
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end |