38 lines
		
	
	
		
			970 B
		
	
	
	
		
			Ruby
		
	
	
	
			
		
		
	
	
			38 lines
		
	
	
		
			970 B
		
	
	
	
		
			Ruby
		
	
	
	
class Snippet
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  include Mongoid::Document
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  field :name, :index => true
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  field :full_name, :index => true
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  field :parent_id, :index => true
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  field :parent_name
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  field :content
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  before_validation :setup_default_value
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  validates_presence_of :name, :full_name, :parent_id
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  validates_uniqueness_of :name, :scope => :parent_id
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  referenced_in :parent, :class_name => "Item", :foreign_key => :parent_id
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  # Get an array of ancestors
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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? rescue nil
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    nodes.reverse
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  end
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  def setup_default_value
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    # Set the parent value
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    self.parent_name = Item.find( self.parent_id ).name rescue nil
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    # Build the full_name from the ancestors array
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    full_node = self.ancestors.map{ |a| a.name }.push( self.name )
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    # Remove root node if not root
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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
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