Module: SnapshotTree::ActsAsTree

Extended by:
ActiveSupport::Concern
Defined in:
lib/snapshot_tree/acts_as_tree.rb

Defined Under Namespace

Modules: ClassMethods Classes: TreeHelper

Instance Method Summary collapse

Instance Method Details

#ancestor_nodes(*args) ⇒ Object 



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# File 'lib/snapshot_tree/acts_as_tree.rb', line 11

def ancestor_nodes(*args)
  self.class.ancestor_nodes(id, *args)
end

#child_nodes(*args) ⇒ Object 



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# File 'lib/snapshot_tree/acts_as_tree.rb', line 35

def child_nodes(*args)
  opts = args.detect { |x| x.is_a?(Hash) }
  opts ? opts.merge!(depth: 1) : args << {depth: 1}

  descendent_nodes(*args)
end

#descendent_nodes(*args) ⇒ Object Also known as: descendant_nodes 



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# File 'lib/snapshot_tree/acts_as_tree.rb', line 5

def descendent_nodes(*args)
  self.class.descendent_nodes(id, *args)
end

#leaf_node?(*args) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/snapshot_tree/acts_as_tree.rb', line 19

def leaf_node?(*args)
  self.class.leaf_nodes(id, *args).where(id: id).size > 0
end

#parent_node(*args) ⇒ Object 



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# File 'lib/snapshot_tree/acts_as_tree.rb', line 31

def parent_node(*args)
  ancestor_nodes(*args).try(:last)
end

#root_node(*args) ⇒ Object 



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# File 'lib/snapshot_tree/acts_as_tree.rb', line 23

def root_node(*args)
  if root_node?(*args)
    self
  else
    ancestor_nodes(*args).limit(1).first
  end
end

#root_node?(*args) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/snapshot_tree/acts_as_tree.rb', line 15

def root_node?(*args)
  self.class.root_nodes(id, *args).where(id: id).size > 0
end