Module: LoyalCore::ActsAsTree::InstanceMethods

Instance Method Summary collapse

Returns:



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# File 'lib/loyal_core/acts/tree.rb', line 35

def children?
  self.children_count > 0
end

祖先



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# File 'lib/loyal_core/acts/tree.rb', line 40

def tree_ancestor_ids
  self.ancestors.map(&:id).uniq.sort
end

子孙后代



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# File 'lib/loyal_core/acts/tree.rb', line 58

def tree_descendant_ids
  self.descendants.map(&:id).uniq.sort
end



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# File 'lib/loyal_core/acts/tree.rb', line 44

def tree_self_and_ancestor_ids
  self.self_and_ancestors.map(&:id).uniq.sort
end

子孙后代包括自己



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# File 'lib/loyal_core/acts/tree.rb', line 63

def tree_self_and_descendant_ids
  self.self_and_descendants.map(&:id).uniq.sort
end



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# File 'lib/loyal_core/acts/tree.rb', line 53

def tree_self_and_siblings_ids
  self.self_and_siblings_ids.map(&:id).uniq.sort
end

同一个父母的孩子



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# File 'lib/loyal_core/acts/tree.rb', line 49

def tree_sibling_ids
  self.siblings.map(&:id).uniq.sort
end