Module Sequel::Plugins::Tree::InstanceMethods
In: lib/sequel/plugins/tree.rb

Methods

Public Instance methods

Returns list of ancestors, starting from parent until root.

  subchild1.ancestors # => [child1, root]

[Source]

    # File lib/sequel/plugins/tree.rb, line 81
81:         def ancestors
82:           node, nodes = self, []
83:           nodes << node = node.parent while node.parent
84:           nodes
85:         end

Returns list of ancestors, starting from parent until root.

  subchild1.ancestors # => [child1, root]

[Source]

    # File lib/sequel/plugins/tree.rb, line 90
90:         def descendants
91:           nodes = self.children.dup
92:           nodes.each{|child| nodes.concat(child.descendants)}
93:           nodes 
94:         end

Returns the root node of the tree that this node descends from This node is returned if it is a root node itself.

[Source]

     # File lib/sequel/plugins/tree.rb, line 98
 98:         def root
 99:           ancestors.last || self
100:         end

Returns all siblings and a reference to the current node.

  subchild1.self_and_siblings # => [subchild1, subchild2]

[Source]

     # File lib/sequel/plugins/tree.rb, line 105
105:         def self_and_siblings
106:           parent ? parent.children : model.roots
107:         end

Returns all siblings of the current node.

  subchild1.siblings # => [subchild2]

[Source]

     # File lib/sequel/plugins/tree.rb, line 112
112:         def siblings
113:           self_and_siblings - [self]
114:         end

[Validate]