Module: Mongoid::Acts::NestedSet::Update

Included in:
Document::InstanceMethods
Defined in:
lib/mongoid_nested_set/update.rb

Instance Method Summary collapse

Instance Method Details

#move_left ⇒ Object

Shorthand method for finding the left sibling and moving to the left of it



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# File 'lib/mongoid_nested_set/update.rb', line 6

def move_left
  move_to_left_of left_sibling
end

#move_possible?(target) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mongoid_nested_set/update.rb', line 41

def move_possible?(target)
  self != target && # Can't target self
    same_scope?(target) && # can't be in different scopes
    !((left <= target.left && right >= target.left) or (left <= target.right && right >= target.right))
end

#move_right ⇒ Object

Shorthand method for finding the right sibling and moving to the right of it



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# File 'lib/mongoid_nested_set/update.rb', line 12

def move_right
  move_to_right_of right_sibling
end

#move_to_child_of(node) ⇒ Object

Move the node to the child of another node (you can pass id only)



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# File 'lib/mongoid_nested_set/update.rb', line 30

def move_to_child_of(node)
  move_to node, :child
end

#move_to_left_of(node) ⇒ Object

Move the node to the left of another node (you can pass id only)



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# File 'lib/mongoid_nested_set/update.rb', line 18

def move_to_left_of(node)
  move_to node, :left
end

#move_to_right_of(node) ⇒ Object

Move the node to the right of another node (you can pass id only)



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# File 'lib/mongoid_nested_set/update.rb', line 24

def move_to_right_of(node)
  move_to node, :right
end

#move_to_root ⇒ Object

Move the node to root nodes



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# File 'lib/mongoid_nested_set/update.rb', line 36

def move_to_root
  move_to nil, :root
end