Module: Acts::AsOrderable::InstanceMethods

Defined in:
lib/acts_as_orderable.rb

Overview

Istance methods

Instance Method Summary collapse

Instance Method Details

#move_down(steps = 1) ⇒ Object 



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# File 'lib/acts_as_orderable.rb', line 64

def move_down(steps = 1)
  move(-steps)
end

#move_up(steps = 1) ⇒ Object 



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# File 'lib/acts_as_orderable.rb', line 60

def move_up(steps = 1)
  move(steps)
end

#next ⇒ Object

Fetches previous element - if there’s no previous elements - return nil



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# File 'lib/acts_as_orderable.rb', line 56

def next
  self.class.where("element_order > #{self.element_order} #{search_node_query}").order("element_order ASC").limit(1).first
end

#previous ⇒ Object

Fetches previous element - if there’s no previous elements - return nil



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# File 'lib/acts_as_orderable.rb', line 51

def previous
    self.class.where("element_order < #{self.element_order} #{search_node_query}").order("element_order DESC").limit(1).first
end