Module: Lexorank::Rankable::ClassMethods

Defined in:
lib/lexorank/rankable.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#lexorank_ranking ⇒ Object (readonly)

Returns the value of attribute lexorank_ranking.



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# File 'lib/lexorank/rankable.rb', line 11

def lexorank_ranking
  @lexorank_ranking
end

Instance Method Details

#rank!(field: :rank, group_by: nil, advisory_lock: {}) ⇒ Object 



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# File 'lib/lexorank/rankable.rb', line 13

def rank!(field: :rank, group_by: nil, advisory_lock: {})
  @lexorank_ranking = Lexorank::Ranking.new(record_class: self, field: field, group_by: group_by, advisory_lock: advisory_lock)
  lexorank_ranking.validate!

  if lexorank_ranking.field
    scope :ranked, ->(direction: :asc) { where.not("#{lexorank_ranking.field}": nil).order("#{lexorank_ranking.field}": direction) }
    include InstanceMethods
  end
end