35 lines
645 B
Ruby
35 lines
645 B
Ruby
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module Mongoid
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module Sortable
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extend ActiveSupport::Concern
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included do
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field :sort_number, type: Integer
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after_initialize :set_sort_number
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end
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module ClassMethods
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def default_sort(sorted = true)
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if !sorted
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asc(:sort_number)
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else
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asc
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end
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end
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end
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private
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def set_sort_number
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if self.sort_number.nil?
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last_record = self.class.desc(:sort_number).first
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if last_record
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self.sort_number = (last_record.sort_number + 10) / 10 * 10
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else
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self.sort_number = 10
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end
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end
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end
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end
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end
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