29 lines
747 B
Ruby
29 lines
747 B
Ruby
module Boards
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module Lists
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class CreateService < Boards::BaseService
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def execute
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List.transaction do
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position = find_next_position
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increment_higher_lists(position)
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create_list_at(position)
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end
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end
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private
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def find_next_position
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max_position = board.lists.label.maximum(:position)
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max_position.nil? ? 0 : max_position.succ
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end
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def create_list_at(position)
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board.lists.create(params.merge(list_type: :label, position: position))
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end
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def increment_higher_lists(position)
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board.lists.label.where('position >= ?', position)
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.update_all('position = position + 1')
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end
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end
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end
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end
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