mirror of https://github.com/fspc/BikeShed-1.git
Ron Warholic
11 years ago
2 changed files with 26 additions and 1 deletions
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class ChangeBikeShopId < ActiveRecord::Migration |
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# We don't use change_column because we have arbitrary strings we |
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# need to strip the characters from to make the integer values |
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def up |
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bikes = Bike.all |
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remove_column :bikes, :shop_id |
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add_column :bikes, :shop_id, :integer, :unique => true |
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# deconflict shop ids |
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bikes.each do |bike| |
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new_id = bike.shop_id.gsub(/[^\d]/, '').to_i rescue 1 |
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while bikes.map(&:shop_id).include? new_id |
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new_id += 1 |
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end |
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bike.shop_id = new_id |
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end |
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bikes.each(&:save) |
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end |
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def down |
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change_column :bikes, :shop_id, :string |
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end |
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end |
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