24 lines
690 B
Ruby
24 lines
690 B
Ruby
class ResolveDuplicateGroupNames < ActiveRecord::Migration
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def up
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results = Group.exec_sql 'SELECT id FROM groups
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WHERE name ILIKE
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(SELECT lower(name)
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FROM groups
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GROUP BY lower(name)
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HAVING count(*) > 1);'
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groups = Group.where id: results.map { |r| r['id'] }
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groups.group_by { |g| g.name.downcase }.each do |key, value|
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value.each_with_index do |dup, index|
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dup.update! name: "#{dup.name[0..18]}_#{index + 1}" if index > 0
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end
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end
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end
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def down
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# does not reverse changes
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end
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end
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