2019-05-03 06:17:27 +08:00
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# frozen_string_literal: true
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2017-08-31 12:06:56 +08:00
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class ResolveDuplicateGroupNames < ActiveRecord::Migration[4.2]
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2014-12-16 20:07:15 +08:00
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def up
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2018-06-19 14:13:14 +08:00
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results = DB.query_single 'SELECT id FROM groups
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2014-12-16 20:07:15 +08:00
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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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2018-06-19 14:13:14 +08:00
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groups = Group.where id: results
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2014-12-16 20:07:15 +08:00
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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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2017-07-28 09:20:09 +08:00
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dup.update! name: "#{dup.name[0..18]}_#{index + 1}" if index > 0
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2014-12-16 20:07:15 +08:00
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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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