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30990006a9
This reduces chances of errors where consumers of strings mutate inputs and reduces memory usage of the app. Test suite passes now, but there may be some stuff left, so we will run a few sites on a branch prior to merging
14 lines
494 B
Ruby
14 lines
494 B
Ruby
# frozen_string_literal: true
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class IndexUserBadges < ActiveRecord::Migration[4.2]
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def change
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execute 'DELETE FROM user_badges USING user_badges ub2
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WHERE user_badges.badge_id = ub2.badge_id AND
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user_badges.user_id = ub2.user_id AND
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user_badges.post_id IS NOT NULL AND
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user_badges.id < ub2.id
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'
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add_index :user_badges, [:badge_id, :user_id, :post_id], unique: true, where: 'post_id IS NOT NULL'
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end
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end
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