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[Glitch] Fix n+1 query in settings migration

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Port 0ad2413b35 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>
This commit is contained in:
Eugen Rochko 2023-05-02 10:26:39 +02:00 committed by Claire
parent 75e28731a5
commit 8bf9bd5ac8
1 changed files with 17 additions and 14 deletions
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7
db/migrate/20230215074424_move_glitch_user_settings.rb
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@ -31,9 +31,11 @@ class MoveGlitchUserSettings < ActiveRecord::Migration[6.1]
end
def up
User.find_each do |user|
previous_settings = LegacySetting.where(thing_type: 'User', thing_id: user.id).index_by(&:var)
User.find_in_batches do |users|
previous_settings_for_batch = LegacySetting.where(thing_type: 'User', thing_id: users.map(&:id)).group_by(&:thing_id)
users.each do |user|
previous_settings = previous_settings_for_batch[user.id]&.index_by(&:var) || {}
user_settings = Oj.load(user.settings || '{}')
user_settings.delete('theme')
@ -54,6 +56,7 @@ class MoveGlitchUserSettings < ActiveRecord::Migration[6.1]
user.update_column('settings', Oj.dump(user_settings)) # rubocop:disable Rails/SkipsModelValidations
end
end
end
def down; end
end