59 lines
1.8 KiB
Ruby
59 lines
1.8 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module BackgroundMigration
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# This background migration creates records on user_highest_roles according to
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# the given user IDs range. IDs will load users with a left outer joins to
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# have a record for users without a Group or Project. One INSERT per ID is
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# issued.
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class PopulateUserHighestRolesTable
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BATCH_SIZE = 100
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# rubocop:disable Style/Documentation
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class User < ActiveRecord::Base
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self.table_name = 'users'
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scope :active, -> {
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where(state: 'active', user_type: nil, bot_type: nil)
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.where('ghost IS NOT TRUE')
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}
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end
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def perform(from_id, to_id)
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return unless User.column_names.include?('bot_type')
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(from_id..to_id).each_slice(BATCH_SIZE) do |ids|
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execute(
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<<-EOF
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INSERT INTO user_highest_roles (updated_at, user_id, highest_access_level)
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#{select_sql(from_id, to_id)}
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ON CONFLICT (user_id) DO
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UPDATE SET highest_access_level = EXCLUDED.highest_access_level
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EOF
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)
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end
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end
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private
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def select_sql(from_id, to_id)
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User
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.select('NOW() as updated_at, users.id, MAX(access_level) AS highest_access_level')
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.joins('LEFT OUTER JOIN members ON members.user_id = users.id AND members.requested_at IS NULL')
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.where(users: { id: active_user_ids(from_id, to_id) })
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.group('users.id')
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.to_sql
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end
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def active_user_ids(from_id, to_id)
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User.active.where(users: { id: from_id..to_id }).pluck(:id)
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end
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def execute(sql)
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@connection ||= ActiveRecord::Base.connection
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@connection.execute(sql)
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end
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end
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end
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end
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