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-rw-r--r--db/migrate/20170320173259_migrate_assignees.rb43
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diff --git a/db/migrate/20170320173259_migrate_assignees.rb b/db/migrate/20170320173259_migrate_assignees.rb
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--- a/db/migrate/20170320173259_migrate_assignees.rb
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@@ -1,43 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-# rubocop:disable Migration/UpdateColumnInBatches
-class MigrateAssignees < ActiveRecord::Migration[4.2]
- include Gitlab::Database::MigrationHelpers
-
- # Set this constant to true if this migration requires downtime.
- DOWNTIME = false
-
- # When a migration requires downtime you **must** uncomment the following
- # constant and define a short and easy to understand explanation as to why the
- # migration requires downtime.
- # DOWNTIME_REASON = ''
-
- # When using the methods "add_concurrent_index" or "add_column_with_default"
- # you must disable the use of transactions as these methods can not run in an
- # existing transaction. When using "add_concurrent_index" make sure that this
- # method is the _only_ method called in the migration, any other changes
- # should go in a separate migration. This ensures that upon failure _only_ the
- # index creation fails and can be retried or reverted easily.
- #
- # To disable transactions uncomment the following line and remove these
- # comments:
- disable_ddl_transaction!
-
- def up
- # Optimisation: this accounts for most of the invalid assignee IDs on GitLab.com
- update_column_in_batches(:issues, :assignee_id, nil) do |table, query|
- query.where(table[:assignee_id].eq(0))
- end
-
- users = Arel::Table.new(:users)
-
- update_column_in_batches(:issues, :assignee_id, nil) do |table, query|
- query.where(table[:assignee_id].not_eq(nil)\
- .and(
- users.project("true").where(users[:id].eq(table[:assignee_id])).exists.not
- ))
- end
- end
-
- def down
- end
-end