41 lines
1,017 B
Ruby
41 lines
1,017 B
Ruby
# See http://doc.gitlab.com/ce/development/migration_style_guide.html
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# for more information on how to write migrations for GitLab.
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class AddIndexForRecentPushEvents < ActiveRecord::Migration[4.2]
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include Gitlab::Database::MigrationHelpers
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DOWNTIME = false
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disable_ddl_transaction!
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def up
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add_concurrent_index_if_not_present(
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:merge_requests,
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[:source_project_id, :source_branch]
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)
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remove_concurrent_index_if_present(:merge_requests, :source_project_id)
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end
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def down
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add_concurrent_index_if_not_present(:merge_requests, :source_project_id)
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remove_concurrent_index_if_present(
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:merge_requests,
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[:source_project_id, :source_branch]
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)
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end
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def add_concurrent_index_if_not_present(table, columns)
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return if index_exists?(table, columns)
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add_concurrent_index(table, columns)
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end
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def remove_concurrent_index_if_present(table, columns)
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return unless index_exists?(table, columns)
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remove_concurrent_index(table, columns)
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end
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end
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