41 lines
1.7 KiB
Ruby
41 lines
1.7 KiB
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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# rubocop:disable RemoveIndex
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class AddPipelineIdToMergeRequestMetrics < ActiveRecord::Migration
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include Gitlab::Database::MigrationHelpers
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disable_ddl_transaction!
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# Set this constant to true if this migration requires downtime.
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DOWNTIME = true
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# When a migration requires downtime you **must** uncomment the following
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# constant and define a short and easy to understand explanation as to why the
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# migration requires downtime.
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DOWNTIME_REASON = 'Adding a foreign key'
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# When using the methods "add_concurrent_index" or "add_column_with_default"
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# you must disable the use of transactions as these methods can not run in an
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# existing transaction. When using "add_concurrent_index" make sure that this
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# method is the _only_ method called in the migration, any other changes
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# should go in a separate migration. This ensures that upon failure _only_ the
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# index creation fails and can be retried or reverted easily.
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#
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# To disable transactions uncomment the following line and remove these
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# comments:
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# disable_ddl_transaction!
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def up
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add_column :merge_request_metrics, :pipeline_id, :integer
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add_foreign_key :merge_request_metrics, :ci_commits, column: :pipeline_id, on_delete: :cascade # rubocop: disable Migration/AddConcurrentForeignKey
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add_concurrent_index :merge_request_metrics, :pipeline_id
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end
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def down
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remove_foreign_key :merge_request_metrics, column: :pipeline_id
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remove_index :merge_request_metrics, :pipeline_id if index_exists? :merge_request_metrics, :pipeline_id
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remove_column :merge_request_metrics, :pipeline_id
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end
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end
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