29 lines
1,023 B
Ruby
29 lines
1,023 B
Ruby
# frozen_string_literal: true
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class CreateDescriptionVersions < ActiveRecord::Migration[5.2]
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include Gitlab::Database::MigrationHelpers
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DOWNTIME = false
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def up
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create_table :description_versions do |t|
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t.timestamps_with_timezone
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t.references :issue, index: false, foreign_key: { on_delete: :cascade }, type: :integer
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t.references :merge_request, index: false, foreign_key: { on_delete: :cascade }, type: :integer
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t.references :epic, index: false, foreign_key: { on_delete: :cascade }, type: :integer
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t.text :description
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end
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add_index :description_versions, :issue_id, where: 'issue_id IS NOT NULL'
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add_index :description_versions, :merge_request_id, where: 'merge_request_id IS NOT NULL'
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add_index :description_versions, :epic_id, where: 'epic_id IS NOT NULL'
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add_column :system_note_metadata, :description_version_id, :bigint
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end
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def down
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remove_column :system_note_metadata, :description_version_id
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drop_table :description_versions
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end
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end
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