diff options
Diffstat (limited to 'db/migrate/20190927055500_create_description_versions.rb')
| -rw-r--r-- | db/migrate/20190927055500_create_description_versions.rb | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/db/migrate/20190927055500_create_description_versions.rb b/db/migrate/20190927055500_create_description_versions.rb new file mode 100644 index 00000000000..6ad34d4a89e --- /dev/null +++ b/db/migrate/20190927055500_create_description_versions.rb @@ -0,0 +1,29 @@ +# frozen_string_literal: true + +class CreateDescriptionVersions < ActiveRecord::Migration[5.2] + include Gitlab::Database::MigrationHelpers + + DOWNTIME = false + + def up + create_table :description_versions do |t| + t.timestamps_with_timezone + t.references :issue, index: false, foreign_key: { on_delete: :cascade }, type: :integer + t.references :merge_request, index: false, foreign_key: { on_delete: :cascade }, type: :integer + t.references :epic, index: false, foreign_key: { on_delete: :cascade }, type: :integer + t.text :description + end + + add_index :description_versions, :issue_id, where: 'issue_id IS NOT NULL' + add_index :description_versions, :merge_request_id, where: 'merge_request_id IS NOT NULL' + add_index :description_versions, :epic_id, where: 'epic_id IS NOT NULL' + + add_column :system_note_metadata, :description_version_id, :bigint + end + + def down + remove_column :system_note_metadata, :description_version_id + + drop_table :description_versions + end +end |