diff options
Diffstat (limited to 'db/migrate/20171025110159_add_latest_merge_request_diff_id_to_merge_requests.rb')
-rw-r--r-- | db/migrate/20171025110159_add_latest_merge_request_diff_id_to_merge_requests.rb | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/db/migrate/20171025110159_add_latest_merge_request_diff_id_to_merge_requests.rb b/db/migrate/20171025110159_add_latest_merge_request_diff_id_to_merge_requests.rb new file mode 100644 index 00000000000..74a2badc130 --- /dev/null +++ b/db/migrate/20171025110159_add_latest_merge_request_diff_id_to_merge_requests.rb @@ -0,0 +1,26 @@ +class AddLatestMergeRequestDiffIdToMergeRequests < ActiveRecord::Migration + include Gitlab::Database::MigrationHelpers + + DOWNTIME = false + + disable_ddl_transaction! + + def up + add_column :merge_requests, :latest_merge_request_diff_id, :integer + add_concurrent_index :merge_requests, :latest_merge_request_diff_id + + add_concurrent_foreign_key :merge_requests, :merge_request_diffs, + column: :latest_merge_request_diff_id, + on_delete: :nullify + end + + def down + remove_foreign_key :merge_requests, column: :latest_merge_request_diff_id + + if index_exists?(:merge_requests, :latest_merge_request_diff_id) + remove_concurrent_index :merge_requests, :latest_merge_request_diff_id + end + + remove_column :merge_requests, :latest_merge_request_diff_id + end +end |