gitlab-org--gitlab-foss/db/migrate/20160824124900_add_table_issue_metrics.rb
2017-02-23 09:31:56 -06:00

37 lines
1.5 KiB
Ruby

# See http://doc.gitlab.com/ce/development/migration_style_guide.html
# for more information on how to write migrations for GitLab.
class AddTableIssueMetrics < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
# Set this constant to true if this migration requires downtime.
DOWNTIME = true
# When a migration requires downtime you **must** uncomment the following
# constant and define a short and easy to understand explanation as to why the
# migration requires downtime.
DOWNTIME_REASON = 'Adding foreign key'.freeze
# When using the methods "add_concurrent_index" or "add_column_with_default"
# you must disable the use of transactions as these methods can not run in an
# existing transaction. When using "add_concurrent_index" make sure that this
# method is the _only_ method called in the migration, any other changes
# should go in a separate migration. This ensures that upon failure _only_ the
# index creation fails and can be retried or reverted easily.
#
# To disable transactions uncomment the following line and remove these
# comments:
# disable_ddl_transaction!
def change
create_table :issue_metrics do |t|
t.references :issue, index: { name: "index_issue_metrics" }, foreign_key: { on_delete: :cascade }, null: false
t.datetime 'first_mentioned_in_commit_at'
t.datetime 'first_associated_with_milestone_at'
t.datetime 'first_added_to_board_at'
t.timestamps null: false
end
end
end