diff options
Diffstat (limited to 'db/migrate/20170320171632_create_issue_assignees_table.rb')
-rw-r--r-- | db/migrate/20170320171632_create_issue_assignees_table.rb | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/db/migrate/20170320171632_create_issue_assignees_table.rb b/db/migrate/20170320171632_create_issue_assignees_table.rb new file mode 100644 index 00000000000..72b70baa8d9 --- /dev/null +++ b/db/migrate/20170320171632_create_issue_assignees_table.rb @@ -0,0 +1,40 @@ +# See http://doc.gitlab.com/ce/development/migration_style_guide.html +# for more information on how to write migrations for GitLab. + +class CreateIssueAssigneesTable < ActiveRecord::Migration + include Gitlab::Database::MigrationHelpers + + INDEX_NAME = 'index_issue_assignees_on_issue_id_and_user_id' + + # Set this constant to true if this migration requires downtime. + DOWNTIME = false + + # 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 = '' + + # 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 up + create_table :issue_assignees, id: false do |t| + t.references :user, foreign_key: { on_delete: :cascade }, index: true, null: false + t.references :issue, foreign_key: { on_delete: :cascade }, null: false + end + + add_index :issue_assignees, [:issue_id, :user_id], unique: true, name: INDEX_NAME + end + + def down + drop_table :issue_assignees + end +end |