BigW Consortium Gitlab
class CreateLabelPriorities < ActiveRecord::Migration include Gitlab::Database::MigrationHelpers DOWNTIME = true
DOWNTIME_REASON = 'This migration adds foreign keys'
disable_ddl_transaction! def up create_table :label_priorities do |t| t.references :project, foreign_key: { on_delete: :cascade }, null: false t.references :label, foreign_key: { on_delete: :cascade }, null: false t.integer :priority, null: false t.timestamps null: false end add_concurrent_index :label_priorities, [:project_id, :label_id], unique: true add_concurrent_index :label_priorities, :priority end def down drop_table :label_priorities end end