class CreateAgencies < ActiveRecord::Migration[6.0] def change create_table :agencies do |t| t.references :agent, null: false, foreign_key: true t.references :user, null: false, foreign_key: true t.integer :roles, default: 0, null: false, limit: 2 t.timestamps end add_index :agencies, [:agent_id, :user_id], unique: true end end