obdev/db/migrate/20240117025159_create_join_table_vendor_employer.rb

class CreateJoinTableVendorEmployer < ActiveRecord::Migration[7.1]
  def change
    create_join_table :vendors, :employers do |t|
      # t.index [:vendor_id, :employer_id]
      # t.index [:employer_id, :vendor_id]
    end
  end
end