schema builder laravel migrations unique on two columns

Question

How can I set a unique constraints on two columns?

class MyModel extends Migration {
  public function up()
  {
    Schema::create(\'storage_trackers\', fun         


        

Answer 1

DB::statement("ALTER TABLE `project_majr_actvities`
               ADD UNIQUE `unique_index`(`activity_sr_no`, `project_id`)");