Laravel 5.x Database Triggers and possible best practices

This post is to sort-of inform and ask a question. Hello all, I'm developing a large system that puts triggers to good use. We're currently running the server-side on Laravel 5.2 with php 7 using phpmyadmin. Within Laravel there isn't really much solid documentation on how to use a trigger through migrations and from what I've discovered you mostly have to do it "raw".

Below is a simple example, that I know of, on how to write a trigger in a migration:

class CreateAccountTriggerTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
     public function up() 
     {   
         DB::unprepared('
             CREATE TRIGGER `my_trigger_name` AFTER INSERT ON `table_the_change_happened`
             FOR EACH ROW 

             BEGIN

             INSERT INTO `this_table`
                  (field1,field2,field3)
             VALUES
                  ('value1','value2','value3')

             END
         ');
     }

     /**
      * Reverse the migrations.
      *
      * @return void
      */
     public function down() {
          DB::unprepared('DROP TRIGGER IF EXISTS `my_trigger_name`');
     }
 }

The Question: Does anyone know of a clean way to use variables within laravel's query builder?

The method DB::unprepared() does not allow you to attach bound items to it. Trying it in Eloquent is near impossible as there is no solid documentation that I've found for this issue. If anyone can elaborate on this I would greatly appreciate it. Thank you in advance

via Chebli Mohamed