/**
  * Run the migrations.
  *
  * @return void
  */
 public function up()
 {
     Schema::create('locations', function (Blueprint $table) {
         $table->increments('id');
         $table->string('name')->unique();
         $table->string('description');
         $table->string("image");
         $table->string("image_sm");
         $table->timestamps();
     });
     Schema::create('adjacent_location', function (Blueprint $table) {
         $table->integer('location_id')->unsigned()->index();
         $table->integer('adjacent_location_id')->unsigned()->index();
         $table->primary(['location_id', 'adjacent_location_id']);
         $table->enum('direction', Location::getDirections());
         $table->foreign('location_id')->references('id')->on('locations')->onDelete('cascade');
         $table->foreign('adjacent_location_id')->references('id')->on('locations')->onDelete('cascade');
         $table->timestamps();
     });
 }