Migration_template.php

<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

class MediaModuleUpdate extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::table('profiles', function (Blueprint $table) {
            $this->upMedia($table, 'media');
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::table('profiles', function (Blueprint $table) {
            $this->downMedia($table, 'media');
        });
    }

    private function upMedia(Blueprint $table, $columnName)
    {
        $table->unsignedInteger($columnName.'_res')->nullable();
        $table->foreign($columnName.'_res')
            ->references('resourcesid')
            ->on('resources')
            ->onDelete('set null');
        $table->unsignedInteger($columnName.'_thumb_res')->nullable();
        $table->foreign($columnName.'_thumb_res')
            ->references('resourcesid')
            ->on('resources')
            ->onDelete('set null');
    }

    private function downMedia(Blueprint $table, $columnName)
    {
        $table->dropForeign([$columnName.'_res']);
        $table->dropForeign([$columnName.'_thumb_res']);
        $table->dropColumn($columnName.'_res');
        $table->dropColumn($columnName.'_thumb_res');
    }
}