AddSoftDeleteToBeatmapDiscussionPosts::up PHP Метод

    public function up()
    {
        //
        Schema::table('beatmap_discussion_posts', function ($table) {
            $table->softDeletes();
            $table->unsignedMediumInteger('deleted_by_id')->nullable();
            $table->foreign('deleted_by_id')->references('user_id')->on('phpbb_users')->onDelete('SET NULL');
        });
    }