ContestSubmissions::down PHP Метод

    public function down()
    {
        Schema::table('contests', function (Blueprint $table) {
            DB::statement('ALTER TABLE contests CHANGE voting_ends_at ends_at TIMESTAMP NOT NULL');
            DB::statement('ALTER TABLE contests CHANGE description_voting description TEXT');
        });
        Schema::table('contests', function (Blueprint $table) {
            $table->dropColumn('description_enter');
            $table->dropColumn('voting_starts_at');
            $table->dropColumn('entry_starts_at');
            $table->dropColumn('entry_ends_at');
        });
    }