dropColumn('service_id'); $table->dropColumn('database_id'); $table->foreignId('standalone_postgresql_id')->nullable(); }); } /** * Reverse the migrations. */ public function down(): void { Schema::table('environment_variables', function (Blueprint $table) { $table->foreignId('service_id')->nullable(); $table->foreignId('database_id')->nullable(); $table->dropColumn('standalone_postgresql_id'); }); } };