dropForeign(['server']); $table->renameColumn('server', 'server_id'); $table->unsignedInteger('user_id')->nullable()->after('id'); $table->foreign('server_id')->references('id')->on('servers'); $table->foreign('user_id')->references('id')->on('users'); }); DB::transaction(function () { foreach (Task::all() as $task) { $task->user_id = $task->server->owner_id; $task->save(); } }); } /** * Reverse the migrations. */ public function down() { Schema::table('tasks', function (Blueprint $table) { // $table->dropForeign(['server_id']); // $table->dropForeign(['user_id']); $table->renameColumn('server_id', 'server'); $table->dropColumn('user_id'); $table->foreign('server')->references('id')->on('servers'); }); } }