Question

我一直在http://meteor.com/examples/leaderboard修改示例流星应用。正如您在下面的代码中所看到的，我试图在有人按下重置按钮时更新玩家的分数。这在客户端更新了，但在我的控制台中我注意到错误＆＃34;更新失败：500 - 内部服务器错误＆＃34;。经过进一步检查，我发现确实没有更新服务器端数据库。有什么想法吗？（相关代码在重置功能中，但我已在此处公布其余部分以防万一）

// Set up a collection to contain player information. On the server,
// it is backed by a MongoDB collection named "players."

Players = new Meteor.Collection("players");

var SORT_OPTIONS = {
  name:  {name: 1, score: -1},
  score: {score: -1, name: 1}
}

var NAMES = [ "Ada Lovelace",
              "Grace Hopper",
              "Marie Curie",
              "Carl Friedrich Gauss",
              "Nikola Tesla",
              "Claude Shannon" ];

function reset(options) {
  if (options && options['seed'] === true) {
    for (var i = 0; i < NAMES.length; i++) {
      Players.insert({ name: NAMES[i], score: Math.floor(Math.random()*10)*5 });
    }
  }

  if (options && options['restart'] === true) {
  Players.update( {},
                  { $set: { score: Math.floor(Math.random()*10)*5 } },
                  {multi: true});
  }

}

if (Meteor.is_client) {
  Template.leaderboard.players = function () {
    var sort_by = SORT_OPTIONS[Session.get("sort_by")]
    return Players.find({}, {sort: sort_by});
  };

  Template.leaderboard.selected_name = function () {
    var player = Players.findOne(Session.get("selected_player"));
    return player && player.name;
  };

  Template.player.selected = function () {
    return Session.equals("selected_player", this._id) ? "selected" : '';
  };

  Template.leaderboard.events = {
    'click input.inc': function () {
      Players.update(Session.get("selected_player"), {$inc: {score: 5}});
    },
    'click input.sort': function () {
      Session.get("sort_by") == "score" ? Session.set("sort_by", "name") : Session.set("sort_by", "score");
    },
    'click input.reset': function () {
      reset({'restart': true});
    }
  };

  Template.player.events = {
    'click': function () {
      Session.set("selected_player", this._id);
    }
  };
}

// On server startup, create some players if the database is empty.
if (Meteor.is_server) {
  Meteor.startup(function () {
    if (Players.find().count() === 0) {
      reset({'seed': true});
    }
  });
}

Answer 1

这也发生在我身上，但检查服务器日志，我遇到的问题是$ inc修饰符需要一个数字作为更新方法的参数，所以我确保它得到它 Number()

Answer 2

时间过去了，它现在正常运行:)我想这是他们的演示部署网站上的一些服务器问题。

尝试在Meteor.js中更新服务器数据库时发生内部服务器错误

2 个答案: