廣東話設置頭後，他們被送到ALSO CASTError：演員爲[的ObjectId]失敗

Question

我似乎得到2個錯誤.....

這裏是路線：

router.post("/event", isLoggedIn, function (req,res){ 
// get data from form and add to events array 
var title = req.body.title; 
var date = req.body.date; 
var description = req.body.description; 
var venue = req.body.venue; 
var photo = req.body.photo; 
var category = req.body.category; 
//get user data to save to the event. 
var owner = { 
    id: req.user._id, 
    username: req.user.username 
}; 
var newEvent = {category: category, title: title, date: date, description: description, venue: venue, photos:{link: photo,date: date}, owner: owner}; 

//Create the event itself in the database, event will return the actual database event. 
Event.create(newEvent, function(err, event){ 
    if (err) { 
     console.log(err) 
    } else { 
     //This takes the event owner ID and saves it into the Event model 
     console.log(event); 
     event.owner.id = req.user._id; 
     //This takes the event username and saves it into the Event model 
     event.owner.username = req.user.username; 
     event.save(); 
     //Save the event ID in the user document 
     console.log(event); 
     User.findByIdAndUpdate(
      req.user._id, 
      {$push: {events:{"ObjectId": event._id}}}, 
      {save: true, upsert: true, new: true}, 
      function (err,newEventData){ 
       if(err){ 
        console.log("error at saving the id ..." + err) 
        res.redirect("/dashboard"); 
       } else { 
        console.log(newEventData); 
       } 
      } 
     ); 
     //Add the Event ID to the User model 
     console.log (owner); 
    }; 
}); 
res.redirect('events'); 
}); 

這裏是從Mongoose返回值的console.log的輸出以及錯誤。

The id of the user 583f30b1e5e7e376502762f5 
Below are all the events pulled{ _id: 583f30b1e5e7e376502762f5, 
    username: 'asdf', 
    __v: 0, 
    favoriteMoments: [], 
    favoriteEvents: [], 
    likeEvents: [], 
    likeMoments: [], 
    friends: [], 
    moments: [], 
    events: [], 
    categories: [] } 
{ __v: 0, 
    title: 'asdf', 
    description: 'asdf', 
    _id: 583f3175b6a3b376a515c146, 
    comments: [], 
    photos: { link: '', date: null }, 
    moments: [], 
    category: [ '' ], 
    owner: { id: 583f30b1e5e7e376502762f5, username: 'asdf' } } 
{ __v: 0, 
    title: 'asdf', 
    description: 'asdf', 
    _id: 583f3175b6a3b376a515c146, 
    comments: [], 
    photos: { link: '', date: null }, 
    moments: [], 
    category: [ '' ], 
    owner: { id: 583f30b1e5e7e376502762f5, username: 'asdf' } } 
{ id: 583f30b1e5e7e376502762f5, username: 'asdf' } 
error at saving the idCastError: Cast to [ObjectId] failed for value "[{"ObjectId":"583f3175b6a3b376a515c146"}]" at path "events" 
events.js:141 
     throw er; // Unhandled 'error' event 
    ^

Error: Can't set headers after they are sent. 
    at ServerResponse.OutgoingMessage.setHeader (_http_outgoing.js:335:11) 
    at ServerResponse.header (/var/www/familysite.com/node_modules/express/lib/response.js:719:10) 
    at ServerResponse.location (/var/www/familysite.com/node_modules/express/lib/response.js:836:15) 
    at ServerResponse.redirect (/var/www/familysite.com/node_modules/express/lib/response.js:874:18) 
    at /var/www/familysite.com/routes/eventRoute.js:67:29 
    at /var/www/familysite.com/node_modules/mongoose/lib/model.js:3388:16 
    at /var/www/familysite.com/node_modules/mongoose/lib/model.js:3388:16 
    at /var/www/familysite.com/node_modules/kareem/index.js:207:48 
    at /var/www/familysite.com/node_modules/kareem/index.js:127:16 
    at nextTickCallbackWith0Args (node.js:419:9) 
    at process._tickCallback (node.js:348:13) 

下面是用戶模式的架構：

const userSchema = new mongoose.Schema({ 
    username: String, 
    password: String, 
    nickname: String, 
    firstName: String, 
    middleName: String, 
    lastName: String, 
    address: String, 
    city: String, 
    state: String, 
    phone: Number, 
    birthday: Date, 
    birthplace: String, 
    userCover: String, 
    categories: Array, 
    events: [{ 
     type: mongoose.Schema.Types.ObjectId, 
     ref: "Event" 
    }], 
    moments: [{ 
     type: mongoose.Schema.Types.ObjectId, 
     ref: "Moments" 
    }], 
    friends: [{ 
     type: mongoose.Schema.Types.ObjectId, 
     ref: "User" 
    }], 
    likeMoments: [{ 
     type: mongoose.Schema.Types.ObjectId, 
     ref: "Moments" 
    }], 
    likeEvents: [{ 
     type: mongoose.Schema.Types.ObjectId, 
     ref: "Event" 
    }], 
    favoriteEvents: [{ 
    type: mongoose.Schema.Types.ObjectId, 
    ref: "Event" 
    }], 
    favoriteMoments: [{ 
     type: mongoose.Schema.Types.ObjectId, 
     ref: "Moments" 
    }] 
}) 

我已經越來越沒有地方用這個演員的問題，現在我有2個錯誤，這似乎很奇怪......讓在這個非常沮喪點和不確定去哪裏。

最後，我有需要創建一個事件的路由，將它保存到創建它的用戶的事件ID，然後轉到/event頁面並顯示每個事件的數據。

Answer 1

如果你看一下代碼下降約3/4的方式，第一個塊...

這一行：

{$push: {events:{"ObjectId": event._id}}}, 

應該是這樣的：

{$push: {events:{_id: event._id}}}, 

那它！所以_id是你如何告訴它是一個ID。