I have defined a mongoose user schema:
var userSchema = mongoose.Schema({
email: { type: String, required: true, unique: true},
password: { type: String, required: true},
name: {
first: { type: String, required: true, trim: true},
last: { type: String, required: true, trim: true}
},
phone: Number,
lists: [listSchema],
friends: [mongoose.Types.ObjectId],
accessToken: { type: String } // Used for Remember Me
});
var listSchema = new mongoose.Schema({
name: String,
description: String,
contents: [contentSchema],
created: {type: Date, default:Date.now}
});
var contentSchema = new mongoose.Schema({
name: String,
quantity: String,
complete: Boolean
});
exports.User = mongoose.model('User', userSchema);
the friends parameter is defined as an array of Object IDs.
So in other words, a user will have an array containing the IDs of other users. I am not sure if this is the proper notation for doing this.
I am trying to push a new Friend to the friend array of the current user:
user = req.user;
console.log("adding friend to db");
models.User.findOne({'email': req.params.email}, '_id', function(err, newFriend){
models.User.findOne({'_id': user._id}, function(err, user){
if (err) { return next(err); }
user.friends.push(newFriend);
});
});
however this gives me the following error:
TypeError: Object 531975a04179b4200064daf0 has no method 'cast'
If you want to use Mongoose populate feature, you should do:
var userSchema = mongoose.Schema({
email: { type: String, required: true, unique: true},
password: { type: String, required: true},
name: {
first: { type: String, required: true, trim: true},
last: { type: String, required: true, trim: true}
},
phone: Number,
lists: [listSchema],
friends: [{ type : ObjectId, ref: 'User' }],
accessToken: { type: String } // Used for Remember Me
});
exports.User = mongoose.model('User', userSchema);
This way you can do this query:
var User = schemas.User;
User
.find()
.populate('friends')
.exec(...)
You'll see that each User will have an array of Users (this user's friends).
And the correct way to insert is like Gabor said:
user.friends.push(newFriend._id);
I'm new to Mongoose myself, so I'm not entirely sure this is right. However, you appear to have written:
friends: [mongoose.Types.ObjectId],
I believe the property you're looking for is actually found here:
friends: [mongoose.Schema.Types.ObjectId],
It may be that the docs have changed since you posted this question though. Apologies if that's the case. Please see the Mongoose SchemaTypes docs for more info and examples.
I would try this.
user.friends.push(newFriend._id);
or
friends: [userSchema],
but i'm not sure if this is correct.
Related
I need to create an account for a student and a teacher. Should I create two separate models in mongoose for student and teacher? What's the right approach? Student and teacher will share some properties and some will differ.
At this moment I have only one model for student and tutor:
const userSchema = new Schema({
name: {
type: String,
trim: true,
required: true,
maxLength: 32
},
surname: {
type: String,
trim: true,
required: true,
maxLength: 32
},
email: {
type: String,
unique: true,
trim: true,
required: true,
lowercase: true
},
isActiveTutor: {
type: Boolean,
default: false
},
birthCountry: String,
initials: String,
hashed_password: {
type: String,
required: true
},
salt: String,
role: {
type: String
},
teachingLanguage:{
type: Object,
/*language: {
language,
level,
price
}*/
},
resetPasswordLink: {
data: String,
default: ''
}
}, {timestamps: true});
But what if I wanted to give a teacher properties that a student would not have?
In case someone pass by here.
const options = {discriminatorKey: 'kind'};
const userSchema = new mongoose.Schema({/* user schema: (Common) */}, options);
const User = mongoose.model('User', userSchema);
// Schema that inherits from User
const Teacher = User.discriminator('Teacher',
new mongoose.Schema({/* Schema specific to teacher */}, options));
const Student = User.discriminator('Student',
new mongoose.Schema({/* Schema specific to student */}, options));
const teacher = new Teacher({/* */});
const student = new Student({/* */});
Original answer(modified): here.
Have a look at the docs here.
I wanted to save the data in "messageSchema" which is sub document of chatSchema by checking the "receiver" of chatSchema and "username" of userSchema.
like pseudoCode:-
if(userSchema.username == "Rahul" && userSchema.chatSchema.receiver){
then save the data in chatSchema.message;
}
Here is my Schema:-
var messageSchema = mongoose.Schema({
messageId: {type: String, unique: true, required: true},
created: {type: Date, default: Date.now},
messageContent: String
});
var chatSchema = mongoose.Schema({
message: [messageSchema],
receiver: {type: String, required: true}
});
var userSchema = mongoose.Schema({
username: { type: String, unique: true, required: true },
name: { type: String, required: true },
email: { type: String, required: true, unique: true },
password: { type: String, required: true },
token: { type: String, required: false },
conversations: [chatSchema]
});
please suggest what should be code to save the message data.
tried below one that didn't work.
User.findOneAndUpdate({username: "rahul", "conversations.receiver": data.receiver },{$push: {"conversations.message": message}});
I think you need to use $elemMatch instead of the dot notation for matching properties within an array. Try this:
User.findOneAndUpdate(
{
username: "rahul",
conversations: {
$elemMatch: { receiver: data.receiver }
}
},
// or whatever your update is
{$push: {"conversations.message": message}
})
I'm sorry if this might be a duplicate question but I'm quite having a hard time understanding Mongoose. I am working on a Node.js project that implements Mongoose and MongoDB. What I want to accomplish is to modify and save some users' data through a call from a specific endpoint.
Mongoose Schema looks like this
var UserSchema = new Schema({
isAdmin: {type: Boolean, default: false},
name: String,
surname: String,
nickname: { type: String },
email: { type: String, lowercase: true, required: true, trim: true, unique: true, dropDubs: true },
password: { type: String, required: true },
salt: { type: String },
verified: { type: Boolean, default: false },
bio: {
type: { type: String, enum: [0,1] }, // 0='Appassionato', 1='Giocatore'
birthday: String,
height: Number,
number: Number,
role: { type: String, enum: [0,1,2,3] }, // 0='Playmaker', 1='Ala', 2='Guardia', 3='Centro'
team: String,
city: String,
aboutMe: String,
},
newsletter: {type: Boolean, default: false},
lastCheckin: {type: mongoose.Schema.Types.ObjectId, ref: 'Checkin'},
follows: [{type: mongoose.Schema.Types.ObjectId, ref: 'Structure'}],
score: { type: Number, default: 0 },
profilePicture: String,
lastLogin: {type: Date},
facebook: {
id: String,
accessToken: String,
profileImage : String
}
}, {
collection: 'users',
retainKeyOrder: true,
timestamps: true,
}).plugin(mongoosePaginate);
Following is the code for when the endpoint gets interrogated
exports.updateUser = (req,res) => {
var userId = req.params.userId;
var updates = req.body;
User.findOneAndUpdate({_id: userId}, {$set: updates}, (err, saved) => {
if (!err) {
console.log("Ritorno questo: " + saved);
return res.status(202).json(saved);
} else {
return res.status(500).json(saved);
}
});
};
As far as I understood, the method findOneAndUpdate exposed by Mongoose should find the document I'm looking for and then modify it and save it. This doesn't happen though.
Through PostMan I'm sending this JSON
{"bio.aboutMe":"Hello this is just a brief description about me"}
But PostMan is responding with the non-modified object. What am I missing here?
What you need to do is to add {new:true}, it give you back the updated document.
In the documentation :
If we do need the document returned in our application there is
another, often better, option:
> Tank.findByIdAndUpdate(id, { $set: { size: 'large' }}, { new: true },
> function (err, tank) { if (err) return handleError(err);
> res.send(tank); });
This is something I don't really like as there is another option if we don't want to have the document → update
So what you need to do is :
User.findOneAndUpdate({_id: userId}, {$set: updates}, {new:true}.....
I have a User document which has a Notes subdocument.
I'm using the following code to push new notes for the user with the given email address.
UserSchema.statics.addNotesToUser = function (email, notes, callback) {
return this.updateOne(
{'email': email},
{$push: {notes}},
callback
)
};
This is working fine, however it's ignoring my unique constraint on the NoteSchema. these are my schemas
const NoteSchema = new Schema({
_id: false,
id: {type: String, required: true, trim: true, unique: true},
content: {type: String, required: true, trim: true, lowercase: true},
added: {type: Date, default: Date.now},
used: {type: Date, default: Date.now},
book: {
name: {type: String, required: true}
}
});
const UserSchema = new Schema({
email: {type: String, required: true, trim: true, lowercase: true, unique: true},
notes: [NoteSchema]
});
I'm wondering how I can make sure that when pushing new notes to my user, I can validate if the ID of the notes is unique.
Thank you.
To achieve uniqueness constraint like functionality in subdocuments, hope that's OK.
let notesId = [];
notes.forEach(function(val,index){
notesId.push(val.id)
})
db.yourCollection.update(
{ 'email': email, 'NoteSchema.id': { '$ne': { $each: notesId } }},
{$push: {notes} },
callback)
I'm trying to accomplish something really easy but still manage to fail.
What I am trying to do is when I get a get request on my server I want to return all documents BUT just the specific fields populated.
My schema goes as follows
var clientSchema = new Schema({
name:{
type: String,
required: true
},
phone:{
type: String,
required: true
},
email:{
type: String,
required: true
},
address: {
type: String,
required: false
}
});
var orderDetailsSchema = new Schema({
//isn't added to frontend
confirmed:{
type: Boolean,
required: true,
default: false
},
service:{
type: String,
required: true
},
delivery:{
type: String,
required: false
},
payment:{
type: String,
required: false
},
status:{
type: String,
required: true,
default: "new order"
},
});
var orderSchema = new Schema({
reference:{
type: String,
required: true
},
orderdetails: orderDetailsSchema,
client: clientSchema,
wheelspec: [wheelSchema],
invoice:{
type: Schema.Types.ObjectId,
ref: 'Invoice'
}
});
What I want is to return only client.phone and client.email plus orderdetails.status but still retain reference field if possible
I have tried using lean() and populate() but had no luck with them. Is there anything utterly simple I am missing? Or what I am trying to achieve is not that easy?
Thanks!
You can specify the fields to return like this:
Order.findOne({'_id' : id})
.select('client.phone client.email orderdetails.status reference')
.exec(function(err, order) {
//
});
Alternative syntax
Order.findOne({'_id' : id})
.select('client.phone client.email orderdetails.status reference')
.exec(function(err, order) {
//
});
I've made a number of assumptions here, but you should be able to see the idea.
Simply do like this :-
Order is model name which is registered in mongoose.
Order.findById(id) // set id you have to get
. populate('client')
.select('client.phone client.email orderdetails.status reference')
.exec(function(err, order) {
//
});
You can use projection.
await Order.findById(diaryId, {phone: 1, email: 1, status: 1})
If phone:1 is set to 1, it is included, if phone:0, then it's excluded.