I have a "Company" Model which has a number of "Rooms".
I'm able to create the Rooms no problem, and they have a link back to the Company.
The problem is that when I get the Company, the Rooms array has no items.
I can see that the Room exists and has a link back to the Company:
{
"RoomType": 0,
"AllowedRoomRoles": [
"5f999f4f542eed1b8fce5fa9"
],
"Enabled": true,
"_id": "5fb677b453658c7070bf9433",
"RoomName": "Martins Room 2",
"RoomPin": "0001",
"Company": "5fad553db19ca100161a0d8f",
"__v": 0
}
However when I do:
var company = await CompanyModel.findById('5fad553db19ca100161a0d8f');
I get the Company back but the Rooms array has no items in it.
Here are my models:
//Room Schema:
const roomSchema = new Schema({
RoomPin: String,
RoomName: String,
RoomType: { type: RoomType, default: RoomType.MeetingRoom } ,
Company: {type: Schema.Types.ObjectId, ref: 'CompanySchema'},
AllowedRoomRoles: [{type: Schema.Types.ObjectId, ref: 'RoomRoleSchema'}],
Enabled: { type: Boolean, default: true },
}, {
collection: "room"
})
//Company Schema:
const companySchema = new Schema({
CompanyName: { type: String, required: true },
CompanyLogo: { type: String, required: true },
Enabled: { type: Boolean, default: true },
CompanyIdentifier: { type: String, required: true },
CompanyWebsite: { type: String, required: true },
Rooms: [{type: Schema.Types.ObjectId, ref: 'RoomSchema'}],
}, {
collection: "company"
})
Minor update:
Seems doing it this way around is fine?
```var rooms = await RoomModel.find({'Company': company._id.toString() });
Related
I am pretty new to mongoDb and want to apply nested query.
I have a business schema like this:
const businessSchema = new mongoose.Schema(
{
name: {
type: String,
required: true,
},
businessType: {
type: Schema.Types.ObjectId,
ref: "businessCategory",
required: true,
},
email: {
type: String,
required: true,
},
password: {
type: String,
required: true,
select: false,
},
review: {
type: [reviewSchema],
},
isDeleted: {
type: Boolean,
default: false,
},
},
{ timestamps: true }
);
Business has a review where user can do the review and reviewSchema is
const reviewSchema = new mongoose.Schema(
{
user: {
type: Schema.Types.ObjectId,
ref: "users",
required: true,
},
rating: {
type: Number,
enum: [1, 2, 3, 4, 5],
},
reviewArray: {
type: [singleReviewSchema],
},
},
{ timestamps: true }
);
One user can do many reviews, and it has reviewArray.
ReviewArray schema is
const singleReviewSchema = new mongoose.Schema(
{
title: {
type: String,
},
description: {
type: String,
},
isDeleted: {
type: Boolean,
default: false,
},
},
{ timestamps: true }
);
How to fetch the business with a condition business: isDeleted:false and its reviews with singleReviewSchema: isDeleted:false
I dont know your model names, so please replace path with correct names
but it might look like:
businnesModel.find({isDeleted: false})
.populate({
path: 'reviewModelName',
model: 'review',
populate: {
path: 'reviewArray',
model: 'singleReviewModelName',
match: {
isDeleted : false
}
}
})
It should provide you array of businessModel documents - even when their singleReviews array will be empty (because all of reviews are deleted, or there was zero reviews). So you have to filter it out in JS.
To avoid filtering in JS, and to do it a bit more efficient way for mongodb, you can go with aggregate instead.
I am building an e-commerce application and this is my orders schema.
const mongoose = require("mongoose");
const orderSchema = new mongoose.Schema({
buyer: {
type: mongoose.Schema.Types.ObjectId,
ref: "buyer",
required: true
},
items: [{
item: {
type: mongoose.Schema.Types.ObjectId,
ref: "item",
},
quantity: {
type: Number,
default: 1
}}
],
seller: {
type: mongoose.Schema.Types.ObjectId,
ref: "seller",
required: true
},
location: {
type: {
type: "String",
enum:['Point']
},
coordinates: {
type: [Number],
index: '2dsphere'
}
},
sendAt:{
type: Date,
default: Date.now
}
});
const orderModel = mongoose.model("orders", orderSchema);
module.exports = orderModel;
I want to have an array having item-reference-id and quantity.
But with the above schema when i enter data, each item is acting as an another sub-document and having _id. Query response image.
I have found solution:
order: [
{
_id: false,
item: {
type: mongoose.Schema.Types.ObjectId,
ref: "items",
required: true,
},
quantity: { type: Number },
},
],
_id: false will stop the subdocument from creating another id for the subdocument.
I am building an e-commerce application. Every store has a delivery range so i want to set delivery range of every store in the database to show the store only to those who falls in the delivery range.
Store Schema.
const mongoose = require("mongoose");
const sellerSchema = new mongoose.Schema({
name:{
type: String,
required: true,
},
type: {
type: String,
required: true
},
location: {
type: {
type: "String",
enum:['Point']
},
coordinates: {
type: [Number],
index: '2dsphere'
}
},
owner: {
type: String,
required: true
},
items: [{
type: mongoose.Schema.Types.ObjectId,
ref: "items"
}],
contact: {
type: String,
required: true
},
loginId: {
index:true,
unique: true,
type: String,
},
password: {
type: String,
required: true
},
createdAt: {
type: Date,
default: Date.now
}
});
const sellerModel = mongoose.model("sellers",sellerSchema);
module.exports = sellerModel;
Suppose I have the following schemas:
var QuizSchema = new mongoose.Schema({
name: { type: String, required: true },
questions: [{ type: mongoose.Schema.Types.ObjectId, ref: 'Question' }],
questionGroups: [{ type: mongoose.Schema.Types.ObjectId, ref: 'QuestionGroup' }]
});
var QuestionSchema = new mongoose.Schema({
number: { type: String, required: true }, // e.g. 1, a, i, anything
question: { type: String, required: true },
type: { type: String, enum: ['multiple choice', 'multiple select', 'short answer'] },
choices: [String],
answers: [String]
});
var QuestionGroupSchema = new mongoose.Schema({
number: { type: String, required: true }, // e.g. 1, a, i, anything
prompt: { type: String },
questions: [{ type: mongoose.Schema.Types.ObjectId, ref: 'Question' }]
});
I am trying to design a way that will allow me to order questions and question groups together.
I was thinking maybe of adding a new field order
var QuizSchema = new mongoose.Schema({
// ...
order: [
{
type: { type: String, enum: ['Question', 'QuestionGroup'] },
id: mongoose.Schema.Types.ObjectId // reference
}
]
});
such that in the database, the field would contain something such as
[
{ type: 'Question', id: ObjectId('57867a34567g67790') },
{ type: 'Question', id: ObjectId('57867a34567g67765') },
{ type: 'QuestionGroup', id: ObjectId('69864b64765y45645') },
{ type: 'Question', id: ObjectId('57867a34567g67770') },
{ type: 'QuestionGroup', id: ObjectId('69864b64767y45647') }
]
This may mean that I would need to "populate" the ordered list of questions and question groups as
quiz.populate('questions questionGroups').exec(function (err, quiz) {
// sort questions and groups by the order
quiz.order = quiz.order.map(function (o) {
if (o.type === 'QuestionGroup') {
return quiz.questionGroups.id(o.id);
}
return quiz.questions.id(o.id);
});
});
So my question: is there a better way to design this?
Virtuals can come in handy here; without persisting order field in db and doing calculations on client each time:
var QuizSchema = new mongoose.Schema({
name: { type: String, required: true },
questions: [{ type: mongoose.Schema.Types.ObjectId, ref: 'Question' }],
questionGroups: [{ type: mongoose.Schema.Types.ObjectId, ref: 'QuestionGroup' }]
},
{
toObject: {
virtuals: true
},
toJSON: {
virtuals: true
}
}
);
QuizSchema
.virtual('order')
.get(function() {
return this.questions.concat(this.questionGroups); //questions followed by questionGroups
});
Sort on createdAt is of course optional, but for that you need to have this field in Question and QuestionGroup:
Quiz.find({}, function (err, quiz) {
//...
})
.populate({path : 'questions', options: {sort: { 'createdAt': 1 }}})
.populate({path : 'questionGroups', options: {sort: { 'createdAt': 1 }}});
all.
I am writing a MEAN stack application, using Mongoose (4.0.6) with Node/Express to interface with MongoDB, and I am running into difficulty populating saved documents when I later save new documents that the existing document should have a reference to. Specifically, in the app I have a user create an instance of a company before creating their admin account for that company, so when the user registers him/herself as an admin, I'd like the company document to populate its users array with the new user.
Here are my schemas for company and user:
User.js...
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var ObjectId = Schema.Types.ObjectId;
var userSchema = new Schema({
first_name: { type: String, required: '{PATH} is required!' },
last_name: { type: String, required: '{PATH} is required!' },
username: { type: String, required: '{PATH} is required!', lowercase: true, unique: true },
password: { type: String, required: '{PATH} is required!' },
roles: { type: [String] },
company: { type: ObjectId, ref: 'Company', required: true },
db_permissions: [{ type: ObjectId, ref: 'DataConnection' }],
created_by: { type: ObjectId, ref: 'User' },
created_at: { type: Date, default: Date.now },
updated_at: [{ type: Date, default: Date.now }]
});
var User = mongoose.model('User', userSchema);
module.exports = {
User: User
};
Company.js...
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var ObjectId = Schema.Types.ObjectId;
var companySchema = new Schema({
name: { type: String, uppercase: true, required: '{PATH} is required!', unique: true },
industry: { type: String, required: '{PATH} is required!' },
phone: { type: String, required: '{PATH} is required!' },
address_line_1: { type: String, uppercase: true, required: '{PATH} is required!' },
address_line_2: { type: String, uppercase: true },
city: { type: String, uppercase: true, required: '{PATH} is required!' },
state_prov: { type: String, uppercase: true, required: '{PATH} is required!' },
postal_code: { type: String, required: '{PATH} is required!' },
country: { type: String, required: '{PATH} is required!' },
logo_url: String,
users: [{ type: ObjectId, ref: 'User' }],
data_connections: [{ type: ObjectId, ref: 'DataConnection' }],
created_at: { type: Date, default: Date.now },
updated_at: [{ type: Date, default: Date.now }]
});
var Company = mongoose.model('Company', companySchema);
module.exports = {
Company: Company
};
Here is the code in my controller:
User.create(userData, function(err, user) {
if(err) {
if(err.toString().indexOf('E11000') > -1) {
err = new Error('Duplicate email');
}
res.status(400);
return res.send({ reason:err.toString() });
}
console.log('company id: ' + user.company);
Company.findById(user.company)
.populate({path: 'users'})
.exec(function (err, company) {
if (err) return handleError(err);
console.log(company.name + '\'s users now includes ' + company.users);
});
res.send(user);
The company (e.g. TEST53) saves to the database correctly with an empty users array:
{
"_id": "55ae421bf469f1b97bb52d5a",
"name": "TEST53",
"industry": "Construction",
"phone": "2352626254",
"city": "GDFGD",
"country": "United States",
"address_line_1": "DSGDFGH",
"state_prov": "GF",
"postal_code": "45645",
"logo_url": "",
"__v": 0,
"updated_at": [
"2015-07-21T12:59:07.609Z"
],
"created_at": "2015-07-21T12:59:07.597Z",
"data_connections": [],
"users": []
}
Then when I create the user, it saves correctly:
{
"_id": "55ae4238f469f1b97bb52d5b",
"username": "test53#test.com",
"password": "$2a$12$ZB6L1NCZEhLfjs99yUUNNOQEknyQmX6nP2BxBvo1uZGlvk9LlKGFu",
"company": "55ae421bf469f1b97bb52d5a",
"first_name": "Test53",
"last_name": "Admin",
"__v": 0,
"updated_at": [
"2015-07-21T12:59:36.925Z"
],
"created_at": "2015-07-21T12:59:36.550Z",
"db_permissions": [],
"roles": [
"admin"
]
}
And I can see that the correct ObjectId prints to the console for user.company:
company id: 55ae421bf469f1b97bb52d5a
But the company's users array doesn't populate with the user's id, and the console.log inside the .exec function prints 'TEST53's users now includes '.
I have tried several ways of wiring this up, with just 'users' instead of { path: 'users' }, writing a function that pushes the user into the array, using .run instead of .exec, but so far without success.
Is there something obvious I'm missing? Thanks in advance for any suggestions!
You're not actually adding the user to the company.
Try this:
Company.findById(user.company, function (err, company) {
if (err) return handleError(err);
// Add the user to the company's list of users.
company.users.push(user);
// Need to save again.
company.save(function(err) {
if (err) return handleError(err);
console.log(company.name + '\'s users now includes ' + company.users);
});
});
res.send(user);
It seems to me that all you want to do is to update the Company model to add the user, as opposed to actually use the (populated) Company document as a response, so I left out an additional Company.findById(...).populate(...) call.