Related
I am trying to create a basic social media website, with post having different comments, likes, comments also having likes. If the logged in user is the one that made the comment or post, he could be able to delete the post.
So I have to use the deep populate method of mongoose, but the issue I am having is, when the content of the comment is showing, then the name of the user that made that comment is missing.
Post Schema is as follows
content: {
type: String,
required: true
},
user: {
type: mongoose.Schema.Types.ObjectId,
ref: 'User'
},
// include the array of ids of all comments in this post schema itself
comments: [
{
type: mongoose.Schema.Types.ObjectId,
ref: 'Comment'
}
],
likes: [
{
type: mongoose.Schema.Types.ObjectId,
ref: 'Like'
}
]
},{
timestamps: true
});
Like Schema is as follows -
const likeSchema = new mongoose.Schema({
user: {
type: mongoose.Schema.ObjectId
},
// this defines the object id of the liked object
likeable: {
type: mongoose.Schema.ObjectId,
require: true,
refPath: 'onModel'
},
// this field is used for defining the type of the liked object since this is a dynamic reference
onModel: {
type: String,
required: true,
enum: ['Post', 'Comment']
}
}, {
timestamps: true
});
User Schema is as follows -
const userSchema = new mongoose.Schema({
email: {
type: String,
required: true,
unique: true
},
password: {
type: String,
required: true
},
name: {
type: String,
required: true
},
avatar: {
type: String
}
}, {
timestamps: true
});
Comment Schema is as follows -
const commentSchema = new mongoose.Schema({
content: {
type: String,
required: true
},
// comment belongs to a user
user: {
type: mongoose.Schema.Types.ObjectId,
ref: 'User'
},
post: {
type: mongoose.Schema.Types.ObjectId,
ref: 'Post'
},
likes: [
{
type: mongoose.Schema.Types.ObjectId,
ref: 'Like'
}
]
},{
timestamps: true
});
And this is the populate function, on the front end I am trying to display all possible posts with all possible likes and comments, with all the comments also having likes. And obviously the name of the user that made the comment -
let posts = await Post.find({})
.sort('-createdAt')
.populate('user')
.populate({
path: 'comments',
populate: {
path: 'user'
},
populate: {
path: 'likes'
}
}).populate('comments')
.populate('likes');
But in the front end, I am not able to display the User Name that made a particular comment.
Please tell the error.
I want to do a big project API where people can login with Google, send the token and when logged in do some actions saved to Mongo DB.
The problem is the tables structure, or schema. So, I want to do a good app scalable.
I have some tables like Users (with users loggin information) and I want user save his tasks, memories, works and more for him self, and when logged in in another device, get this information and modify.
Do I need to do every table for every user or use same table filtered by user?
For example, I have now this model for product:
const ProductoSchema = Schema({
nameOfProduct: {
type: String,
require: [ true, 'Required name' ],
unique: true
},
state: {
type: Boolean,
default: true,
required: true
},
userOwner: {
type: Schema.Types.ObjectId,
ref: 'Usuario',
required: true
},
priece: {
type: Number,
default: 0
},
category: {
type: Schema.Types.ObjectId,
ref: 'Category',
required: true
},
description: {
type: String
},
disponibility: {
type: Boolean,
default: true
},
img: {
type: String
},
});
Is this correct or this is not scalabe and I need to do all tables for every user?
I have a database named "reviews" with a 9.7GB size. It has a collection name products. I was able to optimize the READ request using indexing technical by running the command db.products.ensureIndex({product_name: 1}); When I run the following command db.products.find({product_name:"nobis"}).explain("executionStats"); in MongoDB terminal, it shows that my execution time reduces from 28334ms to 3301ms.
I have the following 2 questions:
1) How do I use explain("executionStats"); on CREATE, PUT and DELETE requests? For example, I got this following error [thread1] TypeError: db.products.insert(...).explain is not a function when I tried to use the following insert function
db.products.insert({"product_id": 10000002,"product_name": "tissue","review": [{"review_id": 30000001,"user": {"user_id": 30000001,"firstname": "Peter","lastname": "Chen","gender": "Male","nickname": "Superman","email": "hongkongbboy#gmail.com","password": "123"},"opinion": "It's good","text": "It's bad","rating_overall": 3,"doesRecommended": true,"rating_size": "a size too big","rating_width": "Slightly wide","rating_comfort": "Uncomfortable","rating_quality": "What I expected","isHelpful": 23,"isNotHelpful": 17,"created_at": "2007-10-19T09:03:29.967Z","review_photo_path": [{"review_photo_id": 60000001,"review_photo_url": "https://sdcuserphotos.s3.us-west-1.amazonaws.com/741.jpg"}, {"review_photo_id": 60000002,"review_photo_url": "https://sdcuserphotos.s3.us-west-1.amazonaws.com/741.jpg"}]}, {"review_id": 30000002,"user": {"user_id": 30000002,"firstname": "Peter","lastname": "Chen","gender": "Male","nickname": "Superman","email": "hongkongbboy#gmail.com","password": "123"},"opinion": "It's good","text": "It's bad","rating_overall": 3,"doesRecommended": true,"rating_size": "a size too big","rating_width": "Slightly wide","rating_comfort": "Uncomfortable","rating_quality": "What I expected","isHelpful": 23,"isNotHelpful": 17,"created_at": "2007-10-19T09:03:29.967Z","review_photo_path": [{"review_photo_id": 60000003,"review_photo_url": "https://sdcuserphotos.s3.us-west-1.amazonaws.com/741.jpg"}]}]}).explain("executionStats");
2) Is there any performance Optimization method I can use for the CREATE, PUT and DELETE requests? For example, I am able to use POSTMAN to get the response time of a DELETE request, but the response time takes 38.73seconds.
const deleteReview = (request, response) => {
const id = parseInt(request.params.id);
Model.ProductModel.findOneAndDelete({ "review.review_id": id}, (error, results) => {
if (error) {
response.status(500).send(error);
} else {
response.status(200).send(results);
}
});
};
This is my MongoDB schema:
const mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/reviews', { useNewUrlParser: true, useUnifiedTopology: true, useCreateIndex: true });
const Schema = mongoose.Schema;
const productSchema = new Schema({
product_id: { type: Number, required: true, unique: true },
product_name: { type: String, required: true, unique: true },
review: [{
review_id: { type: Number, required: true, unique: true },
user: {
user_id: { type: Number },
firstname: { type: String },
lastname: { type: String },
gender: { type: String, enum: ['Male', 'Female', 'Other'] },
nickname: { type: String },
email: { type: String, required: true },
password: { type: String, required: true },
},
opinion: { type: String, required: true },
text: { type: String },
rating_overall: { type: Number, min: 1, max: 5, required: true },
doesRecommended: { type: Boolean, required: true },
rating_size: { type: String, enum: ['a size too small', '1/2 a size too small', 'Perfect', '1/2 a size too big', 'a size too big'], required: true },
rating_width: { type: String, enum: ['Too narrow', 'Slightly narrow', 'Perfect', 'Slightly wide', 'Too wide'], required: true },
rating_comfort: { type: String, enum: ['Uncomfortable', 'Slightly uncomfortable', 'Ok', 'Comfortable', 'Perfect'], required: true },
rating_quality: { type: String, enum: ['Poor', 'Below average', 'What I expected', 'Pretty great', 'Perfect'], required: true },
isHelpful: { type: Number, required: true, default: 0 },
isNotHelpful: { type: Number, required: true, default: 0 },
created_at: { type: Date, required: true },
review_photo_path: [{
review_photo_id: { type: Number },
review_photo_url: { type: String }
}]
}]
});
const ProductModel = mongoose.model('product', productSchema);
module.exports = { ProductModel };
If you do not have one, ensure you have an index of review.review_id on your products collection. You're using that to look up what to delete so it should be indexed.
I read your deleteReview function as deleting the product document that contains the review, not just removing the individual review -- is that what you expect?
You should be able to just $pull the review from the reviews array to get rid of it.
You can use explain on an update like so:
db.products.explain().update({...}, {...});
See: https://docs.mongodb.com/manual/reference/method/db.collection.explain/
You can explain:
aggregate()
count()
find()
remove()
update()
distinct()
findAndModify()
I'm sorry if this might be a duplicate question but I'm quite having a hard time understanding Mongoose. I am working on a Node.js project that implements Mongoose and MongoDB. What I want to accomplish is to modify and save some users' data through a call from a specific endpoint.
Mongoose Schema looks like this
var UserSchema = new Schema({
isAdmin: {type: Boolean, default: false},
name: String,
surname: String,
nickname: { type: String },
email: { type: String, lowercase: true, required: true, trim: true, unique: true, dropDubs: true },
password: { type: String, required: true },
salt: { type: String },
verified: { type: Boolean, default: false },
bio: {
type: { type: String, enum: [0,1] }, // 0='Appassionato', 1='Giocatore'
birthday: String,
height: Number,
number: Number,
role: { type: String, enum: [0,1,2,3] }, // 0='Playmaker', 1='Ala', 2='Guardia', 3='Centro'
team: String,
city: String,
aboutMe: String,
},
newsletter: {type: Boolean, default: false},
lastCheckin: {type: mongoose.Schema.Types.ObjectId, ref: 'Checkin'},
follows: [{type: mongoose.Schema.Types.ObjectId, ref: 'Structure'}],
score: { type: Number, default: 0 },
profilePicture: String,
lastLogin: {type: Date},
facebook: {
id: String,
accessToken: String,
profileImage : String
}
}, {
collection: 'users',
retainKeyOrder: true,
timestamps: true,
}).plugin(mongoosePaginate);
Following is the code for when the endpoint gets interrogated
exports.updateUser = (req,res) => {
var userId = req.params.userId;
var updates = req.body;
User.findOneAndUpdate({_id: userId}, {$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}.....
So I've been at this for awhile and can't see how my code is different from the documentation.
I've also checked out this question, this question, this question, and this unanswered different question.
For my admin panel I'm trying to query to get all the information associated with a user and display a 'master' user profile to the admin.
My User model looks like this:
module.exports = {
autoPK: true,
attributes : {
id: {
type: 'integer',
primaryKey: true,
unique: true
},
email : {
type : 'email',
unique : true,
required : true,
},
password : {
type : 'string',
minLength : 8,
required : true
},
admin:{
type: 'bool'
},
user_profile:{
collection: 'userprofile',
via: 'user_id',
},
properties: {
collection: 'subjectproperties',
via: 'user_id'
},
employment_info: {
collection: 'employmentinfo',
via: 'user_id'
},
file_uploads: {
collection: 'fileupload',
via: 'user_id'
},
nearest_living_relatives:{
collection: 'nearestlivingrelative',
via: 'user_id'
},
mortgage_info: {
collection: 'mortgageinfo',
via: 'user_id'
},
user_progression_state:{
collection: 'userprogressionstate',
via: 'user_id'
},
users_applied_loan_values:{
collection: 'usersappliedloanvalues',
via: 'user_id'
}
}
}
I don't want to list out all the belongs to user models cause there are a lot of them, but here is one of the simpler one's.
EmploymentInfo.js
module.exports = {
tableName: "employment_info",
attributes : {
employers_name:{
type: 'string',
required: true
},
employers_address:{
type: 'string',
required: true
},
employers_city:{
type: 'string',
required: true
},
employers_state:{
type: 'string',
required: true
},
employers_zip:{
type: 'string',
required: true
},
job_position:{
type: 'string',
required: true
},
years_in_position:{
type: 'string',
required: true
},
years_in_industry:{
type: 'integer',
required: true
},
user_id:{
model:'user'
}
}
};
And as for my controller:
create_admin_user_profile: function(req, res){
var user_id = req.query.userId;
User.find({'id': user_id}).populateAll().exec(function(err, user){
if(err || user.length === 0){
sails.log.verbose(err);
}else{
sails.log.verbose(user);
}
});
},
It doesn't error out but all I see in the terminal is this for the above:
[ { user_profile: [],
properties: [],
employment_info: [],
file_uploads: [],
nearest_living_relatives: [],
mortgage_info: [],
user_progression_state: [],
users_applied_loan_values: [],
id: 5,
email: 'test#test.com',
admin: 1 } ]
Even though there is an entry in all of those tables for that user.
If I change the line:
User.find({'id': user_id}).populateAll().exec(function(err, user){
To:
User.find({'id': user_id}).populate('employment_info').exec(function(err, user){
Same but shorter result:
[ { employment_info: [],
id: 5,
email: 'test#test.com',
admin: 1 } ]
I've tried changing the case, I've tried adding columnName to the user_id attribute, I've tried changing the column name across the entire breadth of the project to not have an under_score in it, though that never seemed to be issue in it picking up the names correctly, but nothing I've done seems to work. I've also tried uninstalling sails, and the sails-mysql adapter and clearing my npm cache.
At this point my just stuck, I really can't see a reason why it's not working.
As for project info:
Sails v: 0.12.11
npm v: 3.10.9
node v: 7.2.0
Additional info asked for in comments:
SQL row taken right from db for user 5
employers_name, employers_address, employers_city, employers_state, employers_zip, job_position, years_in_position, years_in_industry, user_id
'Company', 'Mill Steet', 'SLC', 'Utah', '88888', 'Developer', '2', '2', '5'
And json format returned by find method in EmploymentInfo.js controller
{
"employmentInfo": {
"employers_name": "Company",
"employers_address": "Mill Steet",
"employers_city": "SLC",
"employers_state": "Utah",
"employers_zip": "88888",
"job_position": "Developer",
"years_in_position": "2",
"years_in_industry": 2,
"user": 5
}
}
The reason the last param is user and not user_id is because I rename it in the find method to serve the front-end mvc which also has the ability to work with associations. It's also why the JSON has the format it does.
Code from the find method that replaces user_id:
EmploymentInfo.find({'user_id': user_id}).exec(function(err, profile){
if(err || !profile.length){
return res.json(err);
}else{
res.status(200);
profile[0].user = profile[0].user_id;
delete profile[0].user_id;
res.send({'employmentInfo': profile[0]});
}
});
However I've tried not renaming it; I've also tried getting rid of my find override and just relying on the blueprint find method, neither of those worked either.