I have 2 models:
Here is the User Model:
const userSchema = new mongoose.Schema({
email: { type: String, unique: true, required: true },
password: { type: String, required: true },
passwordResetToken: String,
passwordResetExpires: Date,
facebook: String,
twitter: String,
tokens: Array,
profile: {
name: String,
gender: String,
location: String,
website: String,
picture: String
}
}, { timestamps: true });
And here is the Revive Model:
const reviveSchema = new mongoose.Schema({
reviveShowName: {type: String, required: true},
reviveTitle: {type: String, required: true},
reviveCategory: {type: String, required: true},
reviveGoal: {type: Number, required: true},
revivePhoto: {type: String, required: true},
reviveVideo: {type: String},
reviveStory: {type: String},
author: {
id: {
type: mongoose.Schema.Types.ObjectId,
ref: "User"
},
name: String
}
}, { timestamps: true });
In the Revive model, I'm trying to the reference the author and get the author's id and that works... How do I also get the name from profiles -> name...? Clearly name: String is wrong...
Mongoose relations work, based on the ref and type value of the nested object. In your case you have associated the id property of author to point to the User model.
If you want to populate the author with the user information, you should just do :
author: {
type: mongoose.Schema.Types.ObjectId,
ref: "User"
}
Then in your query you just use populate
Revive.find({})
.populate( 'author' )
.exec( function( error, docs ) {
console.log( docs ); // will have `[{author:{profile:{...}}}]` data
} );
Related
first of all, I am a beginner and currently, I am working on a social media blog type.
Now, I have my userSchema and postSchema models:
USER MODEL
const userSchema = new mongoose.Schema({
name: {
type: String,
required: [true, 'Please insert your name'],
},
email: {
type: String,
required: [true, 'Please insert your email'],
unique: true,
lowercase: true, //transform into lowercase / not validator
validate: [validator.isEmail, 'Please provide a valid email'],
},
avatar: {
type: String,
},
role: {
type: String,
enum: ['user', 'admin'],
default: 'user',
},
password: {
type: String,
required: [true, 'Please provide a password'],
minLength: 8,
select: false,
},
passwordConfirm: {
type: String,
required: [true, 'Please confirm your password'],
validate: {
validator: function (el) {
return el === this.password;
},
message: 'Passwords are not the same',
},
},
passwordChangedAt: Date,
posts: [] // ???????????????
});
POST MODEL
const postSchema = new mongoose.Schema({
title: {
type: String,
required: [true, 'A post must have a title'],
},
author: {
type: String,
required: [true, 'A post must have a title'],
},
likes: {
type: Number,
default: 10,
},
comments: {
type: [String],
},
image: {
type: String,
},
postBody: {
type: String,
required: [true, 'A post must contain a body'],
},
createdAt: {
type: Date,
default: Date.now(),
select: false,
},
});
Now I don't know if it's the best approach but I was thinking of having a field in userSchema with the type of an array of postSchema so I will have for each user their own posts created. Can I do that? If not how I can achieve that?
Should I use search params fields to filter posts by the author? I am really confused how I should approach this situation. Thank you guys
Check out this example
const UserSchema = new mongoose.Schema({
username: String,
posts: [{
type: mongoose.Schema.Types.ObjectId,
ref: 'Post'
}]
})
const PostSchema = new mongoose.Schema({
content: String,
author: {
type: mongoose.Schema.Types.ObjectId,
ref: 'User'
}
})
const Post = mongoose.model('Post', PostSchema, 'posts');
const User = mongoose.model('User', UserSchema, 'users');
module.exports = { User, Post };
Credit: https://medium.com/#nicknauert/mongooses-model-populate-b844ae6d1ee7
Here actually I want to make the service collection that contain the array of references of the ratings. when a user rate a service than an element is pushed in the array containing reference of user , service ID no and the rating.
Service Model like this:
var ServiceSchema = new Schema({
user_id:{
type: String,
required: [true, 'please provide user id']
},
name: {
type: String,
required: [true, 'please enter your name']
},
rating : [{ type: Schema.Types.ObjectId, ref: 'rating' }],
});
Rating schema:
var RatingSchema = Schema({
S_id : { type: Schema.Types.ObjectId},
Rating : Number,
By : { type: Schema.Types.ObjectId}
});
user schema:
var UserSchema = new Schema({
id: {
type: String,
unique: true,
required: [true, 'please enter your id']
},
password: {
type: String,
required: [true, 'please enter your password']
},
name: {
type: String,
required: [true, 'please enter your name']
},
type: {
type: [{
type: String,
enum: ['visitor', 'seller']
}],
default: ['visitor']
},
});
and I have defined the export as:
module.exports = mongoose.model('user', UserSchema, 'users');
module.exports = mongoose.model('service', ServiceSchema, 'service');
module.exports = mongoose.model('rating', RatingSchema, 'rating');
I want to make a function called rate but I am not getting how to make it.
exports.rate = function(req, res) {
var curr_service = new Service(req.body, result);
new_service.save(function(err, service) {
if (err)
res.send(err);
res.json(service);
});
};
So far I have done this.
Can someone help me to understand what should I do now? because I haven't find that much about mongoose to add ref in array...
In my case. This error was happening because instead of putting {es_indexed: true} inside the object declaration, I was putting it in the object that was using. For example:
const Client: Schema({
name: {type: String, es_indexed: true},
address: {type: Adress, es_indexed: true} //Wrong, causing error
})
Adress: Schema({
address: {type: String},
zipCode: {type: Number}
})
The correct way to use, is putting es_indexed: true into primitive types inside "Adress" schema declaration.
const Client: Schema({
name: {type: String, es_indexed: true},
address: {type: Adress} //Right way
})
Adress: Schema({
address: {type: String, es_indexed: true},
zipCode: {type: Number, es_indexed: true}
})
I hope it was helpful
I have build a schema as follows:
const UserInfoSchema = new Schema({
email: { type: String, required: true, unique: true },
username: { type: String, required: true, unique: true },
userId: { type: Schema.Types.ObjectId, ref: 'User'},
displayName: { type: String, required: true },
profilePic: {
filename: {type: String},
url: {type: String}
},
created_at: Date,
updated_at: Date
})
What I need here is once the fields such as email, username and userId are saved, should not be modified. Is there anything pre-build in mongoose for this kind of feature?
I have done some research on schema.pre('update', (next) => {}), but got nothing really useful/don't know if one can use for the mentioned feature. Any help on this matter is greatly appreciated. Thanks in advance.
There is an easier way
when you save the Schema, you can set the field as immutable, like this
const UserInfoSchema = new Schema({
email: { type: String, required: true, unique: true, immutable:true },
username: { type: String, required: true, unique: true, immutable:true },
userId: { type: Schema.Types.ObjectId, ref: 'User', immutable:true},
displayName: { type: String, required: true },
profilePic: {
filename: {type: String},
url: {type: String}
},
created_at: Date,
updated_at: Date
})
it won't throw any error, if you want it you should check it elsewhere, but when you try to modify the immutable fields, it wont be changed at all
for(const key in userUpdates) {
switch(key) {
case 'username':
case 'email':
throw new Error('These field/s cannot be changed anymore');
}
}
User.findByIdAndUpdate(id, userUpdates, { new: true, runValidators: true });
I want to display in my user/myarticlesview only articles by logged in user.
How can i do that:
Here is my User model and Article schema:
let userSchema = mongoose.Schema(
{
email: {type: String, required: true, unique: true},
passwordHash: {type: String, required: true},
salt: {type: String, required: true},
articles: [{type: ObjectId, ref: 'Article'}],
roles: [{type: ObjectId, ref: 'Role'}]
}
);
let articleSchema = mongoose.Schema (
{
author: {type: ObjectId, ref: 'User'},
title: {type: String, required: true },
content: {type: String, required: true },
phone: {type: Number, required: true },
date: {type: Date, default: Date.now() }
}
);
I want to do this in my userController and passed it to the view:
myArticlesGet: (req, res) => {
if (!req.isAuthenticated()) {
res.redirect('/');
return;
}
res.render('user/myarticles')
}
I cant figure it out how to make the query.Thank you.
As you are using express sessions you can store userId in the express session when the user is authenticated and then you can get user articles from user like that
User.find({_id: req.session.userId}).populate('articles')
I have 2 schemas:
var pollSchema = new mongoose.Schema({
title: String,
created: {
type: Date, default: Date.now
},
options: [{
label: String,
count: {
type: Number, default: 0
},
backgroundColor: {
type: String, default: '#fff'
}
}],
author:{
id:{
type: mongoose.Schema.Types.ObjectId,
ref: "User"
},
username: String
}
});
var userSchema = new Schema({
username: {type: String, unique:true},
email: {type: String, unique:true, lowercase: true},
password: String
});
Now each poll will store data of it's author.
Questions:
How can I redesign my schemas - so I will be able to find all the polls belong to particular user?
Or should I leave the schemas the same and find another approach?
you can still find all the polls belonging to a particular user . You have the author.id for that.
Also you can keep an array as var userSchema = new Schema({
username: {type: String, unique:true},
email: {type: String, unique:true, lowercase: true},
password: String,
polls: []
});
And every time a user polls, push the userId inside the polls array, which you can later populate or get the count.