Here's the schema:
var RdvSchema = new Schema({
_idRdv: Schema.Types.ObjectId,
patient:{type: Schema.Types.Mixed, ref:'Patient'} ,
pro: {type: Schema.Types.Mixed, ref:'Pro'},
motif: {type: Schema.Types.Mixed, ref: 'Pro'},
domicile:{type: Schema.Types.Mixed, ref: 'Pro'},
}
Here's the data:
var rdv1 = new Rdv({
_idRdv: new mongoose.Types.ObjectId(),
patient: patient1.name,
pro: pro1.name,
motif: pro1.Consultation.Motif,
domicile: pro1.Consultation.Domicile
});
And here's the shell:
MongoDB Enterprise > db.rdvs.find().pretty()
{
"_id" : ObjectId("59c28817f81e91061044ddc7"),
"_idRdv" : ObjectId("59c28817f81e91061044ddc6"),
"patient" : "Maxime",
"pro" : "Ben",
"domicile" : true,
"__v" : 0
How can I prevent this : "_id" : ObjectId("59c28817f81e91061044ddc7") from happening?
"_id" is the unique identifier for any mongodb document. You cannot make it not generated in a document.
But you can remove it in your output of the find as below:
db.rdvs.find({}, {'_id': False}).pretty()
Related
postSchema
let postSchema = new mongoose.Schema({
data : Buffer,
contentType : String,
caption : String,
likes : [mongoose.ObjectId],
likesCount : {type :Number, default : 0},
comment :[{userId :mongoose.ObjectId, cmnt : String, reply :[{}]}],
commentCount : {type :Number, default : 0},
date : {type : Date, default: Date.now}
})
userSchema
let userSchema = new mongoose.Schema({
qr : {
data : Buffer,
contentType : String
},
profile_pic:{
data:Buffer,
contentType : String
},
first_name:String,
last_name:String,
email:{
type:String,
unique:true
},
mobile_number:Number,
DOB : Date,
gender:{
type : String,
enum : ["Male","Female","Other"]
},
password : {
type : String
},
address:{
city : String,
state : String
},
followers : {
type : [mongoose.ObjectId]
},
followersCount : {
type : Number,
default : 0
},
following : {
type : [mongoose.ObjectId]
},
followingCount : {
type : Number,
default : 0
},
//this is my post schema
posts : [postSchema],
postsCount :{type :Number, default : 0},
reset_password_token : {
OTP:Number,
is_varify_password_token : {
type:Boolean,
default : false
},
time : {
type : Date,
}
}
})
** 1) i want to find specific user
2) after finding user i want to find and update specific post (caption) in array of posts **
i have tried but not working
await USERMODEL.findOneAndUpdate({_id:req.user._id,posts:{$elemMatch:{_id: req.params.postId}}},{"posts.$.caption ":caption})mongodb document image
PLEASE HELP I AM NEW TO MONGODB
**by mistake I have pasted some code out of block please do not mind **
It looks like your post is mostly code; please add some more details
Is there a way to "get" the value a document's field in the subdocuments?
book_id is in the main document,how to get the value of it here
'''
const ExtraElements_Schema = new Schema({
label : {type : String, requires : true},
page : {type : Number},
id_resource : {type : Number, required : true},
description : {type : String}
},{toJSON : {virtuals : true , getters : true}})
ExtraElements_Schema.virtual('path').get(function(){
const host = global.gConfig.thisServerHost;
return `${host}/${this.book_id???}/${this.id_resource}`
})
const Extra_Schema = new Schema({
label : {type : String, required : true},
book_id : {type : Number},
id_extra : {type : Number, required : true},
extras : [ExtraElements_Schema]
})
You can use virtuals for this too.
ExtraElements_Schema.virtual('book', {
ref: bookTableName,
localField: 'book_id',
foreignField: '_id', // Change this if it's not the id that is saved
justOne: true
});
And one thing that bugged me a little I couldn't see the virtuals with console.log I should always use console.log(model.toJSON()) to see the virtuals
I have a mongoose schema like this.
var schema = new mongoose.Schema({
t: {type: Date, required: true},
o: {type: String, required: true},
d: {type: mongoose.Schema.Types.Mixed, required: true}
}
the objects in mongoDb are like this.
{
"_id" : ObjectId("5d36948b7f40460dd0d28934"),
"t" : ISODate("2019-07-23T05:00:59.518Z"),
"o" : "u",
"d" : {
"room" : "5c0508cd12e0fc3310a8ba00",
"noOfTimesSwapped" : 4,
"modifiedAt" : "2019-07-23T05:00:59.517Z",
"modifiedBy" : "5c73d5f2e4c2754e0cd5246a",
"p" : {
"_id" : "5d35bac67660ad2dd8fbb57d"
}
}
}
I want to get the records which matches with the _id of the 'p' field which is a property of d.
I have tried to get records using the following criteria, but that does not work.
MyModel.find({ 'd.p._id': id }, function (err, docs) {});
I want the output to be like this
var FeedSchema = new Schema({
timestamp : {type : String, required : true},
feed_type_code : {type : Number, required : true},
gender : {type : String, required : true},
feed_item : Article || Tip || etc.
}
Hence, I understand I have to use discriminators. I followed the following SO answer
Here is what I did:
var feed_type = {discriminatorKey : 'feed_item'};
var FeedSchema = new Schema({
timestamp : {type : String, required : true},
feed_type_code : {type : Number, required : true},
gender : {type : String, required : true}
}, feed_type);
var TipSchema = new Schema({
tip : {type : String, required : true},
subtip : {type : String, required : true},
display_count : {type : Number},
likes : {type : Number}
}, feed_type);
var ArticleSchema = new Schema({
title : {type : String, required : true},
english_title : {type : String, required : true},
image_url : {type : String, required : true},
article_text : {type : String, required : true},
english_article_text : {type : String},
author : {type : String},
english_author : {type : String}
}, feed_type);
Here is how I am saving the document:
var article = new Article({
title : req.body.title,
english_title : req.body.english_title,
image_url : req.body.image_url,
article_text : req.body.article_text,
english_article_text : req.body.english_article_text,
author : req.body.author,
english_author : req.body.english_author
});
var feed = new Feed({
gender : req.body.gender,
timestamp : moment().valueOf(),
feed_type_code : 9002,
feed_item : article
});
feed.save(function(err, doc){
if(err){
res.json({success : -1});
return;
}
res.json({success : 1, feed : doc});
});
I am not getting the article output for this:
{
"success": 1,
"feed": {
"__v": 0,
"gender": "female",
"timestamp": "1481460218959",
"feed_type_code": 9002,
"_id": "584d49faa6ff3a23bc868ab3"
}
}
I am new to Nodejs. I would appreciate if you can point out the error.
in the model file add these lines
var Feed = mongoose.model('Feed', FeedSchema, 'feed');
var Article = Feed.discriminator('Article', ArticleSchema);
var Tip = Feed.discriminator('Tip', TipSchema);
module.exports = {
Feed : Feed,
Article : Article,
Tip : Tip
}
This is how you save the document. You don't need to create a separate Feed object.
var article = new Article({
gender : req.body.gender,
timestamp : moment().valueOf(),
feed_type_code : 9002,
title : req.body.title,
english_title : req.body.english_title,
image_url : req.body.image_url,
article_text : req.body.article_text,
english_article_text : req.body.english_article_text,
author : req.body.author,
english_author : req.body.english_author
});
article.save(function(err, doc){
if(err){
console.log(err);
res.json({success : -1});
return;
}
res.json({success : 1, feed : doc});
});
I have the following schemas in mongoose:
var documentsSchema = new Schema({
"document" : {
"_project" : {
type : Schema.ObjectId,
ref : 'Projects'
},
"_addedBy" : {
type : Schema.ObjectId,
ref : 'Users'
},
"_associateUsers" : [{
type : Schema.ObjectId,
ref : 'Users'
}],
"_codes" : [{
type : Schema.ObjectId,
ref : 'Codes'
}],
"paragraphTitle" : String,
"paragraphText" : String,
"memos" : [
{
"_addedBy" : {
type: Schema.Types.ObjectId,
ref: 'Users'
},
"memoData" : String
}
]}});
and the Codes:
var codesSchema = new Schema({
"code" : {
"_addedBy" : {
type : Schema.ObjectId,
ref : 'Users'
},
"codeText" : String,
"codeWeight" : Number
}});
I need to populate _codes.codeText (or codes fields) of the all elements of the array, but looks like I am not doing it properly.
Documents.find({
"document._project": element._id
}).
populate('document._codes.code','codeText').
exec(function (err, result) { .... }
this and various tries with populate arguments are either not populating the fields or not returning any data.
What am I doing wrong?
You have defined the schema, but not the model. The _codes has a ref to the model Codes but it doesn't exists. When you call .populate with the first two params it assumes that the model is Codes (taked from reference)
To fix this, toy need to add:
mongoose.model('Codes', codesSchema);
mongoose.model('Documents', documentsSchema);
Maybe you need to do the same with Users
See the complete documentation for populate here
P.S. A recommendation: If you are defining an schema for codes or whatever you don't need to define again the name of the object as part of the same schema, look:
From this
//your style
var catsSchema = new Schema({
"cat" : {
"attr1" : {type: ...},
"attr2" : {type: ...}
}
});
to this
//obviously attr1 and attr2 are part of cat object/document
var catsSchema = new Schema({
"attr1" : {type: ...},
"attr2" : {type: ...}
});