i tried to search data using $regex with mongoose but its not working with Number field.
here is my model.js
var transactionsSchema = new Schema({
user : Schema.Types.ObjectId,
amount : {type : Number}
});
here is my query
var condition = {
user:user,
amount:{ $regex: search}
};
Model.find(condition)..exec(function(err,res){
console.log(res);
});
i getting following error
Can't use $regex with Number.
then tried the following
var condition = {
user:user,
amount:{ "$where": "function() { return this.amount.toString().match(/"+search+"/) != null; }" }
};
Model.find(condition)..exec(function(err,res){
console.log(res);
});
its given following
Error: Can't use $where with Number.
now i changed my condition like this
var condition = {
user:user
}
condition["$where"] = "function() { return this.amount.toString().match(/"+search+"/) != null; }";
Model.find(condition)..exec(function(err,res){
console.log(res); //output []
});
its worked in mongo shell with accurate result but in mongoose query its return empty array
Related
The schema of my Sample model is:-
var nameSchema = new mongoose.Schema({
firstname:String,
lastname:String
})
var sampleSchema= new mongoose.Schema({
number: {
type: String
},
name :{
type : [nameSchema]
}
});
I am trying to update the first and last name by searching them by their number property by making use of Sample.findOne({number:number}). And i am performing the update operation in the following manner:-
module.exports.updateNumber = function(req, res){
var number= req.body.number;
var lname= req.body.lname;
var fname= req.body.fname;
Sample
.findOne({number:number})
.select('name')
.exec(function(err, doc){
console.log(doc)
var this_id;
var thisService = doc.name.id('this_id');
thisService.firstname=fname;
thisService.lastname=lname;
doc.save(function(err, update) {
if (err) {
res
.status(500)
.json(err);
} else {
res
res.render('done')
}
});
})
}
If i console log the output i got is:
{ _id: 5bc5d71f47ff14361c0639d1,
name:
[ { _id: 5bc5d71f47ff14361c0639d2,
firstname: 'firstname',
lastname: 'lastname' } ] }
Is there any way, i could store _id: 5bc5d71f47ff14361c0639d2 in 'this_id' variable, so that this updation would be possible
name is an array, so if you want the first _id then name[0]._id would suffice, if you want an array of all values for _id in name, then name.map((person) => person._id) would give you an array of _id
However, more details about the context of this object would help give a better answer.
I thought I could read my way to this solution, but I cant see what im doing wrong.
Here is my model:
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var inspectSchema = new Schema({
_id: Object, // Mongo ID
property: String, // Property ID
room: String, // The room Name
item: Array // The Items text
});
module.exports = mongoose.model('inspectModel', inspectSchema, 'inspect');
And here is where I try to insert or insertOne
var inspectModel = require('../../models/inspectModel');
var inspectTable = mongoose.model('inspectModel');
inspectTable.insert(
{
"property" : inspectRecord.property,
"room" : inspectRecord.room,
"item" : inspectRecord.item
},
function (err, res) {
if (err) { return reject({err:true, err:"addInspect ERROR" + err}) }
else {
show("=====RESOLVE addInspect=====")
return resolve();
}
})
I tried
inspectTable.insert
inspectModel.insert
inspectTable.insertOne
inspectModel.insertOne
No matter what I always get
TypeError: inspectTable.insert is not a function
I also tried just update with { upsert: true } but then the mongo ID becomes null.
Any ideas?
The method you're looking for is create:
inspectTable.create(
{
"property" : inspectRecord.property,
"room" : inspectRecord.room,
"item" : inspectRecord.item
}, ...
However, your schema definition of _id: Object is likely wrong. Just leave any definition of _id out of your schema and it will use the default ObjectId, which is likely what you want.
You can try this
var insert_table = new inspectTable(
{
"property" : inspectRecord.property,
"room" : inspectRecord.room,
"item" : inspectRecord.item
});
insert_table.save(function (err, res) {
if (err) { return reject({err:true, err:"addInspect ERROR" + err}) }
else {
show("=====RESOLVE addInspect=====")
return resolve();
}
});
Smashing my head into the keyboard over this.
Simply need to remove subdocument. Example below only has one item in OnCommands but there could be a many items there. I have tried find, findbyid, updatebyId, pull, one things after another. Tried by _id of subdoc and by generic searchinMost simple run without doing anything no errors.
I would be so greatful if you can show me what I am doing wrong, it's the last part of my code that isn't work.
Sample Data:
> db.EntryPoints.find({_id: ObjectId("569e4fabf1e4464495ebf652")}).pretty()
{
"__v" : 0,
"_id" : ObjectId("569e4fabf1e4464495ebf652"),
"name" : "bbbb",
"offCommands" : [ ],
"onCommands" : [
{
"data" : "11111",
"operation" : "on",
"command" : "ISY-HTTPGet",
"_id" : ObjectId("569e4faff1e4464495ebf653")
}
]
Model:
var mongoose = require('mongoose');
var Schema = mongoose.Schema,
ObjectId = Schema.ObjectId;
var onCommandsSchema = new Schema({
command: String
,operation: String
,data: String
})
var offCommandsSchema = new Schema({
command: String
,operation: String
,data: String
})
mongoose.model('onCommands', onCommandsSchema);
mongoose.model('offCommands', offCommandsSchema);
// create a schema
var EntryPointsSchema = new Schema({
name: String
,onCommands: [onCommandsSchema]
,offCommands: [offCommandsSchema]
,description: String
}, { collection: 'EntryPoints' });
mongoose.model('EntryPoints', EntryPointsSchema);
var EntryPoints = mongoose.model('EntryPoints');
module.exports = EntryPoints;
Node Post Code:
router.post('/webservices/removeCommand', function (req, res) {
var EntryPoints = require('../data_models/automate_entrypoints.js');
EntryPoints.update(
{ _id: ObjectId(req.body._id) }
, {
$pull: {
onCommands: { id_: req.body._id }
}
}
, function (err, ouput) { console.log("data:", numAffected) }
);
});
Your code won't work because of the query part of your update: you want to match on the embedded document's _id, not on the main document. So change it to
var EntryPoints = require('../data_models/automate_entrypoints.js');
EntryPoints.update(
{ "onCommands._id": req.body._id },
{
"$pull": {
"onCommands": { "_id": req.body._id }
}
},
function (err, numAffected) { console.log("data:", numAffected) }
);
I have an angular-fullstack app generated from angular-fullstack yeoman generator and I have a Query Model as follows:
'use strict';
var mongoose = require('mongoose'),
Schema = mongoose.Schema;
/**
* Discussion Question Schema
*/
var QuerySchema = new Schema({
date: {
type: Date,
default: Date
},
tags: [{
type: Schema.ObjectId,
ref: 'Tag'
}]
});
module.exports = mongoose.model('Query', QuerySchema);
var deepPopulate = require('mongoose-deep-populate')(mongoose);
and Tag has a field text. Now in my query controller I have to deep populate some other fields and paginate them so, I am trying something like this in the controller function:
exports.index = function(req, res) {
var escapeRegExpChars = function (text) {
return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
};
require('paginate-for-mongoose');
var limit,page;
if(req.query.limit != undefined) limit = req.query.limit;
else limit = 10;
if(req.query.page != undefined) page = req.query.page;
else page = 1;
var queryObj = {};
if(req.query.searchText != undefined && req.query.searchText != '')
queryObj['title']= new RegExp(escapeRegExpChars(req.query.searchText), 'i');
var options = {
perPage:limit,
delta:2,
page:page
};
if(req.query.fold !=undefined && req.query.fold != '') queryObj["tags.text"] = req.query.fold;
var query = Query.find(queryObj).populate('tags','text').deepPopulate('user class user.class');
query.paginate(options,function(err, resp){
if(err) { return handleError(res, err); }
if(req.query.fold) console.log(resp.results);
return res.status(200).json(resp.results);
});
};
How do I search queries with tags.text value exactly as the req.query.fold value?
MongoDB doesn't support joins so to search on a linked doc you have to do it in two steps:
// First look up the _id of the tag
Tags.findOne({text: req.query.fold}, function(err, tag) {
if (tag) {
// Add a match in the doc's tags array to the tag's _id
queryObj.tags = tag._id;
var query = Query.find(queryObj)...
...
}
});
I have 2 schemas 1st is city and second is pincode. Pincode having reference of city. They both look like this
CITY schema
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
// create a all city list
var allCitySchema = new Schema({
cities: {
type: String
}
}, {collection: 'allcities'});
var allcities = mongoose.model('allcities', allCitySchema);
module.exports = allcities;
Pincode schemas
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var allPincode = new Schema({
city_id: {
type: Schema.ObjectId,
ref: 'allcities'
},
pincode: {
type: String
}
}, {collection: 'pincode'});
var allPincode = mongoose.model('pincode', allPincode);
module.exports = allPincode;
Now the problem is when i tried to fetch all pincode based upon city id for that i tries like this
app.post('/api/getPincodeByCity', function(req, res) {
console.log("In pincode");
var cities_id = [];
cities_id = req.body.cities_id;
console.log(req.body); // { cities_id: '["5597aa08c0a0beb40be128d4","5597aa2bbb18fefc142b6915"]' }
console.log(cities_id);
pincodes.findById( {city_id: { $in: cities_id }}, function(err,pincodeIds){
if(err) res.send(err.message);
res.send(pincodeIds);
res.end('{"success" : "Recieved Successfully", "status" : 200}');
});
});
But it's not working its giving me this error
Cast to ObjectId failed for value "[object Object]" at path "_id"
I also try with find() instead of findById() method but it giving me this error
undefined is not a function
The $in operator is not just "strictly" for querying arrays as that can be done with basically any operator for a singular value.
It's actually a "list of arguments" which evaluates to an $or condition, but with shorter syntax:
var idList = ["559e0dbd045ac712fa1f19fa","559e0dbe045ac712fa1f19fb"];
var pincode = mongoose.model('pincode');
pincode.find({ "city_id": { "$in": idList } },function(err,docs) {
// do something here
});
Which as mentioned is short form for this:
pincode.find(
{
"$or": [
{ "city_id": "559e0dbd045ac712fa1f19fa" },
{ "city_id": "559e0dbe045ac712fa1f19fb" }
]
},
function(err,docs) {
// do something here
}
)
You are getting an error because you are overwriting the "array" definition with a "string" which is what all "request" objects are unless parsed otherwise.
The other reason for the error is you are calling the wrong method. .findById() expects a single argument of the _id for the document. To query other fields use .findOne() or in this case .find() since an $in will possibly match more than one document.