I’m trying to create a Todo-list app using (nodejs,ejs…) so for every todo I create a checkbox. If someone finishes his job and uses the button bin recycle to delete it, I save that using MongoDB but I’ve a problem when checking. When I reload the page this checked box disappears. In other w…
Tag: mongodb
mongoose.connect() is undefined
I’m trying to connect to my MongoDB using Mongoose and it gives me the following error. I get this Error Answer You should change 2 things: Change { mongoose } with mongoose Remove useNewUrlParser option. New version of Mongoose does not accept it as option and it will throw an error.
Destructuring a mongoose document
Using mongoose in my project, I ran into a problem. I want to find all documents that have such a key and value pair role: USER. I can get a list of documents, but I cannot get the values of specific fields from it, no matter how I try. Here is my code: The request definitely gets the document, because
React: Converting mongoDB date to human readable date
A document stored in MongoDB has a “createdAt” property, which contains a timestamp. Here we have an example of the timestamp: Considering this date is today, how can I reproduce the following behavior?: Display this date as “Today at 12:24 PM” Tomorrow, display this date as “Yes…
Expand a variable in a MongoDB aggregation pipeline
In a Typesctipt code, I would like to use a varible value in an aggregation pipeline in MongoDB; the problem is that the “keyToCheck” field is a variable that is set by the Typescript code and, therefore, can change based by many conditions. Is there a way to expand the variable “keyToCheck&…
How can I get the ObjectId from inserted item’s id in mongo db
result How do I get the id from the new ObjectId? Answer As you found out return object is acknowledged: true, insertedId: new ObjectId(“615c620b5fccd83152f4ad2f”) here insertedId is what you you need.But it is not not returned as a string value. So to convert it into string by using this will ret…
PouchDB – Call get() in function ( TypeError: cb is not a function )
I am trying to make a simple login system using PouchDB, but I have a problem when I want to call db.get() in my function logIn() In the console I get Uncaught (in promise) TypeError: cb is not a function is there a better option for this? Answer The error Uncaught (in promise) TypeError: cb is not a function…
mongodb collection uuid how to update?
How to create collection in mongodb with specific uuid or update the uuid ? Adding details: When I create a collection mongodb generate automatically uuid and if this is replicaSet the uuid is replicated to all SECONDARY members via the oplog: But I would like to know if there is an option this UUID to be cre…
In “mongosh”, how do I delete all databases without deleting the typical “admin”, “config”, or “local” databases?
What am I trying to do? I wrote a script called deleteDatabases.js and it’s supposed to delete all databases (besides “admin”, “config”, or “local”) when inside mongosh. I do not have access to mongo, only mongosh. What is the code that currently tries to do that? del…
¿Why can’t I concatenate two arrays in this query handler?
I am trying to merge arrays from a request to already existing arrays in a MongoDB database. When I printed the output of the request, the arrays did not merge. What seems to be the issue here? Answer concat() method Your result is the expected behavior of concat method. From MDN documentation: The concat() m…