Tag: mongodb-query

Mongoose Subdocument in another Invalid Schema error

javascript mongodb mongodb-query mongoose-schema node.js

I have 2 separate files, one encapsulates the Slot Schema, and another for the Location Schema. I’m trying to have a field in the Slot Schema that references the location Schema. In a separate File: I get this error when I run : I’d really appreciate it if you’d help me figure out why the co…

MongoDb update with ElemMatch

javascript mongodb mongodb-query node.js nosql

I have a collection that has document structure like following: Mongo PlayGround As you can see, each document has basicDetails object and a tasks array. Each task contains some properties of its own and a subtasks array. I want to update subtasks’s description from ABC to XYZ where root level id is 1, …

Add field not in schema with mongoose

javascript mongodb mongodb-query mongoose node.js

I am trying to add a new field to a document, but this isn’t working: Creating my UserModel prototype: Then calling it This successfully updates any field as long as it exists, but it won’t add any new one. Answer You can add and remove fields in schema using option { strict: false } option: stric…

How to query a field in MongoDB with a boolean value and return a boolean whether it’s true or false

boolean-logic javascript meteor mongodb mongodb-query

Check my simple collection: What I want to do once a document is found, is to manipulate a DOM and show a <div class=”driving-tutorial> if the field canDrive value is false and hide it if the value is true Like this in meteor: Answer You could implement this logic with the findOne() method which f…

Find documents with array that doesn’t contains a specific value

javascript mongodb mongodb-query mongoose node.js

I have the following model: I am looking for a query that retrieves all the Persons that are not part of a certain Group (i.e the persons’ group array doesn’t contain the id of the specified group). I was thinking about something like this, but I’m not sure it is correct: Person.find({groups…

Mongoose find/update subdocument

javascript mongodb mongodb-query mongoose node.js

I have the following schemas for the document Folder: So, for each Page I can have many permissions. In my CMS there’s a panel where I list all the folders and their permissions. The admin can edit a single permission and save it. I could easily save the whole Folder document with its permissions array,…