subdocument

first time in Stackoverflow. I'm trying to run a date range query on an array collection but Mongo Shell returning irrelevant documents witch doesn't match my criteria. It doesn't matter i'm doing the query trough PHP drivers, Doctrine Mongodb Query-builder or Mongo Shell. Here is my query: db.deals.find( { "total_sold.created_at": { $gt: new ISODate("2014-03-05T00:00:00Z"), $lt: new ISODate("2014-03-05T23:59:00Z") } }).limit(1).pretty() And here is the result: { "_id" : "1241412fb99a11a0bc70032a2cb6059b", "total_sold" : [ { "some_field": "value", "created_at" : ISODate("2014-02-13T15:48:35Z")

I have the following document in the collection: "_id" : "2", "workspace" : [{ "name" : "1", "widgets" : [ ] },{ "name" : "2", "widgets" : [ ] },{ "name" : "3", "widgets" : [ ] },{ "name" : "4", "widgets" : [ ] } ]} How can I insert {id: "1", blabla: "blabla"} in "widgets" for the "name" 3? In comparison to a previous answer which just inserts everything into the root of the document, here is a correct way to do this with positional operator : db.t.update({ "_id" : "2", "workspace.name" : "3" },{ $push: { 'workspace.$.widgets' : { id: "2", blabla: "blabla" } } }); 来源： https://stackoverflow.com

I have a document that looks like this: { "_id" : ObjectId("56fea43a571332cc97e06d9c"), "sections" : [ { "_id" : ObjectId("56fea43a571332cc97e06d9e"), "registered" : [ "123", "e3d65a4e-2552-4995-ac5a-3c5180258d87" ] } ] } I'd like to remove the 'e3d65a4e-2552-4995-ac5a-3c5180258d87' in the registered array of only the specific section with the _id of '56fea43a571332cc97e06d9e' . My current attempt is something like this, but it just returns the original document unmodified. db.test.findOneAndUpdate( { $and: [ {'sections._id': ObjectId('56fea43a571332cc97e06d9e')}, {'sections.registered':

Would it be possible for an ObjectId in ModelA to reference a sub-document in modelB ? var C = new Schema({...}); var B = new Schema({c: [C]}); var A = new Schema({c: { type: ObjectId, ref: 'ModelB.ModelC' }); var Model_A = mongoose.model('ModelA', A); var Model_B = mongoose.model('ModelB', B); var Model_C = mongoose.model('ModelC', C); Yes it is possible, but you have a few options. Option 1: C as a Subdocument If you really want to use subdocuments, you don't need to create a separate model. You need to change your reference to the 'c' array. var C = new Schema({...}); var B = new Schema({c:

I am working with a MongoDB database whose collections model classes , students , subjects , and [academic] performance . Below are the Mongoose based schema and models: var mongoose = require('mongoose'); var Schema = mongoose.Schema; var ObjectId = Schema.Types.ObjectId; // SUBJECT collection var subjectSchema = new Schema({ name : { type: String, required: true }, category : { type: String, required: true } }); var Subject = mongoose.model('Subject', subjectSchema); // STUDENT collection var studentSchema = new Schema({ name : { type: String, required: true }, grade : { type: Number,