var questions = [ { number: ‘1’, text: ‘question_1’ }, { number: ‘2’, text: ‘question_2’ }, { number: ‘3’, text: ‘question_3’ }, ]; res.send(result, { questions: questions}); In the code above instead of initializing an empty array, I am assuming that I have a pre defined array of questions. In the res.send() part of the … Read more
As you can read on the website you linked, a Free PostgreSQL database is limited to 10K (ten thousand) rows. The free “Sandbox” MongoDB option has no document limit, but a size limit of 496 MB. A single MongoDB document can be anywhere between a few bytes and 16MB. 2 solved What is the maximum … Read more
I figured out the reason for ArgumentError: uncaught throw “Error in record 314675: undefined method ‘[]’ for nil:NilClass’ was primarily from an incomplete set of input variables that is required by the def init method. Because this was an ArgumentError that was thrown from the function1 method, I was only invested in debugging function1. The … Read more
The $redact operator of the aggregation framework is your best option: db.collection.aggregate([ { “$redact”: { “$cond”: { “if”: { “$lt”: [ { “$add”: [ “$b”, “$c” ] }, 5 ] }, “then”: “$$KEEP”, “else”: “$$PRUNE” } }}, { “$project”: { “_id”: 0, “a”: 1 } } ]) The logical condition is made via $lt on … Read more
you need to install mongoose from npm by this command: npm install –save mongoose then,include following line of code: var mongoose = require( ‘mongoose’ ); var db = mongoose.createConnection(‘mongodb://localhost:27017/dbname’); db.on(‘connected’, function () { logger.info(‘Mongoose connection open to master DB – ‘+ ‘mongodb://localhost:27017/dbname’); }); module.exports = db; 1 solved NodeJS MongoDB Connection
When you extend from Repository you have to provide two generics: The type of the model (postJob) The type of the ID (field with @Id) annotation In your case the @Id annotated field is a long, while your repository extends from Repository<postJob, String>. This causes trouble, because now Spring is unable to find a findOne() … Read more
MongoDump. I used it to export my database to a separate server and it can also be used to take backups, otherwise to safely store data on remote servers look up sharding or replication. Further reading: backup strategies. 0 solved How to backup my mongoDB documents?
http://mongoosejs.com/docs/populate.html elaborates with a very nice example. I have extracted the gist here for you { var personSchema = Schema({ _id : Number, name : String, age : Number, stories : [{ type: Schema.Types.ObjectId, ref: ‘Story’ }] }); var storySchema = Schema({ _creator : { type: Number, ref: ‘Person’ }, title : String, fans : … Read more
NodeJS is JS runtime built on Chrome V8 JavaScript engine. NodeJS uses event-driven, non-blocking I/O model – that makes it lightweight and efficient. NodeJS has a package system, called npm – it’s a largest ecosystem of open source libraries in the world. Current stable NodeJS version is v4.0.0 – it’s included new version of V8 … Read more
Use a helper to define what you want to iterate over — in this case, you could do something like return an array of objects that contain the first and second tasks you want to display: <template name=”whatever”> {{#each getTasksToIterate}} <div> {{> task firstTask}} {{> task secondTask}} </div> {{/each}} Then, in your helpers, define the … Read more
figured it out, set image as binary in model @RequestMapping(value = “/update”, method = RequestMethod.POST, consumes = “multipart/form-data”) public ResponseEntity<Payee> update(@RequestPart(“payee”) @Valid Payee payee, @RequestPart(“file”) @Valid MultipartFile image) throws IOException { // routine to update a payee including image if (image != null) payee.setImage(new Binary(BsonBinarySubType.BINARY, image.getBytes())); Payee result = payeeRepository.save(payee); return ResponseEntity.ok().body(result); } solved Post … Read more
Times in BSON are represented as UTC milliseconds since the Unix epoch (spec). Time values in Go have nanosecond precision. To round trip time.Time values through BSON marshalling, use times truncated to milliseconds since the Unix epoch: func truncate(t time.Time) time.Time { return time.Unix(0, t.UnixNano()/1e6*1e6) } … u := user{ Username: “test_bson_username”, Password: “1234”, UserAccessibility: … Read more
db.rendaxeducacao.aggregate([ {$math : {idh : 2000} // fiter only where idh=2000 }, {$group: { _id: 1, max_idheducacao : {$max : $idheducacao} // find max } }, {$project:{ // select cidade _id:0, cidade:1 } } ]) rendaxeducacao = collection solved How does this select in MongoDB [closed]
Though it should have been made more clear in your question, your output sample from source suggests that you are looking for: Total count of messages per “uid” Distinct count of values in “to” Distinct count of values in “from” Summary of counts per “hour” for each “uid” This is all possible in a single … Read more
You can get some inspiration for updating a document in the quick-tour documentation provided on the MongoDB site: http://mongodb.github.io/mongo-csharp-driver/2.5/getting_started/quick_tour/ Just look at the Updating Document section. But to save a click you can use the following code as an inspiration: // Setup the connection to the database var client = new MongoClient(“mongodb://localhost”); var database = … Read more