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POHow do I update/upsert a document in Mongoose?
 

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  1. POHow do I update/upsert a document in Mongoose?
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    <p>Perhaps it's the time, perhaps it's me drowning in sparse documentation and not being able to wrap my head around the concept of updating in Mongoose :)</p> <p>Here's the deal: </p> <p>I have a contact schema and model (shortened properties):</p> <pre><code>var mongoose = require('mongoose'), Schema = mongoose.Schema; var mongooseTypes = require("mongoose-types"), useTimestamps = mongooseTypes.useTimestamps; var ContactSchema = new Schema({ phone: { type: String, index: { unique: true, dropDups: true } }, status: { type: String, lowercase: true, trim: true, default: 'on' } }); ContactSchema.plugin(useTimestamps); mongoose.model('Contact', ContactSchema); //is this line superflous?? var Contact = mongoose.model('Contact', ContactSchema); </code></pre> <p>I receive a request from the client, containing the fields I need and use my model thusly:</p> <pre><code>mongoose.connect(connectionString); var contact = new Contact({ phone: request.phone, status: request.status }); </code></pre> <p>And now we reach the problem:</p> <ol> <li>If I call <code>contact.save(function(err){...})</code> I'll receive an error if the contact with the same phone number already exists (as expected - unique)</li> <li>I can't call <code>update()</code> on contact, since that method does not exist on a document</li> <li>If I call update on the model:<br> <code>Contact.update({phone:request.phone}, contact, {upsert: true}, function(err{...})</code><br> I get into an infinite loop of some sorts, since the Mongoose update implementation clearly doesn't want an object as the second parameter.</li> <li>If I do the same, but in the second parameter I pass an associative array of the request properties <code>{status: request.status, phone: request.phone ...}</code> it works - but then I have no reference to the specific contact and cannot find out its <code>createdAt</code> and <code>updatedAt</code> properties.</li> </ol> <p>So the bottom line, after all I tried: given a document <code>contact</code>, how do I update it if it exists, or add it if it doesn't?</p> <p>Thanks for your time.</p>
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