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The unique Option is Not a Validator. A common gotcha for beginners is that the unique option for schemas is not a validator. It's a convenient helper for building MongoDB unique indexes. See the FAQ for more information.
13 de jul. de 2020 · Understanding `unique` in Mongoose. Jul 13, 2020. The unique option tells Mongoose that each document must have a unique value for a given path. For example, below is how you can tell Mongoose that a user's email must be unique. const mongoose = require('mongoose'); const userSchema = new mongoose.Schema({ email: { type: String,
You can think of a Mongoose schema as the configuration object for a Mongoose model. A SchemaType is then a configuration object for an individual property. A SchemaType says what type a given path should have, whether it has any getters/setters, and what values are valid for that path.
I have unique option for the msisdn and imsi. In some cases this condition is well respected. For the following mocha test: "use strict"; var app = require('../../app'); var http = require('http'); var request = require('supertest'); var mongoose = require('mongoose'); var should = require('should');
30 de jun. de 2021 · Mongoose implements the unique constraint by creating a MongoDB index on that field with the unique:true option. MongoDB enforces the unique option by not allowing the same value to be stored twice in the index .
const ShapesSchema = new mongoose.Schema({ name: { type: String, required: true }, user: { type: mongoose.Schema.Types.ObjectId, ref: 'User' } }) ShapesSchema.index({ name: 1, user: 1 }, { unique: true }) mongoose.model('Shapes', ShapesSchema) The idea was to create a compound index that was unique on name and user together.
A mongoose query can be executed in one of two ways. First, if you pass in a callback function, Mongoose will execute the query asynchronously and pass the results to the callback. A query also has a .then() function, and thus can be used as a promise. Executing. Queries are Not Promises. References to other documents. Streaming. Versus Aggregation
