mongoose-plugin-drop-duplicates
A simple plugin that enforces unique fields within documents by dropping existing duplications.
Install
npm install --save mongoose-plugin-drop-duplicates
Uaage
A special key dropDups
could be used to identify the fields you wish to be unique.
const Schema = mongoose.Schema;const schema = new Schema({ email: { type: String, dropDups: true }}); schema.plugin(require('mongoose-plugin-drop-duplicates')); const Subscription = mongoose.model('Subscription', schema); ... new Subscription({email: 'abc@example.com'}).save(); // successful...new Subscription({email: 'abc@example.com'}).save(); // also successful, but previous document is removed...Subscription.find({}) // only got one record with abc@example.com
Author
Jason Yu
License
ISC