Model.discriminator()

Parameters

• name «String» discriminator model name

• schema «Schema» discriminator model schema

• [value] «String» the string stored in the discriminatorKey property. If not specified, Mongoose uses the name parameter.

Returns:

• «Model» The newly created discriminator model

Adds a discriminator type.

Example:

function BaseSchema() {
  Schema.apply(this, arguments);
  this.add({
    name: String,
    createdAt: Date
  });
}
util.inherits(BaseSchema, Schema);
const PersonSchema = new BaseSchema();
const BossSchema = new BaseSchema({ department: String });
const Person = mongoose.model('Person', PersonSchema);
const Boss = Person.discriminator('Boss', BossSchema);
new Boss().__t; // "Boss". `__t` is the default `discriminatorKey`
const employeeSchema = new Schema({ boss: ObjectId });
const Employee = Person.discriminator('Employee', employeeSchema, 'staff');
new Employee().__t; // "staff" because of 3rd argument above