added global id option to disable id on schemas

lib/schema.js

@@ -434,8 +434,8 @@ Schema.prototype.pick = function(paths, options) {
 Schema.prototype.defaultOptions = function(options) {
   this._userProvidedOptions = options == null ? {} : utils.clone(options);
   const baseOptions = this.base && this.base.options || {};
-
   const strict = 'strict' in baseOptions ? baseOptions.strict : true;
+  const id = 'id' in baseOptions ? baseOptions.id : true;
   options = utils.options({
     strict: strict,
     strictQuery: 'strict' in this._userProvidedOptions ?
@@ -454,7 +454,7 @@ Schema.prototype.defaultOptions = function(options) {
     validateBeforeSave: true,
     // the following are only applied at construction time
     _id: true,
-    id: true,
+    id: id,
     typeKey: 'type'
   }, utils.clone(options));
 

lib/validoptions.js

@@ -15,6 +15,7 @@ const VALID_OPTIONS = Object.freeze([
   'bufferTimeoutMS',
   'cloneSchemas',
   'debug',
+  'id',
   'timestamps.createdAt.immutable',
   'maxTimeMS',
   'objectIdGetter',

test/index.test.js

@@ -1086,4 +1086,22 @@ describe('mongoose module:', function() {
       assert.deepEqual(res.toObject(), { answer: 42 });
     });
   });
+  describe('global id option', function() {
+    it('can disable the id virtual on schemas gh-11966', async function() {
+      const m = new mongoose.Mongoose();
+      m.set('id', false);
+
+      const db = await m.connect(start.uri);
+
+      const schema = new m.Schema({ title: String });
+
+      const falseID = db.model('gh11966', schema);
+
+
+      const entry = await falseID.create({
+        title: 'The IDless master'
+      });
+      assert.equal(entry.id, undefined);
+    });
+  });
 });

types/mongooseoptions.d.ts

@@ -79,6 +79,12 @@ declare module 'mongoose' {
     | stream.Writable
     | ((collectionName: string, methodName: string, ...methodArgs: any[]) => void);
 
+    /** 
+     * If `true`, adds a `id` virtual to all schemas unless overwritten on a per-schema basis. 
+     * @defaultValue true
+     */
+    id?: boolean;
+
     /**
      * If `false`, it will change the `createdAt` field to be [`immutable: false`](https://mongoosejs.com/docs/api/schematype.html#schematype_SchemaType-immutable)
      * which means you can update the `createdAt`.