From 0335578a9cd6528ac2bc1f2325e8a4400c68df1c Mon Sep 17 00:00:00 2001
From: Valeri Karpov <val@karpov.io>
Date: Tue, 6 Oct 2020 16:26:44 -0400
Subject: [PATCH] fix(mongoose): allow setting `autoCreate` as a global option
 to be consistent with `autoIndex`

Fix #9466
---
 lib/index.js        | 1 +
 lib/model.js        | 5 ++---
 lib/validoptions.js | 1 +
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/lib/index.js b/lib/index.js
index b76b831b848..fccb625bd62 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -166,6 +166,7 @@ Mongoose.prototype.driver = require('./driver');
  * - 'typePojoToMixed': true by default, may be `false` or `true`. Sets the default typePojoToMixed for schemas.
  * - 'maxTimeMS': If set, attaches [maxTimeMS](https://docs.mongodb.com/manual/reference/operator/meta/maxTimeMS/) to every query
  * - 'autoIndex': true by default. Set to false to disable automatic index creation for all models associated with this Mongoose instance.
+ * - 'autoCreate': Set to `true` to make Mongoose call [`Model.createCollection()`](/docs/api/model.html#model_Model.createCollection) automatically when you create a model with `mongoose.model()` or `conn.model()`. This is useful for testing transactions, change streams, and other features that require the collection to exist.
  *
  * @param {String} key
  * @param {String|Function|Boolean} value
diff --git a/lib/model.js b/lib/model.js
index 2295e0437de..0c1e8ccb701 100644
--- a/lib/model.js
+++ b/lib/model.js
@@ -1236,9 +1236,8 @@ Model.init = function init(callback) {
   const Promise = PromiseProvider.get();
   const autoIndex = utils.getOption('autoIndex',
     this.schema.options, this.db.config, this.db.base.options);
-  const autoCreate = this.schema.options.autoCreate == null ?
-    this.db.config.autoCreate :
-    this.schema.options.autoCreate;
+  const autoCreate = utils.getOption('autoCreate',
+    this.schema.options, this.db.config, this.db.base.options);
 
   const _ensureIndexes = autoIndex ?
     cb => this.ensureIndexes({ _automatic: true }, cb) :
diff --git a/lib/validoptions.js b/lib/validoptions.js
index 6e50ec6b69d..510d7e277e7 100644
--- a/lib/validoptions.js
+++ b/lib/validoptions.js
@@ -8,6 +8,7 @@
 const VALID_OPTIONS = Object.freeze([
   'applyPluginsToChildSchemas',
   'applyPluginsToDiscriminators',
+  'autoCreate',
   'autoIndex',
   'bufferCommands',
   'cloneSchemas',