feat(AutoIncrementID): support setting "AutoIncrementIDSkipSymbol" on…

… the connection

to allow being using with ".create" and on multiple documents

README.md

@@ -137,10 +137,19 @@ const doc = new Model();
 
 doc[AutoIncrementIDSkipSymbol] = true;
 await doc.save();
+
+// the symbol can also be set on the connection
+Model.db[AutoIncrementIDSkipSymbol] = true;
+await Model.create({ _id: something });
+// dont forget to unset it again
+Model.db[AutoIncrementIDSkipSymbol] = true;
+// or
+delete Model.db[AutoIncrementIDSkipSymbol];
 ```
 
 Note: `AutoIncrementIDSkipSymbol` can also be set inside hooks, but hooks might be called before others. 
-Note: `AutoIncrementIDSkipSymbol` cannot be used for `.create`, because `AutoIncrementIDSkipSymbol` works on the current document and `.create({ [AutoIncrementIDSkipSymbol]: true })` will not transfer symbols to the document
+Note: `AutoIncrementIDSkipSymbol` cannot be used for `.create` (unless set via connection), because `AutoIncrementIDSkipSymbol` works on the current document and `.create({ [AutoIncrementIDSkipSymbol]: true })` will not transfer symbols to the document. 
+Note: if `AutoIncrementIDSkipSymbol` is set to `false` on either method, no modification will be done
 
 #### incrementBy
 

src/autoIncrement.ts

@@ -166,6 +166,14 @@ export function AutoIncrementID(schema: mongoose.Schema<any>, options: AutoIncre
  return;
  }
 
+ const ownerDocDb = this.db ?? (this as any).ownerDocument().db;
+
+ if (typeof ownerDocDb[AutoIncrementIDSkipSymbol] == 'boolean' && ownerDocDb[AutoIncrementIDSkipSymbol]) {
+ logger.info('Symbol "AutoIncrementIDSkipSymbol" is set on the connection to "true", skipping');
+
+ return;
+ }
+
  const leandoc = await model
  .findOneAndUpdate(
  {

test/basic.test.ts

@@ -543,6 +543,57 @@ describe('Basic Suite', () => {
  expect(foundTracker.count).toEqual(1n);
  });
 
+ it('should support skipping with symbol on the connection', async () => {
+ const schema = new mongoose.Schema({
+ _id: Number,
+ somefield: Number,
+ });
+ schema.plugin(AutoIncrementID, {});
+ const model = mongoose.model('AutoIncrementID-SomeModel-skiptest-connection', schema);
+
+ // test initial 0
+ {
+ const doc = await model.create({ somefield: 10 });
+ expect(doc.somefield).toBe(10);
+ expect(doc._id).toBe(0);
+
+ await doc.save();
+ expect(doc.somefield).toBe(10);
+ expect(doc._id).toBe(0);
+ }
+
+ // test add 1
+ {
+ model.db[AutoIncrementIDSkipSymbol] = true;
+ const doc = await model.create({ _id: 300, somefield: 20 });
+ // IMPORTANT: this has to be unset again so that the next ones are not also affected
+ delete model.db[AutoIncrementIDSkipSymbol];
+ expect(doc.somefield).toBe(20);
+ expect(doc._id).toBe(300);
+
+ await doc.save();
+ expect(doc.somefield).toBe(20);
+ expect(doc._id).toBe(300);
+ }
+
+ // test add another 1
+ {
+ const doc = await model.create({ somefield: 30 });
+ expect(doc.somefield).toBe(30);
+ expect(doc._id).toBe(1);
+
+ await doc.save();
+ expect(doc.somefield).toBe(30);
+ expect(doc._id).toBe(1);
+ }
+
+ const trackerModel = mongoose.connection.models['identitycounter'];
+ expect(Object.getPrototypeOf(trackerModel)).toStrictEqual(mongoose.Model);
+
+ const foundTracker = await trackerModel.findOne({ modelName: model.modelName }).orFail();
+ expect(foundTracker.count).toEqual(1n);
+ });
+
  it('should throw a error if "overwriteModelName" is a function but returns a empty string', async () => {
  let fcalled = 0;