Error when using onUpdate parameter on an entity embed object

[sawa-ko]

Describe the bug
I want to try to update the embedded object of an entity and when updating it, also update a value automatically with the onUpdate parameter, but mongodb throws an error when trying to do that.

Stack trace

2021-10-17 10:06:39 - ❌ - previous MongoError: Updating the path 'embed.field' would create a conflict at 'embed'
2021-10-17 10:06:39 - ❌ -     at Function.create (C:\Users\Kaname\Documents\Proyectos\Kaede\kaede-rewrite\node_modules\mongodb\lib\core\error.js:57:12)
2021-10-17 10:06:39 - ❌ -     at toError (C:\Users\Kaname\Documents\Proyectos\Kaede\kaede-rewrite\node_modules\mongodb\lib\utils.js:123:22)
2021-10-17 10:06:39 - ❌ -     at C:\Users\Kaname\Documents\Proyectos\Kaede\kaede-rewrite\node_modules\mongodb\lib\operations\common_functions.js:384:39
2021-10-17 10:06:39 - ❌ -     at handler (C:\Users\Kaname\Documents\Proyectos\Kaede\kaede-rewrite\node_modules\mongodb\lib\core\sdam\topology.js:944:24)
2021-10-17 10:06:39 - ❌ -     at C:\Users\Kaname\Documents\Proyectos\Kaede\kaede-rewrite\node_modules\mongodb\lib\cmap\connection_pool.js:350:13
2021-10-17 10:06:39 - ❌ -     at handleOperationResult (C:\Users\Kaname\Documents\Proyectos\Kaede\kaede-rewrite\node_modules\mongodb\lib\core\sdam\server.js:558:5)
2021-10-17 10:06:39 - ❌ -     at MessageStream.messageHandler (C:\Users\Kaname\Documents\Proyectos\Kaede\kaede-rewrite\node_modules\mongodb\lib\cmap\connection.js:277:5)
2021-10-17 10:06:39 - ❌ -     at MessageStream.emit (node:events:390:28)
2021-10-17 10:06:39 - ❌ -     at MessageStream.emit (node:domain:475:12)
2021-10-17 10:06:39 - ❌ -     at processIncomingData (C:\Users\Kaname\Documents\Proyectos\Kaede\kaede-rewrite\node_modules\mongodb\lib\cmap\message_stream.js:144:12) {
2021-10-17 10:06:39 - ❌ -   driver: true,
2021-10-17 10:06:39 - ❌ -   index: 0,
2021-10-17 10:06:39 - ❌ -   code: 40
2021-10-17 10:06:39 - ❌ - }

To Reproduce
Steps to reproduce the behavior:

1. Create a document
2. Update embedded object field value
3. See error

Expected behavior
A clear and concise description of what you expected to happen.

Additional context
Reproduction repo:
https://github.com/kaname-png/mikro-orm-error

Versions

Dependency	Version
node	v16.11.0
typescript	4.4.4
mikro-orm	4.5.9
your-driver	mongo

[sawa-ko]

@B4nan Can you help me?
sorry for the ping

[B4nan]

Well, this is not a bug, onCreate/onUpdate options on embeddables are simply not (yet) supported, especially with object mode. Embeddables support only a subset of the options.