# Introduction
- FlatFieldMetadataType validators hashmap
- Do not fail fast on validation but aggregate errors
- Implemented `enum` validation
- Plugged the new v2 dynamic call in the field metadata service v2
## What's next:
- Implem integration tests to make things run 🙃
- migrate existing settings valdiation
- Finish the create object metadata service
- Handle update input transpilation and validation
## Open question
Should we implement, not covered validation ?, adding strictness now or
never.
This will be required by the import anw
## Discovered issue with cache
Currently the cache is not accurately typed, `fieldsById` map are not
storing any relations.
Which means the current transpilation tools are hitting undefined at
runtime
In the best of the world we will refactor the cache to be storing
`FlatObjectMetadata` and `FlatFieldMetadata` so we don't even have to
transpile them for validation and so on
But it would require to refactor the loaders that returns the cache to
the front on hit as FieldMetadataEntity, so we might land on a lighter
solution to rather add a new `getExistingFlatCache` that handles the
transpilation itself
About to do that in an other PR to be discussed with Coco
# Introduction
Following https://github.com/twentyhq/twenty/pull/13420
What has been done:
- `CreateFieldInput` transpilation to `FlatFieldMetadata`
- `FlatFieldMetadata` validator service
- A lof of transpilation utils from `input` to `flatObject` or
`flatField`
- Created dedicated v2 api metadata services
- Introducing `inferDeletionFromMissingObjectFieldIndex` in the builder,
to avoid diffing every object and field of the current workspace we
allow only generating create/update migration operations, usefull when
passing by the api metadata
## We still need to in another PR:
- Implement a strong unit test coverage and critical functions and
services
- Finalize flat field metadata validation exception for `options`
`defaultValue` `settings` and `relations`
- Finalize `flatObjectMetadata` validation and v2 service refactor
- Plug the new service when feature flag is enabled
