# What this PR does
Overall naming `universal` versus `flat` is not always the most updated
and so on
Will make a big cleaning tour after I've finished the whole migration
Migrating all `view` and ( filter fields etc ) `field` `object` `index`
to the universal pattern on all `services`, `builder` and `runner`
levels
## Universal and flat optimistic tooling
`addUniversalFlatEntityToUniversalFlatEntityAndRelatedEntityMapsThroughMutationOrThrow`
and its delete counterpart maintain the consistency of
`UniversalFlatEntityMaps` when an entity is created or removed. Beyond
inserting/removing the entity from its own maps, they walk through
`ALL_UNIVERSAL_METADATA_RELATIONS` to update the **aggregator arrays**
on related parent entities — the add appends the new entity's
`universalIdentifier` to the parent's aggregator (e.g. a new viewField's
identifier gets appended to its parent view's
`viewFieldUniversalIdentifiers`), and the delete filters it out. This
keeps the maps in sync so that diff computations and relation lookups
remain accurate throughout the migration building process.
## ALL_UNIVERSAL_METADATA_RELATIONS
`ALL_UNIVERSAL_METADATA_RELATIONS` is the universal counterpart of
`ALL_METADATA_RELATIONS`. It maps each metadata entity to its
many-to-one and one-to-many relations using universal foreign keys
(`*UniversalIdentifier`) instead of database IDs (`*Id`). This allows
migration actions to reference related entities in a workspace-agnostic
way. Relations that are workspace-specific (e.g. `workspace`,
`dataSource`, `userWorkspace`) are set to `null` and skipped during
resolution.
## `workspaceMigrationCreateIdEnrichment`
Reserved to API metadata ( will be able to validate at app installation
lvl )
- Workspace migration `create` actions now carry an optional `id` (and
`fieldIdByUniversalIdentifier` for object/field actions) so that
caller-provided IDs flow through the entire build-validate-run pipeline.
- New `enrichCreateWorkspaceMigrationActionsWithIds` utility resolves
`universalIdentifier → id` mappings after the builder runs and injects
them into the migration actions before the runner persists entities.
- Runner action handlers use the provided IDs instead of generating new
UUIDs, enabling deterministic entity creation for synchronization
workflows.
## `resolveUniversalUpdateRelationIdentifiersToIds`
`resolveUniversalUpdateRelationIdentifiersToIds` converts universal
identifiers (workspace-agnostic, stable keys) in a migration update
payload into concrete database UUIDs, so the update can be applied to a
specific workspace.
It iterates over the many-to-one relations defined in
`ALL_UNIVERSAL_METADATA_RELATIONS` for the given entity type, replaces
each `*UniversalIdentifier` property with its corresponding `*Id` by
looking up the target entity in `allFlatEntityMaps`, and throws if a
non-null identifier can't be resolved.
Used by all `update` action handlers in
`transpileUniversalActionToFlatAction`, avoiding duplicated resolution
logic across handlers.
## What this PR does not
- Migrating twenty-standard declaration to universal
- Migrating all the inputs transpilers to universal
- Migrating all metadata to be fully universal ( we still need to
de-scope the type of all of them and refactor their validator very close
)
---------
Co-authored-by: Charles Bochet <charles@twenty.com>
As part of the extensibility effort, we are introducing a new engine
entity called "Front Component". This represents a dynamic react
component that will be rendered in CommandMenu actions or in PageLayout
widgets
This PR introduce the entity and all the necessary boilerplate to make
it syncable and cachable in the engine
Paul Rastoin