## Bug Description
When reordering stages in the Kanban board, the frontend fires all
viewGroup update mutations concurrently via Promise.all, causing race
conditions in the workspace migration runner's cache invalidation,
database contention, and a thundering herd effect that stalls the
server.
## Changes
Changed `usePerformViewGroupAPIPersist` to execute viewGroup update
mutations sequentially instead of concurrently. The `Promise.all`
pattern fired all N mutations simultaneously, each triggering a full
workspace migration runner pipeline (transaction + cache invalidation).
The sequential `for...of` loop ensures each mutation completes
(including its cache invalidation) before the next begins, eliminating
the race condition.
## Related Issue
Fixes#18865
## Testing
This fix addresses the root cause identified in the Sonarly analysis on
the issue. The concurrent mutation pattern was causing:
- PostgreSQL row-level lock contention on viewGroup rows
- Cache thundering herd from repeated invalidation/recomputation cycles
- Server stalls requiring container restarts
The sequential approach ensures proper ordering and prevents these race
conditions.
---------
Co-authored-by: Rayan <rayan@example.com>
Co-authored-by: Charles Bochet <charles@twenty.com>
## Summary
- **Remove all "core" prefixes** from the views system — the
metadata-based storage migration is complete, so `CoreView`,
`coreViewsSelector`, `getCoreViews`, etc. are now just `View`,
`viewsSelector`, `getViews`
- **Eliminate the entire converter layer** (15 files, ~850 lines
deleted) — `convertCoreViewToView` and all sub-converters were either
no-ops or trivially adding `__typename` / mapping identical enum values.
Local enums now re-export from generated GraphQL types directly (single
source of truth)
- **Unify `View` and `ViewWithRelations`** into one type —
`ViewWithRelations` is now a type alias for `View`, selectors return
data directly without conversion
### Backend
- Rename `@ObjectType('CoreView')` → `@ObjectType('View')` (and all
sub-entities)
- Rename resolver methods: `getCoreViews` → `getViews`, `createCoreView`
→ `createView`, etc.
- Rename `FIND_ALL_CORE_VIEWS_GRAPHQL_OPERATION` →
`FIND_ALL_VIEWS_GRAPHQL_OPERATION`
### Frontend
- Delete 15 converter files (`convertGqlView*ToView*`,
`convertView*ToGql`, `convertViewWithRelationsToView`)
- Re-export `ViewType`, `ViewKey`, `ViewFilterGroupLogicalOperator` from
generated enums (no more duplicate enum definitions with different
casing)
- Replace `ViewOpenRecordInType` with `ViewOpenRecordIn` from generated
- Remove `__typename` from all local view sub-types
- Remove unused `variant` from `ViewFilter`, make `displayValue` and
`definition` optional
- Rename ~45 GraphQL query/mutation files and all selectors to drop
"core" prefix
- Delete unused `viewsWithRelationsSelector`
# Introduction
Adding view-group to core engine v2
Following https://github.com/twentyhq/twenty/pull/15010 ( same pattern )
## What's done
- Created flat-view-group
- flat view group runner
- flat view group builder
- create view group service v2 and input transpilers
- refactor the existing view group resolver to fix standard (
BREAKING_CHANGE on graphql api update especially ) REST stays the same
- refactored the front to consume the mutations autogenerated
close https://github.com/twentyhq/core-team-issues/issues/1665
Rayan Salhab