# Introduction
Migrating `viewFilter` to v2 in order to migrate later the field update
side effect on view to v2 too
## What's done
- Created flat-view-filter
- flat view filter runner
- flat view filter builder
- create view filter service v2 and input transpilers
- refactor the existing view filter resolver to fix standard (
BREAKING_CHANGE on graphql api update especially ) REST stays the same
- refactored the front to consume the mutations autogenerated
## New generic tools
### Compare two flat entity
Introducing a new util to compare two flat entity, it's strictly typed
and will be added to the generic builder in a following PR
This will ease flat entity addition as won't required to create a
specific abstraction for comparison
Generic builder will expect specific constant: properties to compare and
properties to stringify
### Transform flat entity for comparison
Forked and refactor the initial existing method for flat entity business
scope and type safety
## Coverage
Migrated existing integration tests to fit new contract API
This PR does not add strong coverage on validation exceptions
Deadlines are too short
close https://github.com/twentyhq/core-team-issues/issues/1666
## Summary
1. This change introduces the ability to limit how many values a
multi-value field can contain (for example: maximum number of emails,
phone numbers, links, or array items).
2. It centralizes the limit as a shared constant and type, validates
settings on the server, updates front-end types and components to
consume the setting, and adds a small settings UI so workspace admins
can change the limit per field.
3. Default behavior is preserved: if no max is configured, the existing
default (10) is used.
## **Fixes Issue:** [#14740
](https://github.com/twentyhq/twenty/issues/14740)
## Manual Test Screenshot
<img width="383" height="451" alt="Screenshot 2025-10-08 002413"
src="https://github.com/user-attachments/assets/a7704af6-10ef-4d10-b8c9-a9eeca03bfd9"
/>
### Values in fields
https://github.com/user-attachments/assets/7f59c4f7-3aca-4f83-8c04-3d44988316e3
Let me know if any changes are needed
---------
Co-authored-by: Félix Malfait <felix@twenty.com>
Co-authored-by: Félix Malfait <felix.malfait@gmail.com>
