https://sonarly.com/issue/33956?type=bug Installing a marketplace app that defines a view filter with an `IS_NOT_EMPTY` operand fails because the app manifest omits the `value` field (which is semantically unnecessary for that operand), but the database column `core.viewFilter.value` is NOT NULL with no default. Fix: Three changes across 3 files to fix the NOT NULL constraint violation when installing marketplace apps with emptiness-operand view filters: 1. **`packages/twenty-shared/src/application/viewManifestType.ts`**: Made `value` optional on `ViewFilterManifest` (`value?: ViewManifestFilterValue`). Operands like `IS_NOT_EMPTY`, `IS_EMPTY`, `IS_NOT_NULL`, `IS_IN_PAST`, `IS_IN_FUTURE`, and `IS_TODAY` don't require a value, so the manifest type should reflect this. This is backwards-compatible — existing manifests that provide a value are unaffected. 2. **`packages/twenty-server/src/engine/core-modules/application/application-manifest/converters/from-view-filter-manifest-to-universal-flat-view-filter.util.ts`**: Changed `value: viewFilterManifest.value` to `value: viewFilterManifest.value ?? ''` — provides an empty string default when the manifest omits the value. This follows the same `?? null` / `?? default` pattern already used for `viewFilterGroupUniversalIdentifier`, `subFieldName`, and `positionInViewFilterGroup` in the same function. Empty string satisfies the database NOT NULL constraint and is semantically correct (the value is ignored for emptiness operands). 3. **`packages/twenty-server/src/engine/core-modules/application/application-manifest/converters/__tests__/from-view-filter-manifest-to-universal-flat-view-filter.util.spec.ts`**: Added a test case that creates a view filter with `IS_NOT_EMPTY` operand and no `value`, verifying the converter defaults to empty string.
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Why Twenty
Twenty gives technical teams the building blocks for a custom CRM that meets complex business needs and quickly adapts as the business evolves. Twenty is the CRM you build, ship, and version like the rest of your stack.
Learn more about why we built Twenty
Installation
Cloud
The fastest way to get started. Sign up at twenty.com and spin up a workspace in under a minute, with no infrastructure to manage and always up to date.
Build an app
Scaffold a new app with the Twenty CLI:
npx create-twenty-app my-app
Define objects, fields, and views as code:
import { defineObject, FieldType } from 'twenty-sdk/define';
export default defineObject({
nameSingular: 'deal',
namePlural: 'deals',
labelSingular: 'Deal',
labelPlural: 'Deals',
fields: [
{ name: 'name', label: 'Name', type: FieldType.TEXT },
{ name: 'amount', label: 'Amount', type: FieldType.CURRENCY },
{ name: 'closeDate', label: 'Close Date', type: FieldType.DATE_TIME },
],
});
Then ship it to your workspace:
npx twenty deploy
See the app development guide for objects, views, agents, and logic functions.
Self-hosting
Run Twenty on your own infrastructure with Docker Compose, or contribute locally via the local setup guide.
Everything you need
Twenty gives you the building blocks of a modern CRM (objects, views, workflows, and agents) and lets you extend them as code. Here's a tour of what's in the box.
Want to go deeper? Read the User Guide for product walkthroughs, or the
Documentation for developer reference.
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Stack
TypeScript
Nx
NestJS, with BullMQ,
PostgreSQL,
Redis
React, with Jotai, Linaria and Lingui
Thanks
Thanks to these amazing services that we use and recommend for UI testing (Chromatic), code review (Greptile), catching bugs (Sentry) and translating (Crowdin).
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