[REQUIRES_CACHE_FLUSH][GQL_VIEW_GROUP_API_BREAKING_CHANGE] ViewGroup in v2 (#15052)

# 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

packages/twenty-server/src/engine/metadata-modules/flat-entity/constant/all-flat-entity-maps-properties.constant.ts

@@ -1,14 +1,6 @@
-import { type AllFlatEntityMaps } from 'src/engine/metadata-modules/flat-entity/types/all-flat-entity-maps.type';
+import { ALL_METADATA_NAME } from 'src/engine/metadata-modules/flat-entity/constant/all-metadata-name.constant';
+import { getMetadataFlatEntityMapsKey } from 'src/engine/metadata-modules/flat-entity/utils/get-metadata-flat-entity-maps-key.util';
 
-export const ALL_FLAT_ENTITY_MAPS_PROPERTIES = [
-  'flatObjectMetadataMaps',
-  'flatViewFieldMaps',
-  'flatViewMaps',
-  'flatIndexMaps',
-  'flatServerlessFunctionMaps',
-  'flatDatabaseEventTriggerMaps',
-  'flatCronTriggerMaps',
-  'flatRouteTriggerMaps',
-  'flatFieldMetadataMaps',
-  'flatViewFilterMaps',
-] as const satisfies (keyof AllFlatEntityMaps)[];
+export const ALL_FLAT_ENTITY_MAPS_PROPERTIES = Object.keys(
+  ALL_METADATA_NAME,
+).map(getMetadataFlatEntityMapsKey);

packages/twenty-server/src/engine/metadata-modules/flat-entity/constant/all-flat-entity-properties-to-compare-and-stringify.constant.ts

@@ -5,6 +5,7 @@ import { type MetadataFlatEntity } from 'src/engine/metadata-modules/flat-entity
 import { FLAT_FIELD_METADATA_EDITABLE_PROPERTIES } from 'src/engine/metadata-modules/flat-field-metadata/constants/flat-field-metadata-editable-properties.constant';
 import { FLAT_VIEW_FIELD_EDITABLE_PROPERTIES } from 'src/engine/metadata-modules/flat-view-field/constants/flat-view-field-editable-properties.constant';
 import { FLAT_VIEW_FILTER_EDITABLE_PROPERTIES } from 'src/engine/metadata-modules/flat-view-filter/constants/flat-view-filter-editable-properties.constant';
+import { FLAT_VIEW_GROUP_EDITABLE_PROPERTIES } from 'src/engine/metadata-modules/flat-view-group/constants/flat-view-group-editable-properties.constant';
 import { FLAT_VIEW_EDITABLE_PROPERTIES } from 'src/engine/metadata-modules/flat-view/constants/flat-view-editable-properties.constant';
 import { FLAT_ROUTE_TRIGGER_EDITABLE_PROPERTIES } from 'src/engine/metadata-modules/route-trigger/constants/flat-route-trigger-editable-properties.constant';
 import { FLAT_SERVERLESS_FUNCTION_EDITABLE_PROPERTIES } from 'src/engine/metadata-modules/serverless-function/constants/flat-serverless-function-editable-properties.constant';
@@ -49,6 +50,10 @@ export const ALL_FLAT_ENTITY_PROPERTIES_TO_COMPARE_AND_STRINGIFY = {
     propertiesToCompare: [...FLAT_VIEW_FIELD_EDITABLE_PROPERTIES, 'deletedAt'],
     propertiesToStringify: [],
   },
+  viewGroup: {
+    propertiesToCompare: [...FLAT_VIEW_GROUP_EDITABLE_PROPERTIES, 'deletedAt'],
+    propertiesToStringify: [],
+  },
   index: {
     propertiesToCompare: [
       'indexType',

packages/twenty-server/src/engine/metadata-modules/flat-entity/constant/all-metadata-many-to-one-relations.constant.ts

@@ -42,6 +42,10 @@ export const ALL_METADATA_NAME_MANY_TO_ONE_RELATIONS = {
     view: 'viewId',
     fieldMetadata: 'fieldMetadataId',
   },
+  viewGroup: {
+    view: 'viewId',
+    fieldMetadata: 'fieldMetadataId',
+  },
   index: {
     objectMetadata: 'objectMetadataId',
   },

packages/twenty-server/src/engine/metadata-modules/flat-entity/constant/all-metadata-name.constant.ts

@@ -3,6 +3,7 @@ export const ALL_METADATA_NAME = {
   objectMetadata: 'objectMetadata',
   view: 'view',
   viewField: 'viewField',
+  viewGroup: 'viewGroup',
   index: 'index',
   serverlessFunction: 'serverlessFunction',
   cronTrigger: 'cronTrigger',

packages/twenty-server/src/engine/metadata-modules/flat-entity/constant/all-metadata-required-metadata-for-validation.constant.ts

@@ -43,4 +43,8 @@ export const ALL_METADATA_REQUIRED_METADATA_FOR_VALIDATION = {
     view: true,
     fieldMetadata: true,
   },
+  viewGroup: {
+    fieldMetadata: true,
+    view: true,
+  },
 } as const satisfies MetadataRequiredForValidation;

packages/twenty-server/src/engine/metadata-modules/flat-entity/constant/empty-all-flat-entity-maps.constant.ts

@@ -1,15 +1,15 @@
+import { ALL_METADATA_NAME } from 'src/engine/metadata-modules/flat-entity/constant/all-metadata-name.constant';
 import { EMPTY_FLAT_ENTITY_MAPS } from 'src/engine/metadata-modules/flat-entity/constant/empty-flat-entity-maps.constant';
 import { type AllFlatEntityMaps } from 'src/engine/metadata-modules/flat-entity/types/all-flat-entity-maps.type';
+import { type AllMetadataName } from 'src/engine/metadata-modules/flat-entity/types/all-metadata-name.type';
+import { getMetadataFlatEntityMapsKey } from 'src/engine/metadata-modules/flat-entity/utils/get-metadata-flat-entity-maps-key.util';
 
-export const EMPTY_ALL_FLAT_ENTITY_MAPS = {
-  flatObjectMetadataMaps: EMPTY_FLAT_ENTITY_MAPS,
-  flatFieldMetadataMaps: EMPTY_FLAT_ENTITY_MAPS,
-  flatIndexMaps: EMPTY_FLAT_ENTITY_MAPS,
-  flatViewFieldMaps: EMPTY_FLAT_ENTITY_MAPS,
-  flatViewMaps: EMPTY_FLAT_ENTITY_MAPS,
-  flatServerlessFunctionMaps: EMPTY_FLAT_ENTITY_MAPS,
-  flatCronTriggerMaps: EMPTY_FLAT_ENTITY_MAPS,
-  flatDatabaseEventTriggerMaps: EMPTY_FLAT_ENTITY_MAPS,
-  flatRouteTriggerMaps: EMPTY_FLAT_ENTITY_MAPS,
-  flatViewFilterMaps: EMPTY_FLAT_ENTITY_MAPS,
-} as const satisfies AllFlatEntityMaps;
+export const EMPTY_ALL_FLAT_ENTITY_MAPS = (
+  Object.keys(ALL_METADATA_NAME) as AllMetadataName[]
+).reduce<AllFlatEntityMaps>(
+  (acc, metadataName) => ({
+    ...acc,
+    [getMetadataFlatEntityMapsKey(metadataName)]: EMPTY_FLAT_ENTITY_MAPS,
+  }),
+  {} as AllFlatEntityMaps,
+);