Fix nested relations with large dataset in find queries (#7127)

## Before
<img width="920" alt="before"
src="https://github.com/user-attachments/assets/4809556f-0459-4f56-a716-b969a943d492">

## After
<img width="920" alt="after"
src="https://github.com/user-attachments/assets/504186b2-d002-482d-bc3e-2dda45c314b1">

packages/twenty-server/src/engine/api/graphql/graphql-query-runner/resolvers/graphql-query-find-many-resolver.service.ts

@@ -17,11 +17,15 @@ import {
   GraphqlQueryRunnerExceptionCode,
 } from 'src/engine/api/graphql/graphql-query-runner/errors/graphql-query-runner.exception';
 import { GraphqlQueryParser } from 'src/engine/api/graphql/graphql-query-runner/graphql-query-parsers/graphql-query.parser';
+import { ProcessNestedRelationsHelper } from 'src/engine/api/graphql/graphql-query-runner/helpers/process-nested-relations.helper';
 import { ObjectRecordsToGraphqlConnectionMapper } from 'src/engine/api/graphql/graphql-query-runner/orm-mappers/object-records-to-graphql-connection.mapper';
 import { applyRangeFilter } from 'src/engine/api/graphql/graphql-query-runner/utils/apply-range-filter.util';
 import { decodeCursor } from 'src/engine/api/graphql/graphql-query-runner/utils/cursors.util';
 import { getObjectMetadataOrThrow } from 'src/engine/api/graphql/graphql-query-runner/utils/get-object-metadata-or-throw.util';
-import { generateObjectMetadataMap } from 'src/engine/metadata-modules/utils/generate-object-metadata-map.util';
+import {
+  generateObjectMetadataMap,
+  ObjectMetadataMapItem,
+} from 'src/engine/metadata-modules/utils/generate-object-metadata-map.util';
 import { TwentyORMGlobalManager } from 'src/engine/twenty-orm/twenty-orm-global.manager';
 
 export class GraphqlQueryFindManyResolverService {
@@ -78,12 +82,12 @@ export class GraphqlQueryFindManyResolverService {
     const limit = args.first ?? args.last ?? QUERY_MAX_RECORDS;
 
     this.addOrderByColumnsToSelect(order, select);
+    this.addForeingKeyColumnsToSelect(relations, select, objectMetadata);
 
     const findOptions: FindManyOptions<ObjectLiteral> = {
       where,
       order,
       select,
-      relations,
       take: limit + 1,
     };
 
@@ -95,7 +99,10 @@ export class GraphqlQueryFindManyResolverService {
       applyRangeFilter(where, cursor, isForwardPagination);
     }
 
-    const objectRecords = await repository.find(findOptions);
+    const objectRecords = (await repository.find(
+      findOptions,
+    )) as ObjectRecord[];
+
     const { hasNextPage, hasPreviousPage } = this.getPaginationInfo(
       objectRecords,
       limit,
@@ -106,11 +113,26 @@ export class GraphqlQueryFindManyResolverService {
       objectRecords.pop();
     }
 
+    const processNestedRelationsHelper = new ProcessNestedRelationsHelper(
+      this.twentyORMGlobalManager,
+    );
+
+    if (relations) {
+      await processNestedRelationsHelper.processNestedRelations(
+        objectMetadataMap,
+        objectMetadata,
+        objectRecords,
+        relations,
+        limit,
+        authContext,
+      );
+    }
+
     const typeORMObjectRecordsParser =
       new ObjectRecordsToGraphqlConnectionMapper(objectMetadataMap);
 
     return typeORMObjectRecordsParser.createConnection(
-      objectRecords as ObjectRecord[],
+      objectRecords,
       objectMetadataItem.nameSingular,
       limit,
       totalCount,
@@ -179,6 +201,18 @@ export class GraphqlQueryFindManyResolverService {
     }
   }
 
+  private addForeingKeyColumnsToSelect(
+    relations: Record<string, any>,
+    select: Record<string, boolean>,
+    objectMetadata: ObjectMetadataMapItem,
+  ) {
+    for (const column of Object.keys(relations || {})) {
+      if (!select[`${column}Id`] && objectMetadata.fields[`${column}Id`]) {
+        select[`${column}Id`] = true;
+      }
+    }
+  }
+
   private getPaginationInfo(
     objectRecords: any[],
     limit: number,

packages/twenty-server/src/engine/api/graphql/graphql-query-runner/resolvers/graphql-query-find-one-resolver.service.ts

@@ -7,11 +7,13 @@ import {
 import { WorkspaceQueryRunnerOptions } from 'src/engine/api/graphql/workspace-query-runner/interfaces/query-runner-option.interface';
 import { FindOneResolverArgs } from 'src/engine/api/graphql/workspace-resolver-builder/interfaces/workspace-resolvers-builder.interface';
 
+import { QUERY_MAX_RECORDS } from 'src/engine/api/graphql/graphql-query-runner/constants/query-max-records.constant';
 import {
   GraphqlQueryRunnerException,
   GraphqlQueryRunnerExceptionCode,
 } from 'src/engine/api/graphql/graphql-query-runner/errors/graphql-query-runner.exception';
 import { GraphqlQueryParser } from 'src/engine/api/graphql/graphql-query-runner/graphql-query-parsers/graphql-query.parser';
+import { ProcessNestedRelationsHelper } from 'src/engine/api/graphql/graphql-query-runner/helpers/process-nested-relations.helper';
 import { ObjectRecordsToGraphqlConnectionMapper } from 'src/engine/api/graphql/graphql-query-runner/orm-mappers/object-records-to-graphql-connection.mapper';
 import { getObjectMetadataOrThrow } from 'src/engine/api/graphql/graphql-query-runner/utils/get-object-metadata-or-throw.util';
 import { generateObjectMetadataMap } from 'src/engine/metadata-modules/utils/generate-object-metadata-map.util';
@@ -59,7 +61,11 @@ export class GraphqlQueryFindOneResolverService {
     );
     const where = graphqlQueryParser.parseFilter(args.filter ?? ({} as Filter));
 
-    const objectRecord = await repository.findOne({ where, select, relations });
+    const objectRecord = (await repository.findOne({
+      where,
+      select,
+    })) as ObjectRecord;
+    const limit = QUERY_MAX_RECORDS;
 
     if (!objectRecord) {
       throw new GraphqlQueryRunnerException(
@@ -68,11 +74,28 @@ export class GraphqlQueryFindOneResolverService {
       );
     }
 
+    const processNestedRelationsHelper = new ProcessNestedRelationsHelper(
+      this.twentyORMGlobalManager,
+    );
+
+    const objectRecords = [objectRecord];
+
+    if (relations) {
+      await processNestedRelationsHelper.processNestedRelations(
+        objectMetadataMap,
+        objectMetadata,
+        objectRecords,
+        relations,
+        limit,
+        authContext,
+      );
+    }
+
     const typeORMObjectRecordsParser =
       new ObjectRecordsToGraphqlConnectionMapper(objectMetadataMap);
 
     return typeORMObjectRecordsParser.processRecord(
-      objectRecord,
+      objectRecords[0],
       objectMetadataItem.nameSingular,
       1,
       1,