finished return the last three parents

src/space/dtos/space.parents.dto.ts

@@ -0,0 +1,7 @@
+import { SpaceEntity } from '@app/common/modules/space/entities/space.entity';
+import { Expose } from 'class-transformer';
+
+export class SpaceWithParentsDto extends SpaceEntity {
+  @Expose()
+  lastThreeParents: string;
+}

src/space/services/space.service.ts

@@ -36,6 +36,8 @@ import { SpaceEntity } from '@app/common/modules/space/entities/space.entity';
 import { ProcessTagDto } from 'src/tags/dtos';
 import { SpaceProductAllocationService } from './space-product-allocation.service';
 import { SubspaceEntity } from '@app/common/modules/space/entities/subspace/subspace.entity';
+import { DeviceService } from 'src/device/services';
+import { SpaceWithParentsDto } from '../dtos/space.parents.dto';
 @Injectable()
 export class SpaceService {
   constructor(
@@ -47,6 +49,7 @@ export class SpaceService {
     private readonly validationService: ValidationService,
     private readonly newTagService: NewTagService,
     private readonly spaceModelService: SpaceModelService,
+    private readonly deviceService: DeviceService,
     private commandBus: CommandBus,
     private readonly spaceProductAllocationService: SpaceProductAllocationService,
   ) {}
@@ -235,7 +238,25 @@ export class SpaceService {
         queryBuilder.innerJoin('space.devices', 'devices');
       }
 
-      const spaces = await queryBuilder.getMany();
+      let spaces = await queryBuilder.getMany();
+
+      if (onlyWithDevices) {
+        spaces = await Promise.all(
+          spaces.map(async (space) => {
+            const spaceHierarchy =
+              await this.deviceService.getParentHierarchy(space);
+            const parentHierarchy = spaceHierarchy
+              .slice(0, 3)
+              .map((space) => space.spaceName)
+              .join(' - ');
+
+            return {
+              ...space,
+              lastThreeParents: parentHierarchy,
+            } as SpaceWithParentsDto;
+          }),
+        );
+      }
 
       const transformedSpaces = spaces.map(this.transformSpace);
       const spaceHierarchy = this.buildSpaceHierarchy(transformedSpaces);