fix the issue in unliking

src/space/services/space-product-allocation.service.ts

@@ -190,6 +190,8 @@ export class SpaceProductAllocationService {
     queryRunner: QueryRunner,
     modifySubspace?: ModifySubspaceDto[],
   ): Promise<void> {
+    if (!dtos || dtos.length === 0) return;
+
     try {
       await Promise.all([
         this.processAddActions(
@@ -343,10 +345,7 @@ export class SpaceProductAllocationService {
     space: SpaceEntity,
   ): Promise<SpaceProductAllocationEntity[]> {
     try {
-      if (!dtos || dtos.length === 0) {
-        throw new Error('No DTOs provided for deletion.');
-      }
-
+      if (!dtos || dtos.length === 0) return;
       const tagUuidsToDelete = dtos
         .filter((dto) => dto.action === ModifyAction.DELETE && dto.tagUuid)
         .map((dto) => dto.tagUuid);

src/space/services/space-validation.service.ts

@@ -133,6 +133,7 @@ export class ValidationService {
         'subspaces.productAllocations.product',
         'subspaces.tags',
         'subspaces.devices',
+        'spaceModel',
       ],
     });
 

src/space/services/space.service.ts

@@ -449,6 +449,11 @@ export class SpaceService {
         );
       }
 
+      if (space.spaceModel && !updateSpaceDto.spaceModelUuid) {
+        space.spaceModel = null;
+        await this.unlinkSpaceFromModel(space, queryRunner);
+      }
+
       this.updateSpaceProperties(space, updateSpaceDto);
 
       if (updateSpaceDto.spaceModelUuid) {
@@ -535,15 +540,6 @@ export class SpaceService {
     queryRunner: QueryRunner,
   ): Promise<void> {
     try {
-      await queryRunner.manager.update(
-        this.spaceRepository.target,
-        { uuid: space.uuid },
-        {
-          spaceModel: null,
-        },
-      );
-
-      // Unlink subspaces and tags if they exist
       if (space.subspaces || space.tags) {
         if (space.tags) {
           await this.spaceProductAllocationService.unlinkModels(