function to remove guest from school

apps/server/src/modules/user/service/user.service.spec.ts

@@ -640,6 +640,34 @@ describe('UserService', () => {
 		});
 	});
 
+	describe('removeSecondarySchool', () => {
+		describe('when user is guest in targetSchool', () => {
+			const setup = () => {
+				const targetSchool = schoolFactory.build();
+				const role = roleFactory.buildWithId({ name: RoleName.TEACHER });
+				const guestTeacher = roleFactory.buildWithId({ name: RoleName.GUESTTEACHER });
+				const user = userDoFactory.buildWithId({
+					roles: [role],
+					secondarySchools: [{ schoolId: targetSchool.id, role: new RoleDto(guestTeacher) }],
+				});
+
+				userDORepo.findByIds.mockResolvedValueOnce([user]);
+
+				return { user, targetSchool, guestTeacher };
+			};
+
+			it('should remove user from secondary school', async () => {
+				const { user, targetSchool } = setup();
+
+				await service.removeSecondarySchoolFromUsers([user.id as EntityId], targetSchool.id);
+
+				expect(userDORepo.saveAll).toHaveBeenCalledWith(
+					expect.arrayContaining([expect.objectContaining({ id: user.id, secondarySchools: [] })])
+				);
+			});
+		});
+	});
+
 	describe('saveAll is called', () => {
 		it('should call the repo with given users', async () => {
 			const users: UserDO[] = [userDoFactory.buildWithId()];

apps/server/src/modules/user/service/user.service.ts

@@ -174,6 +174,17 @@ export class UserService implements DeletionService, IEventHandler<UserDeletedEv
 		return Promise.resolve();
 	}
 
+	async removeSecondarySchoolFromUsers(userIds: string[], schoolId: EntityId): Promise<void> {
+		const users = await this.userDORepo.findByIds(userIds, true);
+
+		users.forEach((user) => {
+			user.secondarySchools = user.secondarySchools.filter((school) => school.schoolId !== schoolId);
+		});
+
+		await this.userDORepo.saveAll(users);
+		return Promise.resolve();
+	}
+
 	async findByExternalId(externalId: string, systemId: EntityId): Promise<UserDO | null> {
 		const user: Promise<UserDO | null> = this.userDORepo.findByExternalId(externalId, systemId);