regression: Room update via apps engine failing with `Duplicated index key` error (#35878)

apps/meteor/app/apps/server/converters/rooms.js

@@ -137,12 +137,12 @@ export class AppRoomsConverter {
 
 		const newRoom = {
 			...(room.id && { _id: room.id }),
-			t: room.type,
-			ts: room.createdAt,
-			msgs: room.messageCount || 0,
-			_updatedAt: room.updatedAt,
+			...(typeof room.type !== 'undefined' && { t: room.type }),
+			...(typeof room.createdAt !== 'undefined' && { ts: room.createdAt }),
+			...(typeof room.messageCount !== 'undefined' && { msgs: room.messageCount || 0 }),
+			...(typeof room.updatedAt !== 'undefined' && { _updatedAt: room.updatedAt }),
 			...(room.displayName && { fname: room.displayName }),
-			...(room.type !== 'd' && { name: room.slugifiedName }),
+			...(room.type !== 'd' && room.slugifiedName && { name: room.slugifiedName }),
 			...(room.members && { members: room.members }),
 			...(typeof room.isDefault !== 'undefined' && { default: room.isDefault }),
 			...(typeof room.isReadOnly !== 'undefined' && { ro: room.isReadOnly }),

apps/meteor/tests/unit/app/apps/server/mocks/models/Rooms.mock.js

@@ -115,6 +115,19 @@ export class RoomsMock extends BaseModelMock {
 			updatedAt: new Date('2019-04-10T17:44:34.931Z'),
 		},
 
+		GENERALPartialWithOptionalProps: {
+			id: 'GENERAL',
+			slugifiedName: 'general',
+			displaySystemMessages: true,
+			updatedAt: new Date('2019-04-10T17:44:34.931Z'),
+			messageCount: 40,
+			type: 'c',
+		},
+
+		UpdatedRoom: {
+			customFields: { custom: 'field' },
+		},
+
 		LivechatRoom: {
 			id: 'LivechatRoom',
 			slugifiedName: undefined,

apps/meteor/tests/unit/app/apps/server/rooms.tests.ts

@@ -112,11 +112,66 @@ describe('The AppMessagesConverter instance', () => {
 			expect(rocketchatRoom).to.have.property('_id', appRoom.id);
 			expect(rocketchatRoom).to.have.property('name', appRoom.slugifiedName);
 			expect(rocketchatRoom).to.have.property('sysMes', appRoom.displaySystemMessages);
-			expect(rocketchatRoom).to.have.property('msgs', 0);
 			expect(rocketchatRoom).to.have.property('_updatedAt', appRoom.updatedAt);
 
+			expect(rocketchatRoom).to.not.have.property('msgs');
 			expect(rocketchatRoom).to.not.have.property('ro');
 			expect(rocketchatRoom).to.not.have.property('default');
+			expect(rocketchatRoom).to.not.have.property('t');
+		});
+
+		it('should return a proper schema when receiving a partial object', async () => {
+			const appRoom = RoomsMock.convertedData.GENERALPartialWithOptionalProps as unknown as IAppsRoom;
+			const rocketchatRoom = await roomConverter.convertAppRoom(appRoom, true);
+
+			expect(rocketchatRoom).to.have.property('_id', appRoom.id);
+			expect(rocketchatRoom).to.have.property('name', appRoom.slugifiedName);
+			expect(rocketchatRoom).to.have.property('sysMes', appRoom.displaySystemMessages);
+			expect(rocketchatRoom).to.have.property('_updatedAt', appRoom.updatedAt);
+			expect(rocketchatRoom).to.have.property('msgs', appRoom.messageCount);
+			expect(rocketchatRoom).to.have.property('t', 'c');
+
+			expect(rocketchatRoom).to.not.have.property('ro');
+			expect(rocketchatRoom).to.not.have.property('default');
+		});
+
+		it('should not include properties that are not present in the app room', async () => {
+			const appRoom = RoomsMock.convertedData.UpdatedRoom as unknown as IAppsRoom;
+			const rocketchatRoom = await roomConverter.convertAppRoom(appRoom, true);
+
+			expect(rocketchatRoom).to.have.property('customFields');
+			expect(rocketchatRoom).to.not.have.property('_id');
+			expect(rocketchatRoom).to.not.have.property('t');
+		});
+
+		it('should not include name as undefined if the room doesnt have a name property', async () => {
+			const appRoom = RoomsMock.convertedData.UpdatedRoom as unknown as IAppsRoom;
+			const rocketchatRoom = await roomConverter.convertAppRoom(appRoom, true);
+
+			expect(rocketchatRoom.name).to.be.undefined;
+		});
+
+		it('should include a name if the source room has slugifiedName property', async () => {
+			const appRoom = RoomsMock.convertedData.GENERALPartialWithOptionalProps as unknown as IAppsRoom;
+			const rocketchatRoom = await roomConverter.convertAppRoom(appRoom, true);
+
+			expect(rocketchatRoom.name).to.equal(appRoom.slugifiedName);
+		});
+
+		it('should not use _unmappedProperties when the room is a partial object', async () => {
+			const appRoom = RoomsMock.convertedData.GENERALPartialWithOptionalProps as unknown as IAppsRoom;
+			// @ts-expect-error - _unmappedProperties
+			const rocketchatRoom = await roomConverter.convertAppRoom({ ...appRoom, _unmappedProperties_: { unmapped: 'property' } }, true);
+
+			expect(rocketchatRoom).to.not.have.property('unmapped');
+		});
+
+		it('should use _unmappedProperties when the room is a partial object', async () => {
+			const appRoom = RoomsMock.convertedData.GENERALPartialWithOptionalProps as unknown as IAppsRoom;
+			// @ts-expect-error - _unmappedProperties
+			const rocketchatRoom = await roomConverter.convertAppRoom({ ...appRoom, _unmappedProperties_: { unmapped: 'property' } }, false);
+
+			expect(rocketchatRoom).to.have.property('unmapped', 'property');
 		});
 	});
 });