Changed to avoid falsy values and not defined realestate parametrs.

app/helpers/db/realEstate.js

@@ -175,8 +175,8 @@ const findRealEstatesForSearchRequest = async (searchRequest, maxResults) => {
     [Op.and]: geoSearchQueryPart
   };
 
-  //Every other attribute is checked separately and included in query only if it is defined
-  if (gardenSizeMax && gardenSizeMin) {
+  //Every other attribute is checked separately and included in query only if it is defined/not null
+  if (gardenSizeMax!=null && gardenSizeMin!=null) {
     query.gardenSize = {
       [Op.lte]: gardenSizeMax,
       [Op.gte]: gardenSizeMin
@@ -192,7 +192,7 @@ const findRealEstatesForSearchRequest = async (searchRequest, maxResults) => {
     };
   }
 
-  if (numberOfRoomsMin && numberOfRoomsMax) {
+  if (numberOfRoomsMin!=null && numberOfRoomsMax!=null) {
     query.numberOfRooms = {
       [Op.lte]: numberOfRoomsMax,
       [Op.gte]: numberOfRoomsMin
@@ -208,7 +208,7 @@ const findRealEstatesForSearchRequest = async (searchRequest, maxResults) => {
     };
   }
 
-  if (numberOfFloorsMin && numberOfFloorsMax) {
+  if (numberOfFloorsMin!=null && numberOfFloorsMax!=null) {
     query.numberOfFloors = {
       [Op.lte]: numberOfFloorsMax,
       [Op.gte]: numberOfFloorsMin
@@ -224,7 +224,7 @@ const findRealEstatesForSearchRequest = async (searchRequest, maxResults) => {
     };
   }
 
-  if (floorMin && floorMax) {
+  if (floorMin!=null && floorMax!=null) {
     query.floor = {
       [Op.lte]: floorMax,
       [Op.gte]: floorMin
@@ -240,7 +240,7 @@ const findRealEstatesForSearchRequest = async (searchRequest, maxResults) => {
     };
   }
 
-  if (balcony) {
+  if (balcony!=null) {
     query.balcony = {
       [Op.eq]: balcony
     };
@@ -252,7 +252,7 @@ const findRealEstatesForSearchRequest = async (searchRequest, maxResults) => {
     };
   }
 
-  if (newBuilding) {
+  if (newBuilding!=null) {
     query.newBuilding = {
       [Op.eq]: newBuilding
     };
@@ -264,7 +264,7 @@ const findRealEstatesForSearchRequest = async (searchRequest, maxResults) => {
     };
   }
 
-  if (elevator) {
+  if (elevator!=null) {
     query.elevator = {
       [Op.eq]: elevator
     };