update RealEstates model, add DB helper functions for RealEstates model

app/helpers/db/realEstate.js

@@ -0,0 +1,38 @@
+"use strict";
+const db = require("../../models/index");
+
+const bulkUpsertRealEstates = async realEstateData => {
+  try {
+    const fieldsToUpdateIfDuplicate = [
+      "realEstateType",
+      "adType",
+      "price",
+      "area",
+      "streetNumber",
+      "streetName",
+      "locality",
+      "municipality",
+      "city",
+      "region",
+      "entity",
+      "country",
+      "locationLat",
+      "locationLong",
+      "title",
+      "shortDescription",
+      "longDescription",
+      "gardenSize",
+      "adStatus",
+      "updatedAt"
+    ];
+    return await db.RealEstate.bulkCreate(realEstateData, {
+      updateOnDuplicate: fieldsToUpdateIfDuplicate
+    });
+  } catch (e) {
+    console.log("Error bulk upserting realEstates : ", e);
+  }
+};
+
+module.exports = {
+  bulkUpsertRealEstates
+};