create SearchRequest db helper model

app/helpers/db/searchRequest.js

@@ -0,0 +1,15 @@
+"use strict";
+const db = require("../../models/index");
+
+const getSearchRequest = async searchRequestId => {
+  return await db.SearchRequest.findOne({ where: searchRequestId });
+};
+
+const createSearchRequest = async (searchRequestFields = {}) => {
+  return await db.SearchRequest.create(searchRequestFields);
+};
+
+module.exports = {
+  getSearchRequest,
+  createSearchRequest
+};