add new view and controller for location

app/controllers/location.js

@@ -0,0 +1,51 @@
+const { currentRERequest } = require("../helpers/url");
+
+const getLocation = async (req, res) => {
+  const title = "U kojem naselju tražite nekretninu?";
+  const nextStep = req.query.nextStep || "/";
+
+  res.render("location", {
+    nextStep,
+    title
+  });
+};
+
+const postLocation = async (req, res) => {
+  let request = await currentRERequest(req);
+
+  const northWest = [req.body.west, req.body.north];
+  const northEast = [req.body.east, req.body.north];
+  const southEast = [req.body.east, req.body.south];
+  const southWest = [req.body.west, req.body.south];
+
+  request.locationInput =
+    req.body.locationInput && req.body.locationInput.length > 0
+      ? req.body.locationInput
+      : null;
+
+  request.boundingBox = {
+    type: "Polygon",
+    coordinates: [[northWest, northEast, southEast, southWest, northWest]]
+  };
+
+  let locationInputData;
+  if (req.body.locationInputData) {
+    try {
+      locationInputData = JSON.parse(req.body.locationInputData);
+    } catch (e) {
+      locationInputData = null;
+    }
+  }
+
+  await request.save();
+
+  const nextStepPage = req.query.nextStep || "povrsina";
+  const nextStepUrl = `/${nextStepPage}/${request.uniqueId}`;
+
+  res.redirect(nextStepUrl);
+};
+
+module.exports = {
+  getLocation,
+  postLocation
+};