findUniqueSites is working, using basic site template /visits

controllers/sites.js

@@ -1,4 +1,5 @@
 var Site = require('../model/Site');
+var Visit = require('../model/Visit');
 
 module.exports = {
   // Find site by ID export
@@ -17,5 +18,14 @@ module.exports = {
       if(err) throw err;
       res.render('index', { title: "Home", sites: sites });
     });
+  },
+  UniqueSiteVisits: function(req, res){
+    Visit.findUniqueSites(function(err, uniqueSites){
+      if(err) throw err;
+      Site.findAllById(uniqueSites, function(err, uniqueSiteVisits){
+        if(err) throw err;
+        res.render('index', { title: "UniqueSiteVisits", sites: uniqueSiteVisits });
+      });
+    });
   }
 }

database/fill-visits.js

@@ -3,7 +3,9 @@ var con = require('./db');
 sql = "INSERT INTO visits (date, img, site_id) VALUES ?";
 val = [
   ['10-15-2019','https://seanland.ca', '1'],
-  ['10-17-2019','https://seanland.ca', '1']
+  ['10-17-2019','https://seanland.ca', '1'],
+  ['01-17-2020','https://seanland.ca', '134'],
+  ['11-23-2019','https://seanland.ca', '15']
 ];
 
 con.query(sql, [val], function(err, res){

model/Site.js

@@ -30,6 +30,25 @@ Site.findById = function(id, callback){
   });
 };
 
+// Finding all sites by IDs.
+Site.findAllById = function(ids, callback){
+  var sql = "SELECT * FROM sites WHERE id in (?)";
+  var arr = [];
+
+  con.query(sql, [ids], function(err, result){
+    if (err) return callback(err);
+    // if not site is found.
+    if (result[0] == undefined) callback(404);
+    else {
+      console.log("Site.findAllById: " + result.length + "sites retrieved!");
+      result.forEach(site => {
+        arr.push(new Site(site));
+      });
+      callback(err, arr);
+    }
+  });
+};
+
 // get a listing of all sites
 Site.getAll = function(callback){
   var sql = "SELECT * FROM sites";

model/Visit.js

@@ -20,3 +20,25 @@ Visit.findBySite = function(id, callback){
     }
   });
 };
+
+Visit.findUniqueSites = function(callback){
+  var sql = "SELECT DISTINCT site_id FROM visits";
+
+  con.query(sql, function(err, result){
+    if(err) return callback(err);
+    if(result[0] == undefined) callback(404);
+    else {
+      var ids = [];
+
+      result.forEach(id => {
+        ids.push(id.site_id);
+      });
+      console.log(ids);
+      console.log("Visit.findUniqueSites: " + ids.length + " unique sites visited!");
+
+      callback(err, ids);
+    }
+  });
+}
+
+module.exports = Visit;

routes/index.js

@@ -4,5 +4,6 @@ var router = express.Router();
 var sitesController = require('../controllers/sites')
 
 router.get('/', sitesController.getAll);
+router.get('/visits', sitesController.UniqueSiteVisits);
 
 module.exports = router;