diff --git a/JSONtoMongo.js b/JSONtoMongo.js
index f8429e9a..bf50fe1b 100755
--- a/JSONtoMongo.js
+++ b/JSONtoMongo.js
@@ -10,14 +10,25 @@ var fs = require('fs'),
     config = require('./config');
 
 /* Connect to your database */
-
+mongoose.connect(config.db.uri);
 /* 
   Instantiate a mongoose model for each listing object in the JSON file, 
   and then save it to your Mongo database 
  */
+var fs = require('fs');
+var listingData;
+fs.readFile('listings.json', 'utf8', function(err, data) {
 
+  if (err) throw err;
+    listingData = JSON.parse(data).entries;
+  var size = listingData.length;
+   console.log("size is :"+size);
 
+   for(var i = 0;i<size;i++){
+    var bulidingData = new Listing(listingData[i]);
+    bulidingData.save(function(err){
+	 if (err) throw err;
 /* 
   Once you've written + run the script, check out your MongoLab database to ensure that 
   it saved everything correctly. 
- */
\ No newline at end of file
+ */
diff --git a/ListingSchema.js b/ListingSchema.js
index 7f48c6cb..70f1eac9 100755
--- a/ListingSchema.js
+++ b/ListingSchema.js
@@ -5,11 +5,22 @@ var mongoose = require('mongoose'),
 /* Create your schema */
 var listingSchema = new Schema({
   /* your code here */
+ code: {type: String, required: true},
+  name: {type: String, required: true},
+  coordinates: {latitude: Number, longitude: Number},
+  address: String,
+  created_at: Date,
+  updated_at: Date
 });
 
 /* create a 'pre' function that adds the updated_at (and created_at if not already there) property */
 listingSchema.pre('save', function(next) {
   /* your code here */
+  this.updated_at = new Date();
+  if (!this.created_at){
+    this.created_at = this.updated_at;
+  }
+  next();
 });
 
 /* Use your schema to instantiate a Mongoose model */
diff --git a/queries.js b/queries.js
index 09af6d32..08f09c0d 100755
--- a/queries.js
+++ b/queries.js
@@ -5,6 +5,11 @@ var findLibraryWest = function() {
     Find the document that contains data corresponding to Library West,
     then log it to the console. 
    */
+  Listing.find({ code: 'LBWEST' , name : 'Library West'}, function(err,listing) {
+      if (err) throw err;
+
+      console.log(listing);
+  });
 };
 var removeCable = function() {
   /*
@@ -12,20 +17,41 @@ var removeCable = function() {
     on cable TV. Since we live in the 21st century and most courses are now web based, go ahead
     and remove this listing from your database and log the document to the console. 
    */
+    Listing.findOneAndRemove({ code : 'CABL' }, function(err) {
+        if (err) throw err;
+
+        console.log('CABL deleted!');
+    });
 };
-var updatePhelpsLab = function() {
-  /*
-    Phelps Laboratory's address is incorrect. Find the listing, update it, and then 
+var updatePhelpsMemorial = function() {
+    /*
+    Phelps Memorial Hospital Center's address is incorrect. Find the listing, update it, and then 
     log the updated document to the console. 
    */
+    Listing.find({name : 'Phelps Memorial Hospital Center'}, function(err, listing) {
+        if (err) throw err;
+
+        listing.address = 'Gainesville, FL';
+
+        listing.save(function(err) {
+            if (err) throw err;
+
+            console.log('Listing successfully updated!');
+        });
+    });
 };
 var retrieveAllListings = function() {
   /* 
     Retrieve all listings in the database, and log them to the console. 
    */
+  Listing.find( {}, function(err, listings) {
+      if (err) throw err;
+
+      console.log(listings);
+  });
 };
 
 findLibraryWest();
 removeCable();
-updatePhelpsLab();
+updatePhelpsMemorial();
 retrieveAllListings();