commit 1. Finished all folders required.

config/connection.js

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+// Connect Node to MySQL2.
+var mysql2 = require("mysql2");
+
+var connection = mysql.createConnection({
+  host: "localhost",
+  port: 3306,
+  user: "root",
+  password: "2011Blue",
+  database: "burgers_db"
+});
+
+// Make connection.
+connection.connect(function(err) {
+  if (err) {
+    console.error("error connecting: " + err.stack);
+    return;
+  }
+  console.log("connected as id " + connection.threadId);
+});
+
+// Export connection for our ORM to use.
+module.exports = connection;

config/orm.js

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+// Require connection.js
+var connection = require("../config/connection.js");
+
+// Helper function for SQL syntax.
+function printQuestionMarks(num) {
+    var arr = [];
+    for (var i = 0; i < num; i++) {
+        arr.push("?");
+    }
+    return arr.toString();
+}
+
+// Helper function to convert object key/value pairs to SQL syntax
+function objToSql(ob) {
+    var arr = [];
+    // loop through the keys and push the key/value as a string int arr
+    for (var key in ob) {
+        var value = ob[key];
+        // check to skip hidden properties
+        if (Object.hasOwnProperty.call(ob, key)) {
+            // if string with spaces, add quotations (Lana Del Grey => 'Lana Del Grey')
+            if (typeof value === "string" && value.indexOf(" ") >= 0) {
+                value = "'" + value + "'";
+            }
+            // e.g. {name: 'Lana Del Grey'} => ["name='Lana Del Grey'"]
+            // e.g. {sleepy: true} => ["sleepy=true"]
+            arr.push(key + "=" + value);
+        }
+    }
+    // translate array of strings to a single comma-separated string
+    return arr.toString();
+}
+
+var orm = {
+    // Display all burgers in the db.
+    selectAll: function(table, cb) {
+        var queryString = "SELECT * FROM " + table + ";";
+
+        connection.query(queryString, function(err, result) {
+            if (err) {
+                throw err;
+            }
+            cb(result);
+        });
+    },
+    // Add a burger to the db.
+    insertOne: function(table, cols, vals, cb) {
+        var queryString = "INSERT INTO " + table;
+        queryString += " (";
+        queryString += cols.toString();
+        queryString += ") ";
+        queryString += "VALUES (";
+        queryString += printQuestionMarks(vals.length);
+        queryString += ") ";
+
+        console.log(queryString);
+
+        connection.query(queryString, vals, function(err, result) {
+            if (err) {
+                throw err
+            }
+            cb(result);
+        });
+    },
+    // Set burger devoured status to true.
+    updateOne: function(table, objColVals, condition, cb) {
+        var queryString = "UPDATE " + table;
+        queryString += " SET ";
+        queryString += objToSql(objColVals);
+        queryString += " WHERE ";
+        queryString += condition;
+
+        console.log(queryString);
+
+        connection.query(queryString, function(err, result) {
+            if (err) {
+                throw err
+            }
+            cb(result);
+        });
+    },
+    // Delete a burger from the db.
+    deleteOne: function(table, condition, cb) {
+        var queryString = "DELETE FROM " + table;
+        queryString += " WHERE ";
+        queryString += condition;
+
+        console.log(queryString);
+
+        connection.query(queryString, function(err, result) {
+            if (err) {
+                throw err
+            }
+            cb(result);
+        });
+    }
+};
+
+// Export the ORM object in module.exports.
+module.exports = orm;

controllers/burgers_controller.js

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+// Dependencies
+var express = require("express");
+// Import the model to use its db functions for burger.js
+var burger = require("../models/burger.js");
+
+// Create the router for the app, and export the router at the end of your file.
+var router = express.Router();
+// Create routes and set up logic where required.
+router.get("/", function (req, res) {
+    burger.selectAll(function(data) {
+        var hbsObject = {
+            burgers: data
+        };
+        console.log(hbsObject);
+        res.render("index", hbsObject);
+    });
+});
+// Add new burger to the db.
+router.post("/api/burgers", function (req, res) {
+    burger.insertOne(["burger_name", "devoured"], [req.body.burger_name, req.body.devoured], function(result) {
+        // Send back the ID of the new burger
+        res.json({ id: result.insertId });
+    });
+});
+// Set burger devoured status to true.
+router.put("/api/burgers/:id", function(req, res) {
+    var condition = "id = " + req.params.id;
+
+    console.log("condition", condition);
+
+    burger.updateOne({ devoured: req.body.devoured }, condition, function(result) {
+        if (result.changedRows === 0) {
+            // If no rows were changed, then the ID must not exist, so 404.
+            return res.status(404).end();
+        } else {
+            res.status(200).end();
+        }
+    });
+});
+// Delete burger from db.
+router.delete("/api/burgers/:id", function(req, res) {
+    var condition = "id = " + req.params.id;
+    console.log("condition", condition);
+
+    burger.deleteOne(condition, function(result) {
+        if (result.changedRows === 0) {
+            // If no rows were changed, then the ID must not exist, so 404.
+            return res.status(404).end();
+        } else {
+            res.status(200).end();
+        }
+    });
+});
+
+module.exports = router;

db/schema.sql

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+-- Create the database burgers_db.
+CREATE DATABASE burgers_db;
+USE burgers_db;
+
+-- Create the table burgers.
+CREATE TABLE burgers
+(
+    id INT NOT NULL AUTO_INCREMENT,
+    burger_name VARCHAR(50) NOT NULL,
+    devoured BOOLEAN,
+    PRIMARY KEY (id)
+);

db/seeds.sql

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+-- Select burger database --
+USE burgers_db;
+-- Insert rows --
+INSERT INTO burgers (burger_name, devoured)
+VALUES ("Good Burger", FALSE), ("Mondo Bueger", FALSE), ("Ham & Cheese Burger", FALSE);

models/burger.js

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+// Import (require) orm.js into burger.js
+var orm = require("../config/orm.js");
+// The code that will call the ORM functions using burger specific input for the ORM.
+var burger = {
+    // Display all burgers in the db.
+    selectAll: function(cb) {
+        orm.selectAll("burgers", function(res) {
+            cb(res);
+        });
+    },
+    // Add a new burger to the db.
+    insertOne: function(cols, vals, cb) {
+        orm.insertOne("burgers", cols, vals, function(res) {
+            cb(res);
+        });
+    },
+    // Change the devoured status to true.
+    updateOne: function(objColVals, condition, cb) {
+        orm.updateOne("burgers", objColVals, condition, function(res) {
+            cb(res);
+        });
+    },
+    // Delete a burger from the db.
+    deleteOne: function(condition, cb) {
+        orm.deleteOne("burgers", condition, function(res) {
+            cb(res);
+        });
+    }
+};
+
+// Export at the end of the burger.js file.
+module.exports = burger;