Task

Employee_management/.gitignore

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+node_modules/

Employee_management/app.js

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+var express=require('express');
+var path=require('path');
+var http=require('http');
+var routes=require('./routes');
+var connection=require('express-myconnection')
+var employees=require('./routes/employees');
+var app=express();
+var mysql=require('mysql');
+var db=require("../core/db");
+var settings=require("../settings");
+app.set('port',process.env.PORT||4300);
+app.set('views',path.join(__dirname,'views'));
+app.set('view engine','ejs');
+app.use(express.logger('dev'));
+app.use(express.json());
+app.use(express.urlencoded());
+app.use(express.methodOverride());
+app.use(express.static(path.join(__dirname,'public')));
+if('development'==app.get('env')){
+    app.use(express.errorHandler());
+}
+app.use(
+    connection(mysql,settings.dbConfig,request)
+);
+app.get('/',routes.index);
+app.get('/employees',employees.list);
+app.get('/employees/add',employees.add);
+app.get('/employees/add',employees.save);
+app.get('/employees/edit/:id',employees.edit);
+app.get('/employees/delete/:id',routes.delete_customer);
+app.get('/employees/edit/:id',employees.save_edit);
+app.use(app.router);
+http.createServer(app).listen(4300)
+
+
+// First you need to create a connection to the db
+
+/*con.connect(function(err){
+    if(err){
+        console.log('Error connecting to Db');
+        return;
+    }
+    console.log('Connection established');
+})
+
+con.query('Select * from employees',function(err,rows){
+    if(err)
+        throw err;
+    console.log('Data received from db\n');
+    console.log(rows);
+    for(var i=0;i<rows.length;i++)
+    {
+        console.log(rows[i].name);
+    }
+});
+var employee = { name: 'Winnie', location: 'Australia' };
+con.query('INSERT INTO employees SET ?', employee, function(err,res){
+    if(err) throw err;
+
+    console.log('Last insert ID:', res.insertId);
+});
+con.query(
+    'UPDATE employees SET location = ? Where ID = ?',
+    ["South Africa", 5],
+    function (err, result) {
+        if (err) throw err;
+
+       // console.log('Changed ' + result.changedRows + ' rows');
+    }
+);
+/*con.query(
+    'DELETE FROM employees WHERE id = ?',
+    [5],
+    function (err, result) {
+        if (err) throw err;
+
+        console.log('Deleted ' + result.affectedRows + ' rows');
+    }
+);
+con.end(function(err) {
+    // The connection is terminated gracefully
+    // Ensures all previously enqueued queries are still
+    // before sending a COM_QUIT packet to the MySQL server.
+});*!/*/
+
+
+

Employee_management/core/db.js

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+var sqlDb=require("mysql");
+var settings=require("../settings");
+exports.executeSql=function(sql,callback){
+    var con = mysql.createConnection(settings.dbConfig);
+    con.connect(function(err){
+        if(err){
+            console.log('Error connecting to Db');
+            return;
+        }
+        console.log('Connection established');
+    }).then(function(){
+        var req=new sqlDb.Request(con);
+        req.query('Select * from employees').then(function(recordset){
+            conn.close();
+            callback(recordset);
+        }).catch(function(err){
+            console.log(err);
+            callback(null,err);
+        });
+    })
+};

Employee_management/gruntfile.js

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+module.exports=function(grunt){
+    grunt.initConfig({
+        execute:{
+            target:{
+                src:['app.js']
+            }
+        },
+        watch:{
+            scripts:{
+                files:['app.js'],
+                tasks:['execute'],
+            },
+        }
+    });
+    grunt.loadNpmTasks('grunt-contrib-watch');
+    grunt.loadNpmTasks('grunt-execute');
+}

Employee_management/package.json

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+{
+  "name": "my-todolist",
+  "version": "0.0.1",
+  "main": "settings.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "devDependencies": {
+    "grunt": "^0.4.5",
+    "grunt-contrib-watch": "^0.6.1",
+    "grunt-execute": "^0.2.2"
+  },
+  "author": "",
+  "license": "ISC",
+  "description": "",
+  "dependencies": {
+    "express":"4.14.0",
+    "body-parser":"1.16.0",
+    "mssql":"3.3.0",
+    "cookie-parser":"1.4.3",
+    "jsonwebtoken":"5.5.4",
+    "express-jwt":"5.1.0",
+    "mysql":"2.12.0",
+    "mocha":"3.2.0"
+  }
+}

Employee_management/routes/employees.js

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+exports.list=function(req,res){
+    req.getConnection(function(){connection.query('Select * from employees',function(err,rows){
+        res.render('employees',{page_title:"",data:rows});
+    })})
+}
+exports.add=function(req,res){
+    res.render('add_employees',{page_title:""});
+
+}
+exports.edit=function(req,res) {
+    var id = req.params.id;
+    req.getConnection(function (err, connection) {
+        connection.query('Select * from employees where id=?', [id], function (err, rows) {
+            if (err)
+                console.log("Error selecting:%s", err);
+            res.render('edit_customer', {page_title: "", data: rows})
+        });
+    })
+    res.render('employees',{page_title:""});
+
+}
+exports.save=function(req,res) {
+    var input = JSON.parse(JSON.stringify(req.body));
+    req.getConnection(function (err, connection) {
+        var data={
+        id:input.id,
+            name:input.name,
+            location:input.location
+        };
+        var query = connection.query("INSERT INTO employee set ? ",data, function(err, rows)
+        {
+
+            if (err)
+                console.log("Error inserting : %s ",err );
+
+            res.redirect('/employees');
+
+        });
+
+    //res.render('employees',{page_title:""});
+
+});
+}
+exports.save_edit=function(req,res) {
+    var input = JSON.parse(JSON.stringify(req.body));
+    var id = req.params.id;
+    req.getConnection(function (err, connection) {
+        var data = {
+            id: input.id,
+            name: input.name,
+            location: input.location
+        };
+        connection.query("UPDATE employees set ? WHERE id = ? ", [data, id], function (err, rows) {
+
+            if (err)
+                console.log("Error Updating : %s ", err);
+
+            res.redirect('/employees');
+
+        });
+
+        //res.render('employees',{page_title:""});
+
+    });
+}

Employee_management/routes/index.js

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+/**
+ * Created by lcom64 on 20/1/17.
+ */

Employee_management/settings.js

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+/**
+ * Created by lcom64 on 20/1/17.
+ */
+var path=require('path');
+
+exports.dbConfig={
+    host: "localhost",
+    user: "root",
+    password: "root",
+    database:"mydb"
+};
+

my-todolist/.gitignore

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+node_modules/