app.js

var bodyParser = require('body-parser'),
	methodOverride = require('method-override'),
	expressSanitizer = require('express-sanitizer');
	mongoose = require('mongoose'),
	express = require('express'),
	app = express();

mongoose.connect("mongodb://localhost:27017/blogapp");

app.set("view engine","ejs");

app.use(express.static("public"));

app.use(bodyParser.urlencoded({extended : true}));

app.use(expressSanitizer());

app.use(methodOverride("_method"));


var blogSchema = new mongoose.Schema({
	title : String ,
	image : String ,
	body : String ,
	created : {type : Date, default: Date.now}
});

var Blog = mongoose.model("Blog",blogSchema);

app.get("/",function(req,res){
	res.redirect("/blog");
});

app.get("/blog",function(req,res){
	Blog.find({},function(err , blogs){
		if(err){
			console.log(err);
		}
		else{
			res.render("index",{blogs : blogs});		
		}
	});
	
});

app.get("/blog/new",function(req,res){
	res.render("new");
});

app.post("/blog",function(req,res){
	req.body.blog.body =req.sanitize(req.body.blog.body);
	Blog.create(req.body.blog,function(err , newblog){
		if(err){
			console.log(err);
		}
		else{
			res.redirect("/blog");
		}
	});
});

app.get("/blog/:id",function(req,res){
	Blog.findById(req.params.id,function(err ,foundBlog){
		if(err){
			res.redirect("/blog");
		}
		else{
			res.render("show",{blog : foundBlog});
		}

	});
});

app.get("/blog/:id/edit",function(req,res){
	Blog.findById(req.params.id,function(err ,foundBlog){
		if(err){
			res.redirect("/blog");
		}
		else{
			res.render("edit",{blog : foundBlog});
		}

	});
});

app.put("/blog/:id",function(req,res){
	req.body.blog.body =req.sanitize(req.body.blog.body);
	Blog.findByIdAndUpdate(req.params.id,req.body.blog,function(err, updateBlog){
		if(err){
			res.redirect("/blog");
		} else{
			res.redirect("/blog/"+req.params.id);
		}
	});
});

app.delete("/blog/:id",function(req,res){
	Blog.findByIdAndRemove(req.params.id,function(err){
		if(err){
			res.redirect("/blog");
		}
		else{
			res.redirect("/blog");
		}
	});
});
app.listen(3000,function(){
	console.log("BLOG APP HAS STARTED!!!!");
});