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Web Development with MongoDB and Node.js

You're reading from   Web Development with MongoDB and Node.js Build an interactive and full-featured web application from scratch using Node.js and MongoDB

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Product type Paperback
Published in Sep 2014
Publisher Packt
ISBN-13 9781783987306
Length 294 pages
Edition 1st Edition
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Author (1):
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Jason Krol Jason Krol
Author Profile Icon Jason Krol
Jason Krol
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Table of Contents (14) Chapters Close

Preface 1. Welcome to JavaScript in the Full Stack 2. Getting Up and Running FREE CHAPTER 3. Node and MongoDB Basics 4. Writing an Express.js Server 5. Dynamic HTML with Handlebars 6. Controllers and View Models 7. Persisting Data with MongoDB 8. Creating a RESTful API 9. Testing Your Code 10. Deploying with Cloud-based Services 11. Single Page Applications with Popular Frontend Frameworks 12. Popular Node.js Web Frameworks Index

Updating the image controller


Let's create the controller and view model for the image page. The controller for the image will be a little more complex, as we'll write the logic to handle uploading and saving of the image files via the form on the homepage.

Displaying an image

The index function in the image controller will look almost identical to the index function from the home controller. The only difference is that instead of generating an array of images, we will build a view model for a single image. However, the view model for this image will have a little more information than the one from the homepage, since we are building a page that renders a more detailed view of an image (versus the thumbnail collection on the homepage). The most noteworthy inclusion is that of a comments array for the image.

Taking another look at the original index function in our controllers/image.js file, we can see the simple existing res.render line of code:

res.render('image');

We want to replace this line...

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