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Clojure Web Development Essentials

You're reading from   Clojure Web Development Essentials Develop your own web application with the effective use of the Clojure programming language

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Product type Paperback
Published in Feb 2015
Publisher
ISBN-13 9781784392222
Length 232 pages
Edition 1st Edition
Languages
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Author (1):
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Ryan Baldwin Ryan Baldwin
Author Profile Icon Ryan Baldwin
Ryan Baldwin
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Table of Contents (14) Chapters Close

Preface 1. Getting Started with Luminus 2. Ring and the Ring Server FREE CHAPTER 3. Logging 4. URL Routing and Template Rendering 5. Handling Form Input 6. Testing in Clojure 7. Getting Started with the Database 8. Reading Data from the Database 9. Database Transactions 10. Sessions and Cookies 11. Environment Configuration and Deployment A. Using Korma – a Clojure DSL for SQL Index

Extending the application requirements in brief


Our pointy-haired marketing wizard (me) has decided that our hipstr application requires the ability to add a new artist and album (with a release date). The form should be validated, ensuring that all of the data is appropriate, before sending it off to the database. If, for whatever reason, the inserts into the database fail, then nothing should be changed. Also, if there are any validation errors with the form, we want to show an appropriate message to the user. Finally, I want to be able to use this form anywhere in the site with minimal modifications and maximum code reuse. (Say whaaaaaaat?!)

Creating the add artist/album form

Let's brainstorm what this magical and revolutionary piece of functionality should look like. Based on what currently exists, the following idea should suffice:

This seems pretty doable, and it satisfies all of our requirements. First things first though: Let's create the HTML for the form.

Creating the form

We'll assume...

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