Knoldus Blogs

A simple CRUD application in Play! Framework using Kundera and Cassandra as a Database.

June 22, 2014June 23, 2014Akka, Architecture, Bootstrap, Cassandra, CSS, Future, JavaScript, jQuery, Kundera, Non-Blocking, Play Framework, Reactive Application, Studio-Scala, WebAkka, Cassandra, Clean code, Code Quality, Javascript, JPA, jquery, knol, Kundera, Play framework

Reading Time: < 1 minute playing-kundera-cassandra: This is a classic CRUD application, backed by Play 2.3.0, Kundera & Cassandra. It demonstrates: Accessing a Cassandra database, using Kundera. Achieving, Futures to use more idiomatic error handling. Accessing JS & CSS libraries by WebJars. Bootswatch-United with Twitter Bootstrap 3.1.1 to improve the look and feel of the application Instructions :- The Github code for the project is at : playing-kundera-cassandra Clone the project Continue Reading

KnolX – jQuery Form Validation

November 7, 2013November 7, 2013AJAX, Studio-Scala, WebJavascript, jquery, jQuery form validation, knol, Play framework, scala

Reading Time: < 1 minute This Wednesday, I have presented on jQuery Form Validation at KnolX. Live application can be access here : Form validation with jQuery in Play Framework Github code can be download here : jQuery-form-validation Lets have a look at the stuff:

ScalaKnol: Understanding Traits as Stackable Modifications

November 27, 2012Studio-Scalaknol, scala, Traits

Reading Time: 3 minutes Traits can be used to modify the methods of a class. The way such modifications are carried out is such that they can stack modifications with each other. Let us take an example. Say, there is a class called ImageProcessor which processes images. Now there are a few modifications required before the image is actually uploaded to your server. If you are using Facebook then Continue Reading

ScalaKnol: Understanding Uniform Access Principle

November 21, 2012Studio-Scalaknol, principle, scala

Reading Time: 2 minutes The ScalaKnol series attempts to share a nugget of Scala wisdom every few days or sometimes few times a day. Keep tuned. Today we would look at the Uniform Access Principle. The principle states that the client code or the calling code should not be affected by the decision to implement an attribute as a field or a method. Hence essentially irrespective of whether the Continue Reading

ScalaKnol: Why returning a value in finally is a bad idea

November 14, 2012November 27, 2012Studio-Scalacode language, explicit exception, expressions, knol, scala, software, technology

Reading Time: < 1 minute For those of us who are coming from an imperative background, we are used to using try catch rather losely. Ok, I am not trying to generalize here but a majority of us do so. When we come to the Scala world, we realise that like other expressions in scala, try-catch-finally would result in a value. The general practice recommended is that finally should be Continue Reading