Firstly we are relocating to Wellington where Tim will spend his time during the day working for NV Interactive as a Senior Developer.  He works for NV in the Christchurch office (the temp office at the moment) but looks forward to working in the Welly office.

Over the past several months (and a few sleepness nights) Codelab have helped Coolpak coldstores upgrade their corporate website onto the ASP.NET MVC3/razor and Entity Framework which is working really well.

We setup and ran Medicsafe Online Distributors which is a online shop for purchasing Firstaid Kits and supplies.   We have recently handedthis over to Pro+Med which is a firstaid and safety training company.   We have also upgraded Pro+Med’s website to MVC3/Razor using the EF framework.

We have helped Verb implement the Unicef Campaign Monitoring which was featured in the Timaru Herald several months back.

We have created a new windows phone app called Prepare Yourself that helps users prepare for natural disasters.   This was inspired by the first earthquake in Christchurch in September 2010.

We can now annouce that we are merging the design business Madcow Solutions (ran by my wife) into our company so we will be offering a bunch of new services soon.

Once everything is settled we hope to keep this blog updated with technical posts of problems (and solutions) over a vast range of technologies.

You have a form in which the user fills out and clicks a “submit” button that validates their input, does some processing and output’s some results. The problem being the application needs to cater for page refreshes, back buttons and the case of the page being submitted more than once (latency/slow internet connection).

The Solution:

Possible solutions can be (this assumes not using Ajax as a solution), once the user clicks the submit button the server validates the user’s input and has processed the information. Store a unique id in session and redirect to a “complete” page. If the user clicks the back button and resubmits the page, you can build logic to check if a unique id exists in session and if it does, redirect to the complete page without having to re-process the information.

If the user is on the complete page and refreshes the page, because its on a page which has used a GET, there is no processing done and hence no duplication of data.

References:

http://en.wikipedia.org/wiki/Post/Redirect/Get

http://stackoverflow.com/questions/665399/how-do-i-stop-the-back-and-refresh-buttons-from-resubmitting-my-form

Just to give you an update on what we are doing.   We provide support services and technical expertise to a number of open source products including Moodle and Joomla.   Our clients are education institutes including Aoraki Polytechnic and Pro+Med Medic Training.   We also contract to SPF Multimedia to help develop software products for schools (pre-school, primary, high school and tertiary institutes).

We also do custom software development for Pro+Med where they have a dynamic driven C# ASP.NET website running on our own XTS Web Engine.   This will soon be changed to use the ASP.NET MVC framework.

We are also part of the Timaru Kyokushin Karate club where we manage their http://www.timarukyokushin.co.nz website.

On the side, I’m work full-time for Verb Ltd as a Lead Developer/Project Manager.