Building Large Scale Javascript Application

Digital World 2014 was a 4 day (4th – 7th June, 2014) ICT event at Bangladesh. It was organized by ICT Division of Telecom and IT Ministry of the country. There was a full series of technical sessions with various interesting topics throughout the event.

One of them was Building Large Scale Javascript Application. It was presented by me together with Emran Hasan, CTO of eMicrograph. Here is the slide that I prepared in very short time.


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Converting Doctrine MongoDB Document toJSON or toArray

This is a common need to convert Doctrine ODM Documents to simpler format. Generally we need to convert them to Array or serialized as JSON. And there are many ways to do it. So, here is my way, my simple Trait that simply works.

By useing this trait you’ll get 2 methods to convert your Document to Array or JSON. It will take care of embedded Documents too.

<?php
// Assuming in a Symfony2 Controller
// If you're not, then make your DocmentManager as you want
$dm = $this->get('doctrine_mongodb')->getManager();
$report = $dm->getRepository('YourCoreBundle:Report')->find($id);

// Will return simple PHP array
$docArray = $report->toArray();

// Will return JSON string
$docJSON = $report->toJSON();

How to use?

3 simple steps.

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PHP HTTP extension not working?

The version 2.x.x of PHP HTTP extension is totally different from it’s version 1.x. And it’s not backward compatible at all. So, if you have updated the http extension or installed updated version, you may see it’s not working in previously working source.

So, what to do now? The important thing to note is, http://php.net/http has the documentation for older version (version 1.x.x). Here are 2 links that can help you to quickly start the using new version or to fix your old code.

Happy coding!

Backbone.Marionette + RequireJS + Bootstrap boilerplate

Few days ago, I was searching around for a boilerplate setup for Backbone.Marionette with RequireJS. I was looking for something that is ready for use instantly without any prerequisite or additional dependency. I found few good solutions. But unfortunately none of them seems to be as simple and straightforward as I was expecting.

marionette is ready

So, I had to write my own boilerplate.
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Rounded thumb image with CSS 3

In modern Mobile apps, RIA or fancy websites like to display thumb images with a little rounded corners. We can do it on web with very little effort using a little CSS3 technique.

Rounded thumbnail

Just 3 simple 3 steps:

  1. Instead of using img, use a placeholder like a or span. Make it display:block.
  2. Place the image as background image of this placeholder.
  3. Set a border radius and a little shadow for the placeholder.

Sample CSS and HTML code:

<style type="text/css">
	a.user-image {
		background: transparent no-repeat top left;
		display: block;
		text-indent: -999em;
		width: 50px;
		height: 50px;
		border-radius: 5px;
                box-shadow: 0px 0px 3px #666;
	}
</style>

<a class="user-image" href="http://www.facebook.com/ajaxray" style="background-image: url(http://graph.facebook.com/667896332/picture)" title="Visit Anis's profile">Anis Ahmad</a>

<!--
Post: http://ajaxray.com/blog/rounded-thumb-image-with-css-3
Demo: http://ajaxray.com/Examples/cropped-thumb.html
-->

See code on Gist.

You’re done! Check the live demo.

Kohana 3.x Log Viewer module

Kohana Logs are a good way of debugging and monitoring application flow. It has various types of log writers for storing and showing logs. But the most commonly used one is the File Writer. One painful thing with this file logs is, downloading, reading and clearing when testing on a remote server.  To reduce this pain, I wrote a module to explore the log files on server with a beautiful interface. It may help many of you who are developing with Kohana.

You can get it from github –  https://github.com/ajaxray/Kohana-Log-Viewer

Kohana Log Viewer screenshot

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The first Kohana book : Kohana 3.0 Beginner’s Guide

Kohana 3.0 Beginner’s Guide Cover page

Kohana 3.0 Beginner’s Guide

Codeigniter was my first PHP framework. Though it works nicely for wide range of app types, slowly I felt uncomfortable in some points. For example, lack of OOP practices, untestable structure etc. (Sorry to say, unit-testing in codeigniter was a horror!) Later, among PHP frameworks, I worked a lot with Zend Framework and a little with Symfony . One day Emran Hasan shared IBuildings article about HMVC which presented Kohana as example HMVC framework. That was the starting, in a few days Kohana took the position of primary PHP framework for me. I built website, Enterprise application, Service layer for SOA and few more apps with Kohana comfortably.

But when framework newbies asks me with which one he should start, need to think twice before suggesting Kohana. The main reason is, it’s documentation was not as rich as Codeigniter or Zend Framework. And there was no book. BTW, Kohana unofficial wiki is a BIG try to help in this issue. Besides, recently Packt has published the first book on Kohana “Kohana 3.0 Beginner’s Guide“. Jason D. Straughan wrote this book for Kohana version 3.x. Few days ago, Snehman Kohli from Packtpub has contacted me and requested for reviewing this book. As a fan of Kohana, I’ve happily accepted. So, here is my view on this book.

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jQuery and jQuery Mobile on JSCon 2011, Dhaka

PHPXperts group  is one of the most active PHP community in Asia. They have arranged the first JavaScript Conference of Bangladesh on September 17, 2011 at AIUB Auditorium. It was a cool event with 250+ participants.

Our (me and Mohammad Zakir Hossain Raju) session was about jQuery and jQuery Mobile. Here is the slide -

BTW, SlideShare has featured this slide on homepage.

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Let's do with Drupal – Simplified Admin Panel

As you (if you’v at least installed and explored Drupal) know, Drupal‘s Admin panel is not comfortable for clients. It’s mostly developer centric and not similar to other common content managing panels. But, sometimes clients may need to manage some type of content. Recently I’ve faced this situation and made a simple, generic admin panel that only offers managing selective contents. Now I am going to tell you the how I’v done it. If you follow the steps, it should take hardly 30 minutes.

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