I recently published a blog post about a portfolio project I am developing using the LAMP stack, Bootstrap 4, jQuery, and the MVC (Model-View-Controller) design pattern in core PHP. In this post, I will introduce an additional feature I integrated into the existing project.

Image by xresch from Pixabay

Self-Promotion:

If you enjoy the content written here, by all means, share this blog and …

I am super pleased to share that I have completed and uploaded my first (that I can share at least) personal portfolio piece written in PHP to a subdomain on my personal hosting server located at walk.openlamp.tech. Over the better part of the last year, I have developed a custom reporting dashboard written in PHP for my (current) employer, but do not share any of that work as it is proprietary and not owned by me. However, for a personal project, I can share far and wide. In this post, I provide a brief overview of my simple (in theory at least) application/site, built on the LAMP stack using the MVC (Model-View-Controller) design pattern in core PHP along with Bootstrap 4, jQuery, and MySQL.

Image by …

I recently tried my hands at TDD to develop a basic ToDo app using QUnit as the testing framework.

Here is the link to the application demo.
I have written both unit and integration / functional tests while developing this app. The source code can be checked here.
To run and see the results of tests, refer below links:

Unit test results
Integration / Functional test …

Excerpt from http://paper-leaf.com/alton-jquery-scroll-jacking-plugin/
"Scrolljacking basically means we replace native scrolling (what you’re used to) with targeted scrolling: when the user initiates a scroll, either with their mouse or keyboard, scrolljacking takes them to an exact vertical point on the screen (for example, the top of the next content container). When done properly, scrolljacking can be a part of a unique, enjoyable online experience."The above definition makes it quite clear what scrolljacking is.

Excerpt from http://www.sitepoint.com/scrolljacking-accessibility/
"Recently, Apple came up with the new concept of ‘scrolljacking’ in their product pages. This is method that ‘re-wires’ the behavior your browser’s …

I’ve continued building on my MariaDB GIS and node.js example application that I wrote about two weeks back, https://blog.mariadb.org/node-js-mariadb-and-gis/. The application shows how to load GPX information into MariaDB, using some MariaDB GIS functionality, and making use of the node.js platform together with MariaDB’s non-blocking client.

With the GPX data converted into GIS points in the MariaDB database, I wanted to further expand a little on both the GIS aspect and also look at how some additional data could be shown in the application by using jQuery’s Ajax calls to update a piece of the web based application UI.

To start with, an interesting thing to do when you have a bunch of GIS points in a …

Unfortunately jQuery doesn’t come with default form validation to check for ip-addresses or subnet masking. So without a long winded explanation here’s the code. Just include this as a separate JS file like the rest of your page’s JS.

// 'ipv4': IPv4 Address Validator
$.validator.addMethod('ipv4', function(value) {
    var ipv4 = /^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$/;    
    return value.match(ipv4);
}, 'Invalid IPv4 address');

// 'netmask': IPv4 Netmask Validator
$.validator.addMethod('netmask', function(value) {
    var mask = /^[1-2]{1}[2,4,5,9]{1}[0,2,4,5,8]{1}\.
[0-2]{1}[0,2,4,5,9]{1}[0,2,4,5,8]{1}\.
[0-2]{1}[0,2,4,5,9]{1}[0,2,4,5,8]{1}\.
[0-9]{1,3}$/;    
    return value.match(mask);
}, 'Invalid IPv4 netmask');

You can use it like this.

$("#myform_here").validate({
    rules:{
        ipaddress:{
            required:true,
            ipv4:true
        },
        netmask:{ …

I was giving a presentation of the MySQL’s Enterprise Monitor* application to a client recently. I was demonstrating the “graphs” section of MEM, where you can monitor MySQL sessions, connections, replication latency and more with 60+ graphs. Usually, you view the graphs from within the MEM Enterprise Dashboard (via a web browser). But the client asked if there was a way to automatically download graphs. I wasn’t sure why he wanted to download the graphs (I didn’t ask), but I knew it wasn’t possible by using MEM alone. However, in the past I have written Perl scripts to automatically download files from web sites, so I thought I would see if it was possible with MEM.

If you have ever built a form on a web page, you might have used a drop-down menu to display the choices available for a particular field. With a drop-down menu, you restrict the choices a user may select so that the user doesn’t enter invalid data (among other reasons). If a user misspells an entry, then a subsequent search for that value would not produce a found result.

A friend of mine who runs an online forum sent me an email about a problem he was having. He was trying to modify an existing registration web page using jQuery to auto-populate the state names, and then pass the state abbreviation back to his MySQL database. Believe it or not, he was actually having problems with people knowing their own state abbreviation. He had searched and found an example of what he wanted to do, but he couldn’t get it to work. So, I took the …

Marten Mickos joins Eucalyptus. Novell rejects Elliot. Perspectives on OSBC. And more.

Follow 451 CAOS Links live @caostheory on Twitter and Identi.ca
“Tracking the open source news wires, so you don’t have to.”

# Mårten Mickos was named CEO of Eucalyptus Systems.

# Novell’s board rejected Elliot’s takeover proposal as inadequate, will review other alternatives.

# North Bridge Venture Partners published the results of its Future of Open Source survey.

# Rob Bearden was appointed executive chairman of the board of Pentaho.

# The Eclipse Foundation …

Introduction

StackOverflow is an amazing site for coding questions. It was created by Joel Spolsky of joelonsoftware.com, Jeff Atwood of codinghorror.com, and some other incredibly smart guys who truly care about user experience. I have been a total fan of SO since it went mainstream and it's now a borderline addiction (you can see my StackOverflow badge on the right sidebar).

The Story

Update 6/21/09: This server is currently under very heavy load (10-200), even with caching plugins enabled. Please bear with me as I try to resolve the situation.

Feel free to …