Mission Data Blog
Louisville-based Web Development & Software Engineering

This past Friday I participated in my first presentation, Seeing Ruby: An Introduction to the Ruby Programming Language at the iTRC in Louisville, Kentucky. Chuck Fouts, Steven Yelton, and I did our level best to introduce our audience to one of our favorite development tools. Our audience was fantastic, and had lots of questions. Everyone stayed a good 15 minutes after the official end to finish Steven’s awesome Rails demo.

Honestly, Ruby sells itself though. People tend to sit up and notice blocks and open classes.

We’ll be posting the presentation slides very soon to the permanent page. And as we take the show to other venues we’ll be tweaking and refining the content. Initial feedback is to beef up the handout with a cheatsheet of language features; our whirlwind tour of the language goes by quickly and some sort of reference will help keep everything together.

Our audience expressed great interest in Ruby on Rails and AJAX, even a few requests for some Seeing More Ruby classes. We’re debating on whether “You’ll Be Seeing AJAX” or “You’ll Be Seeing Rails” next. :) Let us know which you’d rather see.

Incidentally, we’re also taking this presentation to a company for a private show, and we’d be willing to come talk with you and your colleagues as well. Just contact us!

This has been done before with PHP (AJAX upload progress meter for PHP) etc but I needed something a little different because I wanted to upload a file and then have it loaded into a database. I looked around and found that someone had already made something that used the commons file upload package to do the upload part (AJAX Upload progress monitor for Commons-FileUpload Example). It wasn’t exactly what I was looking for but it a good start.

To understand the way this works I think it is easiest to break it down into parts:

1. A file upload extention that counts bytes as they are uploaded
2. An interface that monitors the progress of something running on the server
3. AJAX to pull the monitoring into the current screen

(more…)