This guide will take you through the process of installing the Chamilo e-learning portal, version 1.11.4 on a fresh Digital Ocean instance,on an Ubuntu 17.04 64bit distribution (also works with minor changes with Ubuntu 18.04) To follow this guide, you should be familiar with the notion of SSH keys and installing/configuring server software on Ubuntu […]
In this article, we’ll talk about managing an LMS when all institutional assignments handed in by students have to be handed in through the LMS, and what that means if you have several thousand students. This case is based on one of our customers which provides in-class English courses to about 55,000 students in a […]
Redmine is a project management system and a support ticket management system. See other articles on this blog and my video on YouTube about a previous version of Redmine for more info. At some point (and this only happened to us after years of use and more than 10.000 tickets/issues registered), you might want to […]
This guide will take you through the process of installing Chamilo 1.10 (from Github sources) for testing on a fresh Digital Ocean instance, on an Ubuntu 16.04 distribution. A previous article on this blog explains how to install Chamilo 1.9 using Juju Charms and another article explains how to install 1.10.2 on Ubuntu 15.10. The […]
If you design your icons in SVG with Inkscape and wonder how to quickly make an “inactive” icon in grayscale, here’s a quick fix (at least for Linux users): inkscape -f teacher_na.svg –verb EditSelectAll –verb org.inkscape.color.desaturate.noprefs –verb FileSave –verb FileQuit This will edit your file in-place (so you need to take a copy first) and […]
In Chamilo LMS 1.9.* (meaning 1.9.0 up to 1.9.10), deleting some files from the web interface don’t always delete them on disk. While this means that, sadly, you don’t get to get space back when cleaning up your courses, you can at least recover them (or your administrator can) if you deleted them by mistake. […]
This is a short note for ourselves, but it might help others considering the (new for now) rules of Google indexing of non-mobile sites. Drupal 6 does not really provide all the stuff that would be really useful to switch the theme of your site depending on the browser being on a mobile device or […]
dirname(__FILE__) and __DIR__ give exactly the same result in PHP, although one (__DIR__) is evaluated at compile-time, while the other (dirname(__FILE__)) has at least part of it (the function) evaluated at execution time. Ever wondered what the difference is, in terms of efficiency, between the two? I’ve written a *very* simple script to try it […]
If you have to make Captivate-generated SCORM 1.2 content in your (web) platform and you want *more* information about what’s going on, this guide might help. One of the trickiest things about Captivate and SCORM is that Captivate doesn’t handle the credit/no-credit (cmi.core.credit) very well. This parameter, in combination with cmi.core.lesson_mode should let you retake […]
For those of you pushing your MySQL instances to higher levels, you’ll have realized at some point that all InnoDB tables share their indexing space into a single file (ibdata1, usually). This has several very bad outcomes: the ibdata1 file becomes huge after some time (we’ve seen it pass the 8GB bar) starting the MySQL […]
This article is an extension of the previous article about storing sessions in Memcached with PHP. Using Memcached for sessions storage is generally a matter of speed (storing them in memory is faster than on disk) and of scalability (using a Memcached server allows you to have several web servers serving the same PHP application […]
Sometimes you find a perl in some code and it might take you a while to understand. In the sessions management code of Chamilo, I found this the other day, then decided to leave it for later because I was in a hurry. Then today, I found it again, and again… it took me about […]
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