Data submitted to a database via AJAX or other means sometimes includes a non-breaking space ( ). How this entity is displayed depends on the character encoding of the database and its tables. Using the default Latin1 encoding, a non-breaking space is displayed as this little funny character right here -> Â To have it displayed… Read More »
If you have an HTML table with multiple columns it likely doesn’t render very nicely on a small smartphone. One way to solve this problem is to hide lower priority columns when the table is viewed from a mobile device. First, create a new class in your CSS file, under the @media tag. For example… Read More »
So you’ve made some awesome tweaks to your WordPress theme, but then you go ahead and update it with the latest version from the author and… All your brilliant customizations have been lost! If you have made customizations directly to a WordPress theme, they will be wiped out whenever you install an update from the… Read More »
Symptom: After removing an AMD graphics card (to use onboard integrated graphics), Cinnamon crashes repeatedly after logging in. Cause: Cinnamon may still be referencing the old video drivers. Solution: Uninstall the proprietary AMD graphic card drivers. Troubleshooting Steps: List installed AMD packages -> dpkg -l *fglrx* Remove the installed AMD packages and drivers with sudo… Read More »
The Raspberry Pi is an inexpensive computer about the size of a credit card that was designed to promote the teaching of computer science. In the spirit of openness, this post focuses on open source games whose code can be studied, analyzed, customized and perhaps even improved upon, by anyone. I’ll start off by explaining… Read More »
Symptom: LibreOffice Writer does not detect spelling errors. Misspelled words are not underlined in red and manually running spell check finds no errors. Cause: By default, the Canadian language doesn’t have a dictionary associated with it. What gives, eh? Solution: Here are two ways to solve this problem. 1. You can change Writer to use… Read More »
In this post you will learn how to use the freely available Tablesorter jQuery plugin, which allows you to sort HTML table columns alphanumerically by clicking the column header. If you want your users to be able to sort tables and save the order, check out this post instead. Setup Tablesorter Make sure you have… Read More »
How do we allow users to reorder the rows of an HTML table and then save those changes back to a table in a MySQL database? This post will explain how to do it in two steps: Enable table drag and drop functionality with jQuery UI Write any changes the user makes back to the… Read More »
Symptom: When attempting to install a new package using apt, an error message regarding unmet dependencies is displayed and suggests using apt-get -f install to fix the problem. However, sudo apt-get -f install throws an error about no disk space. Cause: Updates have failed due to low disk space and resulted in dependency problems. Solution:… Read More »
Drupal is a free and open-source content-management framework written in PHP and distributed under the GNU General Public License. In this post, you will learn how to install Drupal on a LAMP Ubuntu server. Installation Download the latest stable version of Drupal from their website Copy the downloaded file to the /var/www/html directory of your… Read More »