Show or Hide in Joomla With Conditional Content

Joomla With Conditional Content

If you have worked in Joomla for any time, you've probably used the excellent extensions by Peter at Regular Labs. Recently, he unveiled a very useful new extension called Conditional Content.

Previously, it was difficult to get full control over the "4 Ws" of how your content displayed ... who, what, where, and when. This required multiple Joomla extensions and often a bit of PHP coding. Conditional Content makes it much easier to show your content only under certain conditions.

Read more: Show or Hide in Joomla With Conditional Content

Say Hello to OSCampus, the New Joomla LMS

OSCampus, the New Joomla LMS

Today we're delighted to officially launch OSCampus.

OSCampus is the best way to build an online training site with Joomla.

OSCampus is incredibly robust and is already used by 1,000's of people every week. OSCampus runs the video training on OSTraining, and its architecture is the basis forJoomlashack University and the official Joomla.org training site!

OSCampus allows you to publish online classes. You can use OSCampus to create classes with multiple lessons and quizzes. The lessons can consist of anything from videos or text, to presentations and PDFs. Your lessons can be YouTube or Vimeo Videos, Slideshare or Google presentations, simple text or complex code.

Read more: Say Hello to OSCampus, the New Joomla LMS

We Updated ABC, our Joomla Template for Schools and Education

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Check out the new version of ABC, a colorful Joomla template that's designed for education sites.

This update to ABC features a major design refresh. If you want to create sites for a school or online course, then ABC is an excellent template choice. ABC has excellent support for OSCampus, the new Joomla LMS.

We've also added support for one of our popular commercial extensions included for free: Easy Social Icons. If you buy ABC, then you'll also get access to Easy Social Icons.

Additionally, ABC is now compatible with the very last version of the Wright framework.

Read more: We Updated ABC, our Joomla Template for Schools and Education

Meet OSTimer Pro, the Countdown Extension for Joomla

OSTimer Pro is Here, the Professional Countdown Extension for Joomla

OSTimer is the best countdown extension for Joomla.

Today, we're happy to announce the release of OSTimer Pro!

OSTimer Pro includes extra layout options, and the ability to customize the color of your countdown clock.

Additionally, we've done a lot of work to improve the admin UI for both the Free and Pro versions of OSTimer.

Read more: Meet OSTimer Pro, the Countdown Extension for Joomla

Meet OSDonate Pro, the PayPal Donation Extension for Joomla

odonate pro joomla

OSDonate is the best PayPal donation extension for Joomla.

Today, we're happy to announce the release of OSDonate Pro!

OSDonate Pro includes extra layout options, and the ability to customize the color of your donation form.

Additionally, we've done a lot of work to improve the admin UI for both the Free and Pro versions of OSDonate.

Read more: Meet OSDonate Pro, the PayPal Donation Extension for Joomla

We Updated Mondrian, our Landing Page and Events Joomla Template

mondrian logo

Check out the new version of Mondrian, a beautiful Joomla template that's designed to showcase events.

This update to Mondrian features a major design refresh. If you're holding an event, then Mondrian will be an exciting and stylish choice.

We've also added support for two of our popular commercial extensions included for free: OSTimer Pro and Shack Slides. If you buy Mondrian, then you'll also get access to both extensions.

Additionally, Mondrian is now compatible with the very last version of the Wright framework.

Read more: We Updated Mondrian, our Landing Page and Events Joomla Template

Learn to Build Joomla Plugins at Joomlashack University

How to Develop Joomla Plugins

Do you want to become a Joomla developer? Joomlashack University has the classes to help you.

Last month, Joomlashack published class called "How to Develop Joomla Modules".

This week we have a new class called, "How to Develop Joomla Plugins".

If you watch the first class you'll learn the basics of Joomla development. In this second class, you'll learn how to build plugins. These powerful extensions act on Joomla's trigger events to perform almost any task that you can imagine.

Read more: Learn to Build Joomla Plugins at Joomlashack University

Error decoding JSON data: Syntax error

With the release of Joomla 3.6.3, some sites started to get this error message:

"Error decoding JSON data: Syntax error".

This tutorial will explain the issue and how to resolve it.


Background info

Joomla stores some of its data as JavaScript Object Notation (JSON). JSON has syntax rules that describe how the data must be stored. If the data gets corrupted and doesn't maintain the rules, an error occurs.

In version 3.6.3, the Joomla core started to report more errors if the data is stored incorrectly. Now if the JSON syntax is broken, the error is triggered and displayed. So in other words, Joomla 3.6.3 isn't causing the problem ... it's just doing a better job of reporting it.

The root cause of the error

The issue is with the data. So any fix that you find for modifying core files is incorrect. Plus, core changes will be lost when you update Joomla.

The key to fixing the issue is fixing the data itself. But where is the data? It's in the database of course. And it's usually in a "params" field in the _extensions table or _modules table.

How to fix the error

Now that we know where to look, how do we spot the issue and how do we fix it? Unfortunately, this part is tricky. Sometimes it's obvious though. The following is broken JSON:

{""}

And it can be fixed with:

 update `abc_modules` set params="" WHERE params = "{\"\"}";

Change "abc" to your table prefix. Also, run the above on your _extensions table too. To do that, switch `abc_modules` to `abc_extensions` .

The code above will fix the most common issues that have been spotted so far. But there are other syntax errors that can cause the issue. And they are usually harder to spot.

Here's one from a site I debugged earlier:

{"administrator":"\"en-GB\"","site":"\"en-GB\""}

It was in the com_languages param. I'm not sure of the cause, but it might have been due to Magic Quotes GPC being enabled at one point.

To find others, you'll have to manually look through the "params" column for potential issues.

Rob Went has released a small script that automates much of the process.

Also, if the issue is found in a 3rd-party extension, update the extension. If you don't have admin access, disable the extension via the database, then update.

Two extensions with known issues are JB Library Plugin and JUpgrade. JB Library's team has already released a fix for it.

You Can Now Include All Types of Media in OSCampus Lessons

OSCampus, the New Joomla LMS

Today we're releasing a major update to OSCampus, the new Learning Management System (LMS) for Joomla.

OSCampus is designed for online courses. You can use OSCampus to create classes with multiple lessons and quizzes. 

OSCampus is incredibly robust and is already used by 1,000's of people every week. OSCampus runs the video training on OSTraining, and it's architecture is the basis for Joomlashack University and the official Joomla.org training site!

Read more: You Can Now Include All Types of Media in OSCampus Lessons

You Must Update to Joomla! 3.6.4 Now

Joomla! 3.6.4 - Urgent Security Announcement

On Tuesday, October 25, the Joomla team released version 3.6.4, which is an urgent security update. 

We've compiled a short FAQ to help you, and we'll keep this updated as we know more.

Here's what you need to know about the Joomla 3.6.4 release ...

Read more: You Must Update to Joomla! 3.6.4 Now