Specifically aimed at programmers, this system plugin allows the extension and adaptation of Joomla! and 3rd party core classes.

When building websites, many times there is the need for adaptation or extension of core functionality. For instance,
when a Joomla! list model does not support filtering on a specific user id. An example:
- You are building a website where registered users can manage their own articles, keeping in mind that, since the
introduction of custom fields, articles can be almost anything you can imagine.
- In the frontend you provide a fancy article manager.
- Obviously you don't want users to modify eachother's articles, so you configure the ACL properly.
- You also don't want your users to see eachother's articles in the article manager. That presents you with a problem:
the Category List menu item type does not allow you to filter on an article's created_by field.
- The conventional approach is to create a template override, in which you run the article list query for a second time,
but this time filtering on the id of the logged in user.

With this plugin you can prevent that second, redundant query. Joomla! core's ContentModelArticles already has the logic
in place to filter on com_content's created_by. So the only thing we have to do, is create an override for the getItems()
method of the ContentModelCategory class, to which we add filtering on the id of the logged in user.

See the GitHub repository for the latest documentation (click Documentation in the panel on the right/below).

Use of this extension is soley for the brave and at your own risk. If you don't get it to work the way you want, read the documentation carefully, If you still can't get it to work, you are out of luck, because usage support is not included. Bugs can be filed as issues on GitHub. So can feature requests. Don't count on any of those to be rewarded though.

This plugin makes it possible for me to create overrides that are otherwise not possible without doing core hacks.
Ease of use
Due to the nature of this extension, making it work of it requires some effort. Once you get used to it, it is very powerful.
The support has been awesome for all the questions I have had. Whenever there was a doubt, this was quickly clarified by the developer.
The documentation is straightforward and describes what needs to be done to get this to work.
I used this to: This is used to override Easy Discuss and Joomla core models so I can alter the queries that are performed. This would otherwise only be possible by rebuilding part of the system in template overrides. Which is a huge overkill.

Obix Class Extender

Pieter-Jan de Vries
Last updated:
Mar 14 2023
1 year ago
Date added:
Jun 24 2021
GPLv2 or later
Free download
J3 J4

Uses Joomla! Update System


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