I am looking for a way to show Joomla 4 articles in a category blog filtered by one (or more) of my custom fields. - The category blog settings in the backend seems only allow to filter by category, tag and other default article parameters. - Is filtering a blog by custom fields possible, anyways?

1 Answer 1


You can filter on Custom Fields via multiple ways:

  • filtering via JavaScript + CSS. This will load all articles, but can CSS hide (display:none) them using some JavaScript. The articles are still there in the HTML source but just not visible.
  • filtering via PHP in Joomla's Articles Model. This will load only the articles that fit to the filter state. I used this technique for a client project: I've programmed a System Plugin that overrides Joomla's Articles Model in the populateState method. And I programmed a Module to set the Filters. This way I was able to filter the Articles based on Filter Options using some Custom Field Fields.

There are some 3rd party extensions available that add filtering functionality to Joomla's articles:

  • I also suggest to check one of the suggested 3rd party extensions. No need to re-invent the wheel on that.
    – Sakis
    Jul 14, 2022 at 13:36
  • @pe7er could you share your System Plugin code especially on how you overwrite Joomla's Article Model in the populateState method.
    – cappu
    Jul 23, 2022 at 20:23
  • I thought of writing a Plugin for this. It works fine on small projects, but may run into performance issues on larger ones. extensions.joomla.org/extension/authoring-a-content/…
    – cappu
    Sep 1 at 16:07

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