Taxomony is used to create hierarchical relations between objects. It is part of the Moyo CCK and is a dependency for many Moyo components and modules. Although there is no GUI for this component, it contains a number of important helpers and functions to manage these relations.

com_taxonomy is like a roll of duct tape. It holds everything together, even if they weren't meant to. It can relate articles to each other, tags to articles, articles to categories, categories to categories, articles to events, events to multimedia items and a lot more.

Com_taxonomy was developed by Moyo Web Architects.

• Joomla 3.X , or possibly Joomla 2.5.
• Koowa 0.9 or 1.0 (as yet, Koowa 2 is not supported)
• PHP 5.3.10 or better
• Composer

Installation is done through composer. In your composer.json file, you should add the following lines to the repositories section:

{
    "name": "moyo/taxonomy",
    "type": "vcs",
    "url": "https://git.assembla.com/moyo-content.taxonomy.git"
}

The require section should contain the following line:

    "moyo/taxonomy": "2.0.*",

Afterward, just run composer update from the root of your Joomla project.

As of september 2014, a major refactor has been released. These versions are incompatible, since the #__taxonomies_relations table has been dropped in favor of the ancestors and descendents fields. If your #__taxonomies_taxonomies table contains these fields (and there are values for them), it is safe to assume that you are at version 2.

Another option, currently only available for Moyo developers, is by using the jsymlink script from the Moyo Git Tools.

This behavior saves a parent identifier and parent type to a taxonomy.

Does all the work concerning ancestor and descendant management.

Each taxonomy is treated as a node in a huge tree. This database behavior contains all node-related functions.

Handles ordering within complex taxonomy structures. Behaves similar to the stock orderable behavior in the koowa framework, and is a complement to the original behavior.