Joomla: Focus on Categories

Categories are a way to organize content into logical groups. They provide structure to your website and make information easier to find. Many Joomla components use categories.

In this explanation, Peter Martin discusses the basics of com_categories and reviews the most important settings in the category manager.

After that, you go one step further. You will see how categories are technically structured in the database. You will also learn how external components use the Joomla category manager. Finally, lft and rgt are discussed, along with the importance of the “Rebuild” function to keep the structure correct.

With this knowledge, you will better understand how categories work in Joomla. If you run into problems, you will also have a better idea of how to solve them.