This problem was annoying me because WordPress themes may show the full content of every single post when you visit a category page or archives page, and I didn’t want that. I poked around the WordPress API and it turns out that you can just use a text editor (or the built in WordPress theem Editor) and search for function the_content() and change it to the_excerpt(). Simple!
These changes can be applied to the following files:
- index.php
- category.php
- archive.php
- archives.php
- search.php