I am happy to announce the release of my fourth collapsing X plugin for WordPress. This one is Collapsing Links, which was requested by several users of my other plugins. With the development of this plugin, I finally added the ability to have multiple instances of the widget. This took some careful study of some of the default wordpress plugins, and forced me to completely re-design how the plugin options are handled. In addition to the ability to have multiple instances of the plugin, the re-design also reduced the number of database queries, since now all the options for the plugin are stored in one row in the database. For more details, look at the Collapsing Links page.
Now that I have figured out these details, I plan on re-working the remaining plugins to allow multiple instances of the widgets as well. Expect to see these updates over the next few weeks.
There is one downside to having multiple instances of the widgets. In the current versions of Collapsing Archives, Categories, and Pages, you can use the plugin either as a widget or standalone. In future versions of the plugin, it will only work as a widget. When I originally wrote these plugins, widgets were new, and not standard for wordpress. Now they seem pretty ubiquitous, so hopefully this shouldn’t pose too much of a problem.
I hope that other people find the plugin useful. I must say that I enjoy developing wordpress plugins, since it a great way to utilize many different languages all at once — xhtml, css, javascript, php, and sql.