How Posts in Sidebar chooses the main category of the post

A technical blog post on the new feature “Sort categories” in the Posts in Sidebar plugin.

One of the features of my plugin Posts in Sidebar is that the widget, when viewing a single post page (i.e. a blog post page), can display a content different from the standard. For example, a user could want to display a list of recent posts in the main widget but, when viewing a single post page, a list of posts published under the same category of the main post. The feature is available under Getting posts > Change the query when on single posts.

In a recent release of my plugin Posts in Sidebar (exactly the 3.8.4 version) I made an important change regarding which category to use in order to get the posts, when a post has multiple categories. In the previous versions the plugin picked up the category with the lowest letter in the alphabetically sorted list of the post’s categories and used it to get the posts. Starting from 3.8.4 the plugin can use the category with the lowest ID, that is the WordPress-style to choose the category for the permalink construction. Let’s see something more detailed on this.

Continue reading “How Posts in Sidebar chooses the main category of the post”

Posts in Sidebar 1.19

Yesterday I released Posts in Sidebar 1.19 that contains a requested change. Before 1.19 you have had a dropdown menu in order to select the category or the tag but, if you had a large number of terms, the page would take a lot of time to load.

Some of the users of this plugin asked me to change this. The change has come and now categories and tags will be chosen using a simple text field, where you have to enter the IDs or the slugs of the terms, in the way I’ll explain here.

Posts retrieving


In the “Posts retrieving” section the categories and tags are now chosen manually by entering their respective slugs (i.e., the short form generated by WordPress). To find these slugs, go to the categories/tags management and search there for the terms.

Obviously, this is not as simple as before, but it’s necessary in order to avoid slow page loading.

A benefit of this change is that now you can retrieve posts from multiple terms. Before 1.19 you got posts from one category and/or one tag, now you can get posts from multiple categories and multiple tags (for example, posts that are in “Category 1” or in “Category 2” or in “Category 3”, and so on). In order to do that, simply enter the slugs separated by comma, for example:


Also, you can get posts that are under two or more categories at the same time. In order to do that, simply use a + (a plus) between terms, for example:


This was not possible before 1.19.

Posts exclusion


In the posts exclusion section, I removed the two forms and added two simple text fields. In this case you will not use the slugs of the terms but their IDs. In order to easily find the IDs of the terms, install a plugin like Reveal IDs: this plugin will add a column in the page management of terms.

Even in this section of the widget, you can use a comma to separate each term or a plus sign, as described before.


After updating the plugin, it’s better to take a look at the widget of Posts in Sidebar and make sure all is OK. If all seems to be right, save the widget anyway.

In fact, in this version change, you could encounter a couple of “issues”, that can be easily resolved:

  1. If in the previous version you didn’t specify a category or a tag in the “Post retrieving” section, after updating you will find a “NULL” value. Simply delete this value and save the widget.
  2. If in the previous version you specified a category or a tag in the “Post exclusion” section, simply save the widget.

For any question or help, please use the WordPress forum.

New features in Posts in Sidebar

This is a Saturday of updates! After having released v.2.2 of Private Content plugin, now I’m proud to introduce you the just-cooked 1.8 version of Posts in Sidebar. Just last week I released the v1.7 with important new features like the possibility to show not only posts but also pages and custom post types. This week you’ll get the last missing features and this is the changelog for the new v1.8 of Posts in Sidebar:

  1. New: added post format as option to get posts.
  2. New: added option for link to custom post type archive.
  3. New: added option for link to post format archive.
  4. Other minor changes.

Only one function is now missing: grab posts using custom taxonomies. Hope to finish this work soon.

Enjoy! :)

Posts in Sidebar 1.7

New 1.7 version of the Posts in Sidebar plugin.

The Posts in Sidebar plugin has just been updated to version 1.7 and now it sports a series of changes. From day to day I receive requests both in the forum and via email from users who launch their idea. I think this is a very good thing for developers. The plugin is constantly evolving, also thanks to these suggestions.

The new version has this changelog:

  1. The plugin now can display not only posts, but also pages and custom post types.
  2. Now the author of the post can be displayed next to the date and comments.
  3. The content of the posts can now be displayed as Full content, meaning that the post is displayed as in a single post page (useful for a video-only posts, for example).
  4. The link at the end of the excerpt can now be displayed as Read more… (or whatever the user wants).
  5. Added French translation, thanks to Thérèse Lachance.

Many other changes have been done. What remains to do is:

  1. retrieve posts via posts format;
  2. retrieve posts via custom taxonomies.

I hope to have the time to do that. :)