WP_Query

How to add the built-in tags to a custom post type When most WordPress developers need something like post tags for a custom post type, they register a new taxonomy. But this is not always convenient. A custom taxonomy is a separate list of terms that lives only in that post type, and you also…

I had task to add the ability to add events (date, title, description, etc.) from dashboard and output them in the right place. I installed some plugin, at the start, but it haven't lived up to my expectations.

Intuitive Custom Post Order plugin sorts posts wrong on the front end The Intuitive Custom Post Order plugin is a convenient way to sort posts by drag and drop in the dashboard. It saves the order in the menu_order field and adds that sorting to queries. But sometimes the order in the dashboard is one…

Search WordPress by custom fields without a plugin Anyone who has used ACF or plain custom fields knows how convenient they are. But did you know that the default WordPress search does not look into custom fields at all? Live and learn.

WordPress pagination bug: the second page shows the same posts as the first A common pagination bug in custom loops: the page links look right, but page 2, page 3 and so on show exactly the same posts as page 1. The fix is one missing argument in the WP_Query call.

WP_Query loop: incorrect sort order with AJAX filters A custom loop with AJAX filters sorted posts correctly for one post type and incorrectly for another. The query arguments were the same, which was a mystery at first. The culprit turned out to be a plugin that changes the order of posts for the post types…

WP_Query: advanced arguments for real projects WP_Query is the main way to get posts in WordPress. Beyond post_type and posts_per_page it can combine taxonomy conditions, filter by custom fields and dates, sort by a field and exclude posts. These are the patterns that come up in almost every project.

Query posts by custom field with meta_query Custom fields are often used for things you later want to filter by: the city of an event, its date, a “featured” flag. WP_Query can filter by them with the meta_query argument, from a simple equality check to ranges and several conditions combined with AND/OR.

Modify the global WordPress query on default pages pre_get_posts fires after the query variable object is created but before the database query runs. It gives you direct access to the $query object for every query WordPress makes, including the main loop, so you can change arguments without duplicating the template or creating a secondary query.