warning in category template function

[Denis-de-Bernardy]

Warning: Invalid argument supplied for foreach() in /home/dolelm/public_html/testblog/wp-includes/template-functions-category.php on line 321

You can get this error when all categories are excluded using the available hook to drop categories.

to fix, cast $categories on line 304 as an array, i.e.:

		$query = "
			SELECT cat_ID, cat_name, category_nicename, category_description, category_parent, category_count
			FROM $wpdb->categories
			WHERE cat_ID > 0 $exclusions
			ORDER BY $sort_column $sort_order";

		$categories = (array) $wpdb->get_results($query);

D.

Hi Denis-de-Bernardy,

Thank you!

If you have a fix please attach it as a patch -- even when it is trivial, it helps.

Also, if you can explicitly identify whether you have tested on trunk or not that is also very helpful.

Patch for 2.0.x based on the code provided by Denis-de-Bernardy.

template-functions-category.php no longer exists in trunk and a quick search didn't give me that code in another file, so I'm assuming this is a 2.0 only issue.

(In [4280]) cast to array. props to Denis de Bernardy, Nazgul. fixes #3179

Milestone 2.0.5 deleted