Bug in get_categories when asking for category children

[hovenko]

When asking for categories that are child of another category (cat1) and to
include empty categories I get different behaviour wether cat1 has children
or not.

Take the following code:

$cat_children   = get_categories(
        array(
                'child_of'      => 1,
                'hide_empty'    => false,
        );
);

print_r($cat_children);

Scenario 1:
I have the following categories:

1 - cat1 (no parent)
2 - cat2 (no parent)
3 - cat3 (parent:1)

In this case it prints out cat3.

Scenario 2:
I have the following categories:

1 - cat1 (no parent)
2 - cat2 (no parent)

In this case it prints out cat1 and cat2.

Expected behaviour is to get an empty list, simply because cat1
doesn't have any children.

[hovenko]

I don't understand why the milestone was changed to 2.3. This is the time for fixing bugs, right? From my point of view, this is a bug.

I believe the fix is as simple as checking if both the category hierarchy is empty and "child_of" is set, then return an empty array.

[hovenko]

Patch for the file wp-includes/category.php

[DD32]

I don't understand why the milestone was changed to 2.3. This is the time for fixing bugs, right? From my point of view, this is a bug.

2.3 is due on September 24th, There may be a 2.2.3 release before then, but i'm not sure.
Since its dealing with Categories, and we've got a new category backend in 2.3, it'd make sense to simply focus the testing on the new stuff instead.

I cant reproduce the issue in 2.3 either, So it looks to me its fixed there.

2.3 Release Info: ​http://comox.textdrive.com/pipermail/wp-hackers/2007-August/013962.html

[foolswisdom]

DD32, thanks for testing this in 2.3! Since you say it doesn't repro, changing milestone back to 2.2.3 .

[DD32]

Not an issue in 2.3, or 2.4(trunk), closing ticket.