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Removing a Category from WordPress 3.1 RSS Feed

February 27, 2011 8:47 pm

I filter a category out of my WordPress RSS feed because it’s all my tweets from the week.  I want an archive (mostly for myself) but I don’t want to blast anyone following my RSS feed with them every week.  I’d been using code like this in functions.php in my theme to screen them…

Source code

function myRSSFilter($query) {
    if ($query->is_feed) {
        $query->set('cat','-100');
    }
    return $query;
}
 
add_filter('pre_get_posts','myRSSFilter');

Where the category has an ID of 100 so you put -100 in the code.

This doesn’t work in WordPress 3.1 and I’d not come across a fix so I did a bit of experimenting and found that this code seems to remove the unwanted category from the feed…

Source code

function myRSSFilter($query) {
    if ($query->is_feed) {
        $query->set ('category__not_in', '100' );
    }
    return $query;
}
 
add_filter('pre_get_posts','myRSSFilter');

function myFilter($query) {
    if ($query->is_feed) {
        $query->set('cat','-99');
    }
return $query;
}
Source code
  
function myRSSFilter($query) {
    if ($query->is_feed) {
        $query->set('cat','-100');
    }
    return $query;
}
 
add_filter('pre_get_posts','myRSSFilter');


add_filter('pre_get_posts','myFilter');