[wp-trac] [WordPress Trac] #22995: WP_Query Category stuff blank page

[WordPress Trac]

#22995: WP_Query Category stuff blank page
-------------------------------+------------------------------
 Reporter:  Ninos Ego          |       Owner:
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  Query              |     Version:  3.5
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |
-------------------------------+------------------------------

Comment (by Ninos Ego):

 Think I have found the bug. Adding a non existing category id I get the
 descripted error.
 On line '''/wp-includes/query.php:1745-1751''' you should check the id:
 just replace:
 {{{
 if ( $in ) {
         $q['category__in'][] = $cat;
         $q['category__in'] = array_merge( $q['category__in'],
 get_term_children($cat, 'category') );
 } else {
         $q['category__not_in'][] = $cat;
         $q['category__not_in'] = array_merge( $q['category__not_in'],
 get_term_children($cat, 'category') );
 }
 }}}

 with:
 {{{
 if( get_category($cat, false) ) {
         if ( $in ) {
                 $q['category__in'][] = $cat;
                 $q['category__in'] = array_merge( $q['category__in'],
 get_term_children($cat, 'category') );
         } else {
                 $q['category__not_in'][] = $cat;
                 $q['category__not_in'] = array_merge(
 $q['category__not_in'], get_term_children($cat, 'category') );
         }
 }
 }}}

 Otherwise ''$q['category__in']'' or ''$q['category__not_in']'' have got a
 wrong ID and send it in line '''/wp-includes/query.php:1761-1766''' via
 {{{
 $tax_query[] = array(
         'taxonomy' => 'category',
         'terms' => $q['category__in'],
         'field' => 'term_id',
         'include_children' => false
 );
 }}}

 and in line '''/wp-includes/query.php:1771-1776'''
 {{{
 $tax_query[] = array(
         'taxonomy' => 'category',
         'terms' => $q['category__not_in'],
         'operator' => 'NOT IN',
         'include_children' => false
 );
 }}}
 to the tax query. Because of that I get a blank page.

-- 
Ticket URL: <http://core.trac.wordpress.org/ticket/22995#comment:8>
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