Tom BelknapOK, I think I understand the nature of the problem, but not the solution.
I'm trying to create a contextual archive list: the next five posts and the previous five posts after the current post a visitor is viewing. Since there is no native WP function that will do this, I tried using query_posts to accomplish this task in the following way:
function iabc_context_archive($current_post) {
global $wpdb;
if(is_single()) :
// get newer posts:
add_filter('posts_where', 'iabc_filterWhere_newer');
$newer = query_posts('showposts=5&sortby=data&sort=DESC');
remove_filter('posts_where', 'iabc_filterWhere_newer');
// get older posts:
add_filter('posts_where', 'iabc_filterWhere_older');
$older = query_posts('showposts=5&sortby=data&sort=ASC');
remove_filter('posts_where', 'iabc_filterWhere_older');
// merge returns into single array. Add the current post and mark it as such:
if($current_post) :
$current_post->thepost = 1;
$newer[] = $current_post;
endif;
$list = array_merge((array)$newer, (array)$older);
else:
// just get the latest posts
$list = get_posts('numberposts=5');
endif;
// Output:
print('<ul id="archive">');
foreach((array)$list as $next) :
$title = str_split($next->post_content, 40);
$next->thepost ? $class = ' class="current" ' : $class = '';
print('<li'.$class.'><a href="'.get_permalink($next->ID).'" title="'.$title[0].'">'.$title[0].'</a></li>');
endforeach;
print('</ul>');
}
function iabc_filterWhere_newer($where = '') {
global $post;
$where .= " AND post_date > '".$post->post_date."'";
return $where;
}
function iabc_filterWhere_older($where = '') {
global $post;
$where .= " AND post_date < '".$post->post_date."'";
return $where;
}The problem I am finding is that the links don't work with this active. They go to the correct URL, but at that URL, WordPress seems to be pulling the wrong content: instead of grabbing post ID 21, it seems to be pulling post ID 12, which is the last published article on the site.
I take this to mean that the posts_where is not getting reset from my last operation, even though I am removing the filter. I have no idea how to correct this problem, and would be very thankful for anyone who can provide a solution!
An example of the problem can be seen here:
http://iam.bit-character.com/archives/21
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