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Change queries in get_{next|previous}_post so that plugins can INNER JOIN on other tables with an ID column. Fixes #4822 props Cimmo. 

git-svn-id: https://develop.svn.wordpress.org/trunk@6019 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Peter Westwood 2007-09-03 16:46:31 +00:00
parent 5e1d368094
commit a629aa8c5f
1 changed files with 10 additions and 10 deletions
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20
wp-includes/link-template.php
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@ -365,7 +365,7 @@ function get_previous_post($in_same_cat = false, $excluded_categories = '') {
$join = '';
if ( $in_same_cat ) {
$join = " INNER JOIN $wpdb->term_relationships AS tr ON $wpdb->posts.ID = tr.object_id ";
$join = " INNER JOIN $wpdb->term_relationships AS tr ON p.ID = tr.object_id ";
$cat_array = wp_get_object_terms($post->ID, 'category', 'fields=tt_ids');
$join .= ' AND (tr.term_taxonomy_id = ' . intval($cat_array[0]);
for ( $i = 1; $i < (count($cat_array)); $i++ ) {
@ -378,14 +378,14 @@ function get_previous_post($in_same_cat = false, $excluded_categories = '') {
if ( !empty($excluded_categories) ) {
$blah = explode(' and ', $excluded_categories);
$posts_in_ex_cats = get_objects_in_term($blah, 'category');
$posts_in_ex_cats_sql = 'AND ID NOT IN (' . implode($posts_in_ex_cats, ',') . ')';
$posts_in_ex_cats_sql = 'AND p.ID NOT IN (' . implode($posts_in_ex_cats, ',') . ')';
}
$join = apply_filters( 'get_previous_post_join', $join, $in_same_cat, $excluded_categories );
$where = apply_filters( 'get_previous_post_where', "WHERE post_date < '$current_post_date' AND post_type = 'post' AND post_status = 'publish' $posts_in_ex_cats_sql", $in_same_cat, $excluded_categories );
$sort = apply_filters( 'get_previous_post_sort', 'ORDER BY post_date DESC LIMIT 1' );
$where = apply_filters( 'get_previous_post_where', "WHERE p.post_date < '$current_post_date' AND p.post_type = 'post' AND p.post_status = 'publish' $posts_in_ex_cats_sql", $in_same_cat, $excluded_categories );
$sort = apply_filters( 'get_previous_post_sort', 'ORDER BY p.post_date DESC LIMIT 1' );
return @$wpdb->get_row("SELECT ID, post_title FROM $wpdb->posts $join $where $sort");
return @$wpdb->get_row("SELECT p.ID, p.post_title FROM $wpdb->posts AS p $join $where $sort");
}
function get_next_post($in_same_cat = false, $excluded_categories = '') {
@ -398,7 +398,7 @@ function get_next_post($in_same_cat = false, $excluded_categories = '') {
$join = '';
if ( $in_same_cat ) {
$join = " INNER JOIN $wpdb->term_relationships AS tr ON $wpdb->posts.ID = tr.object_id ";
$join = " INNER JOIN $wpdb->term_relationships AS tr ON p.ID = tr.object_id ";
$cat_array = wp_get_object_terms($post->ID, 'category', 'fields=tt_ids');
$join .= ' AND (tr.term_taxonomy_id = ' . intval($cat_array[0]);
for ( $i = 1; $i < (count($cat_array)); $i++ ) {
@ -411,14 +411,14 @@ function get_next_post($in_same_cat = false, $excluded_categories = '') {
if ( !empty($excluded_categories) ) {
$blah = explode(' and ', $excluded_categories);
$posts_in_ex_cats = get_objects_in_term($blah, 'category');
$posts_in_ex_cats_sql = 'AND ID NOT IN (' . implode($posts_in_ex_cats, ',') . ')';
$posts_in_ex_cats_sql = 'AND p.ID NOT IN (' . implode($posts_in_ex_cats, ',') . ')';
}
$join = apply_filters( 'get_next_post_join', $join, $in_same_cat, $excluded_categories );
$where = apply_filters( 'get_next_post_where', "WHERE post_date > '$current_post_date' AND post_type = 'post' AND post_status = 'publish' $posts_in_ex_cats_sql AND ID != $post->ID", $in_same_cat, $excluded_categories );
$sort = apply_filters( 'get_next_post_sort', 'ORDER BY post_date ASC LIMIT 1' );
$where = apply_filters( 'get_next_post_where', "WHERE p.post_date > '$current_post_date' AND p.post_type = 'post' AND p.post_status = 'publish' $posts_in_ex_cats_sql AND p.ID != $post->ID", $in_same_cat, $excluded_categories );
$sort = apply_filters( 'get_next_post_sort', 'ORDER BY p.post_date ASC LIMIT 1' );
return @$wpdb->get_row("SELECT ID, post_title FROM $wpdb->posts $join $where $sort");
return @$wpdb->get_row("SELECT p.ID, p.post_title FROM $wpdb->posts AS p $join $where $sort");
}