In same category support for next and previous post navigation. http://mosquito.wordpress.org/view.php?id=1252 Props: skippy
git-svn-id: http://svn.automattic.com/wordpress/trunk@2542 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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ryan
parent
1eac787dce
commit
527e544e2f
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@ -198,59 +198,69 @@ function edit_comment_link($link = 'Edit This', $before = '', $after = '') {
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// Navigation links
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function get_previous_post($in_same_cat = false, $excluded_categories = '') {
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global $post, $wpdb;
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global $post, $wpdb;
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if(! is_single()) {
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return null;
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}
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if(! is_single()) {
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return null;
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}
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$current_post_date = $post->post_date;
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$current_category = $post->post_category;
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$current_post_date = $post->post_date;
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$sqlcat = '';
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if ($in_same_cat) {
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$sqlcat = " AND post_category = '$current_category' ";
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}
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$join = '';
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if ($in_same_cat) {
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$join = " INNER JOIN $wpdb->post2cat ON $wpdb->posts.ID= $wpdb->post2cat.post_id ";
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$cat_array = get_the_category($post->ID);
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$join .= ' AND (category_id = ' . intval($cat_array[0]->cat_ID);
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for ($i = 1; $i < (count($cat_array)); $i++) {
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$join .= ' OR category_id = ' . intval($cat_array[$i]->cat_ID);
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}
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$join .= ')';
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}
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$sql_exclude_cats = '';
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if (!empty($excluded_categories)) {
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$blah = explode('and', $excluded_categories);
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foreach($blah as $category) {
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$category = intval($category);
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$sql_exclude_cats .= " AND post_category != $category";
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}
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}
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$sql_exclude_cats = '';
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if (!empty($excluded_categories)) {
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$blah = explode('and', $excluded_categories);
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foreach($blah as $category) {
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$category = intval($category);
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$sql_exclude_cats .= " AND post_category != $category";
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}
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}
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return @$wpdb->get_row("SELECT ID, post_title FROM $wpdb->posts WHERE post_date < '$current_post_date' AND post_status = 'publish' $sqlcat $sql_exclude_cats ORDER BY post_date DESC LIMIT 1");
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return @$wpdb->get_row("SELECT ID, post_title FROM $wpdb->posts $join WHERE post_date < '$current_post_date' AND post_status = 'publish' $sqlcat $sql_exclude_cats ORDER BY post_date DESC LIMIT 1");
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}
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function get_next_post($in_same_cat = false, $excluded_categories = '') {
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global $post, $wpdb;
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global $post, $wpdb;
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if(! is_single()) {
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return null;
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}
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if(! is_single()) {
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return null;
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}
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$current_post_date = $post->post_date;
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$current_category = $post->post_category;
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$current_post_date = $post->post_date;
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$sqlcat = '';
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if ($in_same_cat) {
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$sqlcat = " AND post_category = '$current_category' ";
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}
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$join = '';
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if ($in_same_cat) {
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$join = " INNER JOIN $wpdb->post2cat ON $wpdb->posts.ID= $wpdb->post2cat.post_id ";
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$cat_array = get_the_category($post->ID);
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$join .= ' AND (category_id = ' . intval($cat_array[0]->cat_ID);
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for ($i = 1; $i < (count($cat_array)); $i++) {
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$join .= ' OR category_id = ' . intval($cat_array[$i]->cat_ID);
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}
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$join .= ')';
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}
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$sql_exclude_cats = '';
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if (!empty($excluded_categories)) {
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$blah = explode('and', $excluded_categories);
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foreach($blah as $category) {
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$category = intval($category);
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$sql_exclude_cats .= " AND post_category != $category";
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}
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}
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$sql_exclude_cats = '';
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if (!empty($excluded_categories)) {
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$blah = explode('and', $excluded_categories);
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foreach($blah as $category) {
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$category = intval($category);
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$sql_exclude_cats .= " AND post_category != $category";
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}
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}
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$now = current_time('mysql');
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$now = current_time('mysql');
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return @$wpdb->get_row("SELECT ID,post_title FROM $wpdb->posts WHERE post_date > '$current_post_date' AND post_date < '$now' AND post_status = 'publish' $sqlcat $sql_exclude_cats AND ID != $post->ID ORDER BY post_date ASC LIMIT 1");
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return @$wpdb->get_row("SELECT ID,post_title FROM $wpdb->posts $join WHERE post_date > '$current_post_date' AND post_date < '$now' AND post_status = 'publish' $sqlcat $sql_exclude_cats AND ID != $post->ID ORDER BY post_date ASC LIMIT 1");
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}
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function previous_post_link($format='« %link', $link='%title', $in_same_cat = false, $excluded_categories = '') {
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@ -295,79 +305,48 @@ function next_post_link($format='%link »', $link='%title', $in_same_cat =
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// Deprecated. Use previous_post_link().
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function previous_post($format='%', $previous='previous post: ', $title='yes', $in_same_cat='no', $limitprev=1, $excluded_categories='') {
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global $id, $post, $wpdb;
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global $posts, $posts_per_page, $s;
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if(($posts_per_page == 1) || is_single()) {
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if ( empty($in_same_cat) || 'no' == $in_same_cat )
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$in_same_cat = false;
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else
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$in_same_cat = true;
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$current_post_date = $post->post_date;
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$current_category = $post->post_category;
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$post = get_previous_post($in_same_cat, $excluded_categories);
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$sqlcat = '';
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if ($in_same_cat != 'no') {
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$sqlcat = " AND post_category = '$current_category' ";
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}
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if(! $post) {
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return;
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}
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$sql_exclude_cats = '';
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if (!empty($excluded_categories)) {
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$blah = explode('and', $excluded_categories);
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foreach($blah as $category) {
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$category = intval($category);
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$sql_exclude_cats .= " AND post_category != $category";
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}
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}
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$limitprev--;
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$lastpost = @$wpdb->get_row("SELECT ID, post_title FROM $wpdb->posts WHERE post_date < '$current_post_date' AND post_status = 'publish' $sqlcat $sql_exclude_cats ORDER BY post_date DESC LIMIT $limitprev, 1");
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if ($lastpost) {
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$string = '<a href="'.get_permalink($lastpost->ID).'">'.$previous;
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if ($title == 'yes') {
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$string .= apply_filters('the_title', $lastpost->post_title, $lastpost);
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}
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$string .= '</a>';
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$format = str_replace('%', $string, $format);
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echo $format;
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}
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}
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$string = '<a href="'.get_permalink($post->ID).'">'.$previous;
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if ($title == 'yes') {
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$string .= apply_filters('the_title', $post->post_title, $post);
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}
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$string .= '</a>';
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$format = str_replace('%', $string, $format);
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echo $format;
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}
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// Deprecated. Use next_post_link().
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function next_post($format='%', $next='next post: ', $title='yes', $in_same_cat='no', $limitnext=1, $excluded_categories='') {
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global $posts_per_page, $post, $wpdb;
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if(1 == $posts_per_page || is_single()) {
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if ( empty($in_same_cat) || 'no' == $in_same_cat )
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$in_same_cat = false;
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else
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$in_same_cat = true;
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$current_post_date = $post->post_date;
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$current_category = $post->post_category;
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$post = get_next_post($in_same_cat, $excluded_categories);
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$sqlcat = '';
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if ($in_same_cat != 'no') {
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$sqlcat = " AND post_category='$current_category' ";
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}
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if(! $post) {
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return;
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}
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$sql_exclude_cats = '';
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if (!empty($excluded_categories)) {
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$blah = explode('and', $excluded_categories);
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foreach($blah as $category) {
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$category = intval($category);
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$sql_exclude_cats .= " AND post_category != $category";
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}
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}
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$now = current_time('mysql', 1);
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$limitnext--;
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$nextpost = @$wpdb->get_row("SELECT ID,post_title FROM $wpdb->posts WHERE post_date > '$current_post_date' AND post_date_gmt < '$now' AND post_status = 'publish' $sqlcat $sql_exclude_cats AND ID != $post->ID ORDER BY post_date ASC LIMIT $limitnext,1");
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if ($nextpost) {
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$string = '<a href="'.get_permalink($nextpost->ID).'">'.$next;
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if ($title=='yes') {
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$string .= apply_filters('the_title', $nextpost->post_title, $nextpost);
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}
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$string .= '</a>';
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$format = str_replace('%', $string, $format);
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echo $format;
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}
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}
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$string = '<a href="'.get_permalink($post->ID).'">'.$next;
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if ($title=='yes') {
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$string .= apply_filters('the_title', $post->post_title, $nextpost);
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}
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$string .= '</a>';
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$format = str_replace('%', $string, $format);
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echo $format;
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}
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function get_pagenum_link($pagenum = 1) {
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