Changeset 2022 for trunk/wp-includes/template-functions-post.php

Timestamp:

12/30/2004 07:41:14 PM (20 years ago)

Author:

rboren

Message:

Add get_pages(). Improve wp_list_pages(). Props: Adi Sieker and Chris Waigl.

File:

• trunk/wp-includes/template-functions-post.php (modified) (6 diffs)

trunk/wp-includes/template-functions-post.php

@@ -322 +322 @@
 //
 
-function wp_list_pages($args = '') {
+function get_pages($args = '') {
     global $wpdb;
 
     parse_str($args, $r);
+
     if (!isset($r['child_of'])) $r['child_of'] = 0;
-    if (!isset($r['depth'])) $r['depth'] = 0;
-    if (!isset($r['show_date'])) $r['show_date'] = '';
     if (!isset($r['sort_column'])) $r['sort_column'] = 'post_title';
     if (!isset($r['sort_order'])) $r['sort_order'] = 'ASC';
-
 
     $exclusions = '';
@@ -343 +341 @@
     }
 
-    $option_dates = '';
-    if (! empty($r['show_date'])) {
-        if ('modified' == $r['show_date'])
-            $option_dates = ",UNIX_TIMESTAMP(post_modified) AS ts";
-        else
-            $option_dates = ",UNIX_TIMESTAMP(post_date) AS ts";
-    }
+    $dates = ",UNIX_TIMESTAMP(post_modified) AS time_modified";
+    $dates .= ",UNIX_TIMESTAMP(post_date) AS time_created";
 
     $post_parent = '';
@@ -355 +348 @@
         $post_parent = ' AND post_parent=' . $r['child_of'] . ' ';
     }
+
     $pages = $wpdb->get_results("SELECT " .
                                                             "ID, post_title,post_parent " .
-                                                            "$option_dates " .
+                                                            "$dates " .
                                                             "FROM $wpdb->posts " .
                                                             "WHERE post_status = 'static' " .
@@ -363 +357 @@
                                                             "$exclusions " .
                                                             "ORDER BY " . $r['sort_column'] . " " . $r['sort_order']);
+
+    return $pages;
+}
+
+function wp_list_pages($args = '') {
+    parse_str($args, $r);
+    if (!isset($r['depth'])) $r['depth'] = 0;
+    if (!isset($r['show_date'])) $r['show_date'] = '';
+    if (!isset($r['child_of'])) $r['child_of'] = 0;
+
+    // Query pages.
+    $pages = get_pages($args);
+
+    // Now loop over all pages that were selected
     $page_tree = Array();
     foreach($pages as $page) {
+        // set the title for the current page
         $page_tree[$page->ID]['title'] = $page->post_title;
 
-        if(!empty($r['show_date'])) {
-            $page_tree[$page->ID]['ts'] = $page->ts;
-        }
-        $page_tree[$page->post_parent]['children'][] = $page->ID;
-    }
-    page_level_out($r['child_of'],$page_tree, $r);
-}
-
-function page_level_out($parent, $page_tree, $args, $depth = 0) {
+        // set the selected date for the current page
+        // depending on the query arguments this is either
+        // the createtion date or the modification date
+        // as a unix timestamp. It will also always be in the
+        // ts field.
+        if (! empty($r['show_date'])) {
+            if ('modified' == $r['show_date'])
+                $page_tree[$page->ID]['ts'] = $page->date_modified;
+            else
+                $page_tree[$page->ID]['ts'] = $page->date_created;              
+        }
+
+        // The tricky bit!!
+        // Using the parent ID of the current page as the
+        // array index we set the curent page as a child of that page.
+        // We can now start looping over the $page_tree array
+        // with any ID which will output the page links from that ID downwards.
+        $page_tree[$page->post_parent]['children'][] = $page->ID;   
+    }
+    // Output of the pages starting with child_of as the root ID.
+    // child_of defaults to 0 if not supplied in the query.
+    _page_level_out($r['child_of'],$page_tree, $r);
+}
+
+function _page_level_out($parent, $page_tree, $args, $depth = 0) {
+    global $wp_query;
+
+    $queried_obj = $wp_query->get_queried_object();
+
     if($depth)
         $indent = join(array_fill(0,$depth,"\t"));
@@ -382 +411 @@
         $cur_page = $page_tree[$page_id];
         $title = $cur_page['title'];
-        echo $indent . '<li><a href="' . get_page_link($page_id) . '" title="' . wp_specialchars($title) . '">' . $title . '</a>';
+
+        $css_class = 'page_item';
+        if( $page_id == $queried_obj->ID) {
+            $css_class .= ' current_page_item';
+        }
+
+        echo $indent . '<li class="' . $css_class . '"><a href="' . get_page_link($page_id) . '" title="' . wp_specialchars($title) . '">' . $title . '</a>';
+
         if(isset($cur_page['ts'])) {
             $format = get_settings('date_format');
@@ -396 +432 @@
 
             if(!$args['depth'] || $depth < ($args['depth']-1)) {
-                page_level_out($page_id,$page_tree, $args, $new_depth);
+                _page_level_out($page_id,$page_tree, $args, $new_depth);
             }
             echo "$indent</ul>\n";
         }
         echo "$indent</li>\n";
-
     }
 }